Method And Apparatus For Purifying Nitration Products

Patent No. EP2705020 (titled "Method And Apparatus For Purifying Nitration Products") was filed by Josef Meissner on May 18, 2012. The application was issued on Nov 5, 2025.

Patent Family

Statuses, jurisdictions and citation links are shared on request.

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

Company	Opposition Date	Representative
COVESTRO DEUTSCHLAND	Jan 7, 2016	LEVPAT
NORAM	Dec 23, 2015	M ZARDI

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

Date
Description

Oct 9, 2025
Decision to maintain the European patent in amended form
Oct 9, 2025
Decision to maintain the European patent in amended form
Oct 9, 2025
Decision to maintain the European patent in amended form
Sep 29, 2025
(Electronic) Receipt
Sep 29, 2025
English translation of the claims
Sep 29, 2025
Filing of the translation of the amended claims
Sep 29, 2025
French translation of claims
Sep 29, 2025
Letter accompanying subsequently filed items
Sep 15, 2025
Communication to opponent concerning maintenance
Sep 15, 2025
Communication to opponent concerning maintenance
Sep 15, 2025
Communication with request to file translations
Sep 10, 2025
Maintenance of the patent with the documents specified in the final decision
Apr 28, 2025
Brief communication - Opposition proceedings
Apr 28, 2025
Brief communication - Opposition proceedings
Apr 28, 2025
Brief communication - Opposition proceedings
Apr 28, 2025
Druckexemplar in opposition procedure
Apr 28, 2025
Grounds for the decision (Annex) - opposition
Apr 28, 2025
Interlocutory decision in opposition proceedings
Apr 28, 2025
Interlocutory decision in opposition proceedings
Apr 28, 2025
Interlocutory decision in opposition proceedings
Apr 28, 2025
Means of redress
Apr 24, 2025
Decision of the Opposition Division and instruction
Nov 19, 2024
Brief communication - Opposition proceedings
Nov 19, 2024
Brief communication - Opposition proceedings
Nov 11, 2024
(Electronic) Receipt
Nov 11, 2024
Letter accompanying subsequently filed items
Nov 11, 2024
Reply to an examination report in opposition proceedings
Oct 28, 2024
Annex to the communication - opposition
Oct 28, 2024
Brief communication - Opposition proceedings
Oct 28, 2024
Brief communication - Opposition proceedings
Oct 28, 2024
Brief communication - Opposition proceedings
Oct 28, 2024
Communication inviting the parties to file observations
Oct 28, 2024
Communication inviting the parties to file observations
Oct 28, 2024
Communication inviting the parties to file observations
Aug 30, 2024
Brief communication - Opposition proceedings
Aug 30, 2024
Brief communication - Opposition proceedings
Aug 22, 2024
(Electronic) Receipt
Aug 22, 2024
Letter accompanying subsequently filed items
Aug 22, 2024
Letter regarding the opposition procedure (no time limit)
Aug 20, 2024
Brief communication - Opposition proceedings
Aug 20, 2024
Brief communication - Opposition proceedings
Aug 13, 2024
(Electronic) Receipt
Aug 13, 2024
Amended description with annotations
Aug 13, 2024
Description
Aug 13, 2024
Letter accompanying subsequently filed items
Aug 13, 2024
Reply to an examination report in opposition proceedings
Jul 19, 2024
Brief communication - Opposition proceedings
Jul 19, 2024
Brief communication - Opposition proceedings
Jul 11, 2024
(Electronic) Receipt
Jul 11, 2024
Letter accompanying subsequently filed items
Jul 11, 2024
Letter regarding the opposition procedure (no time limit)
Jul 10, 2024
Brief communication - Opposition proceedings
Jul 10, 2024
Brief communication - Opposition proceedings
Jul 3, 2024
(Electronic) Receipt
Jul 3, 2024
Letter accompanying subsequently filed items
Jul 3, 2024
Reply to an examination report in opposition proceedings
Jun 20, 2024
Brief communication - Opposition proceedings
Jun 20, 2024
Brief communication - Opposition proceedings
Jun 14, 2024
(Electronic) Receipt
Jun 14, 2024
Letter accompanying subsequently filed items
Jun 14, 2024
Letter regarding the opposition procedure (no time limit)
Jun 10, 2024
Brief communication - Opposition proceedings
Jun 10, 2024
Brief communication - Opposition proceedings
Jun 3, 2024
(Electronic) Receipt
Jun 3, 2024
Amended description with annotations
Jun 3, 2024
Description
Jun 3, 2024
Letter accompanying subsequently filed items
Jun 3, 2024
Reply to an examination report in opposition proceedings
May 8, 2024
Annex to the communication - opposition
May 8, 2024
Brief communication - Opposition proceedings
May 8, 2024
Brief communication - Opposition proceedings
May 8, 2024
Brief communication - Opposition proceedings
May 8, 2024
Communication inviting the parties to file observations
May 8, 2024
Communication inviting the parties to file observations
May 8, 2024
Communication inviting the parties to file observations
Apr 17, 2024
Decision of the Board of Appeal
Apr 17, 2024
F3032 Notification(s) of the decision
Apr 17, 2024
F3032 Notification(s) of the decision
Apr 17, 2024
F3032 Notification(s) of the decision
Feb 2, 2024
F3013 Oral Proceedings: Forwarding minutes
Feb 2, 2024
F3013 Oral Proceedings: Forwarding minutes
Feb 2, 2024
F3013 Oral Proceedings: Forwarding minutes
Feb 2, 2024
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Dec 13, 2023
F3018 Oral proceedings: Confirmation interpreters
Dec 13, 2023
F3018 Oral proceedings: Confirmation interpreters
Dec 13, 2023
F3018 Oral proceedings: Confirmation interpreters
Dec 4, 2023
F3345 Forwarding of submissions to parties
Dec 4, 2023
F3345 Forwarding of submissions to parties
Nov 29, 2023
(Electronic) Receipt
Nov 29, 2023
Letter accompanying subsequently filed items
Nov 29, 2023
Letter dealing with oral proceedings during the appeal procedure
Nov 7, 2023
F3345 Forwarding of submissions to parties
Nov 7, 2023
F3345 Forwarding of submissions to parties
Nov 6, 2023
F3345 Forwarding of submissions to parties
Nov 6, 2023
F3345 Forwarding of submissions to parties
Nov 2, 2023
(Electronic) Receipt
Nov 2, 2023
Letter accompanying subsequently filed items
Nov 2, 2023
Letter dealing with oral proceedings during the appeal procedure
Oct 31, 2023
(Electronic) Receipt
Oct 31, 2023
(Electronic) Receipt
Oct 31, 2023
Letter accompanying subsequently filed items
Oct 31, 2023
Letter accompanying subsequently filed items
Oct 31, 2023
Letter dealing with oral proceedings during the appeal procedure
Oct 27, 2023
Oral proceedings: change of venue
Oct 27, 2023
Oral proceedings: change of venue
Oct 27, 2023
Oral proceedings: change of venue
Oct 25, 2023
F3345 Forwarding of submissions to parties
Oct 25, 2023
F3345 Forwarding of submissions to parties
Oct 20, 2023
(Electronic) Receipt
Oct 20, 2023
F3345 Forwarding of submissions to parties
Oct 20, 2023
F3345 Forwarding of submissions to parties
Oct 20, 2023
Letter accompanying subsequently filed items
Oct 20, 2023
Letter dealing with oral proceedings during the appeal procedure
Oct 17, 2023
(Electronic) Receipt
Oct 17, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 17, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 17, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 17, 2023
Letter accompanying subsequently filed items
Oct 17, 2023
Letter dealing with oral proceedings during the appeal procedure
Sep 22, 2023
F3345 Forwarding of submissions to parties
Sep 22, 2023
F3345 Forwarding of submissions to parties
Sep 19, 2023
(Electronic) Receipt
Sep 19, 2023
Letter accompanying subsequently filed items
Sep 19, 2023
Letter dealing with oral proceedings during the appeal procedure
Mar 29, 2023
Advice of delivery
Mar 28, 2023
F3017 Oral Proceedings: Notification of cancellation/postponing
Mar 28, 2023
F3017 Oral Proceedings: Notification of cancellation/postponing
Mar 28, 2023
F3017 Oral Proceedings: Notification of cancellation/postponing
Mar 22, 2023
F3014 Oral Proceedings: Order cancelling/postponing
Feb 14, 2023
F3345 Forwarding of submissions to parties
Feb 14, 2023
F3345 Forwarding of submissions to parties
Feb 9, 2023
(Electronic) Receipt
Feb 9, 2023
Letter accompanying subsequently filed items
Feb 9, 2023
Letter dealing with oral proceedings during the appeal procedure
Feb 9, 2023
Letter dealing with oral proceedings during the appeal procedure
Feb 3, 2023
F3345 Forwarding of submissions to parties
Feb 3, 2023
F3345 Forwarding of submissions to parties
Feb 3, 2023
F3345 Forwarding of submissions to parties
Feb 3, 2023
F3345 Forwarding of submissions to parties
Feb 2, 2023
(Electronic) Receipt
Feb 2, 2023
Letter accompanying subsequently filed items
Feb 2, 2023
Letter dealing with oral proceedings during the appeal procedure
Feb 1, 2023
(Electronic) Receipt
Feb 1, 2023
F3345 Forwarding of submissions to parties
Feb 1, 2023
F3345 Forwarding of submissions to parties
Feb 1, 2023
Letter accompanying subsequently filed items
Feb 1, 2023
Letter dealing with oral proceedings during the appeal procedure
Jan 30, 2023
(Electronic) Receipt
Jan 30, 2023
Letter accompanying subsequently filed items
Jan 30, 2023
Letter dealing with oral proceedings during the appeal procedure
Jan 26, 2023
Advice of delivery
Jan 26, 2023
F3345 Forwarding of submissions to parties
Jan 26, 2023
F3345 Forwarding of submissions to parties
Jan 23, 2023
(Electronic) Receipt
Jan 23, 2023
Annexes (other than cited documents) regarding appeal procedure
Jan 23, 2023
Letter accompanying subsequently filed items
Jan 23, 2023
Letter dealing with oral proceedings during the appeal procedure
Jan 20, 2023
F3011.1 Oral Proceedings: summons
Jan 20, 2023
F3011.1 Oral Proceedings: summons
Jan 20, 2023
F3011.1 Oral Proceedings: summons
Jan 18, 2023
Advice of delivery
Jan 18, 2023
F3010 Oral proceedings: order for summons
Jan 16, 2023
F3014 Oral Proceedings: Order cancelling/postponing
Jan 16, 2023
F3017 Oral Proceedings: Notification of cancellation/postponing
Jan 16, 2023
F3017 Oral Proceedings: Notification of cancellation/postponing
Jan 16, 2023
F3017 Oral Proceedings: Notification of cancellation/postponing
Jan 16, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 16, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 16, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 16, 2023
F3345 Forwarding of submissions to parties
Jan 16, 2023
F3345 Forwarding of submissions to parties
Jan 15, 2023
Oral proceedings: Request for postponement
Dec 9, 2022
F3018 Oral proceedings: Confirmation interpreters
Dec 9, 2022
F3018 Oral proceedings: Confirmation interpreters
Dec 9, 2022
F3018 Oral proceedings: Confirmation interpreters
Nov 30, 2022
F3345 Forwarding of submissions to parties
Nov 30, 2022
F3345 Forwarding of submissions to parties
Nov 28, 2022
F3345 Forwarding of submissions to parties
Nov 28, 2022
F3345 Forwarding of submissions to parties
Nov 25, 2022
(Electronic) Receipt
Nov 25, 2022
Letter accompanying subsequently filed items
Nov 25, 2022
Letter dealing with oral proceedings during the appeal procedure
Nov 23, 2022
(Electronic) Receipt
Nov 23, 2022
Letter accompanying subsequently filed items
Nov 23, 2022
Letter dealing with oral proceedings during the appeal procedure
Nov 22, 2022
Advice of delivery
Nov 21, 2022
(Electronic) Receipt
Nov 21, 2022
Letter accompanying subsequently filed items
Nov 17, 2022
Oral proceedings: change of venue
Nov 17, 2022
Oral proceedings: change of venue
Nov 17, 2022
Oral proceedings: change of venue
Nov 8, 2022
F3345 Forwarding of submissions to parties
Nov 8, 2022
F3345 Forwarding of submissions to parties
Nov 3, 2022
(Electronic) Receipt
Nov 3, 2022
Letter accompanying subsequently filed items
Nov 3, 2022
Letter dealing with oral proceedings during the appeal procedure
Oct 28, 2022
F3345 Forwarding of submissions to parties
Oct 28, 2022
F3345 Forwarding of submissions to parties
Oct 28, 2022
F3345 Forwarding of submissions to parties
Oct 28, 2022
F3345 Forwarding of submissions to parties
Oct 26, 2022
(Electronic) Receipt
Oct 26, 2022
Letter accompanying subsequently filed items
Oct 26, 2022
Letter dealing with oral proceedings during the appeal procedure
Oct 25, 2022
(Electronic) Receipt
Oct 25, 2022
Letter accompanying subsequently filed items
Oct 25, 2022
Letter dealing with oral proceedings during the appeal procedure
Oct 19, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 19, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 19, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jun 10, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jun 10, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jun 10, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 30, 2022
F3345 Forwarding of submissions to parties
May 30, 2022
F3345 Forwarding of submissions to parties
May 24, 2022
(Electronic) Receipt
May 24, 2022
Letter accompanying subsequently filed items
May 24, 2022
Letter dealing with oral proceedings during the appeal procedure
May 23, 2022
Advice of delivery
May 18, 2022
F3011.1 Oral Proceedings: summons
May 18, 2022
F3011.1 Oral Proceedings: summons
May 18, 2022
F3011.1 Oral Proceedings: summons
May 13, 2022
F3010 Oral proceedings: order for summons
Jul 6, 2020
F3303.16 Change of composition of the Board (T)
May 19, 2020
Communication of amended entries in the Register of European Patents
May 7, 2020
Request for change of opponent's representative
Nov 9, 2018
F3345 Forwarding of submissions to parties
Nov 6, 2018
(Electronic) Receipt
Nov 6, 2018
Letter accompanying subsequently filed items
Nov 6, 2018
Letter relating to Appeal Procedure
Aug 10, 2018
F3345 Forwarding of submissions to parties
Aug 6, 2018
(Electronic) Receipt
Aug 6, 2018
Annexes (other than cited documents) regarding appeal procedure
Aug 6, 2018
Annexes (other than cited documents) regarding appeal procedure
Aug 6, 2018
Annexes (other than cited documents) regarding appeal procedure
Aug 6, 2018
Annexes (other than cited documents) regarding appeal procedure
Aug 6, 2018
Annexes (other than cited documents) regarding appeal procedure
Aug 6, 2018
Annexes (other than cited documents) regarding appeal procedure
Aug 6, 2018
Annexes (other than cited documents) regarding appeal procedure
Aug 6, 2018
Claims
Aug 6, 2018
Letter accompanying subsequently filed items
Aug 6, 2018
Reply to appeal
May 24, 2018
Composition of the board (T)
Mar 27, 2018
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Mar 27, 2018
F3345 Forwarding of submissions to parties
Mar 27, 2018
F3345 Forwarding of submissions to parties
Mar 20, 2018
(Electronic) Receipt
Mar 20, 2018
(Electronic) Receipt
Mar 20, 2018
Letter accompanying subsequently filed items
Mar 20, 2018
Letter accompanying subsequently filed items
Mar 20, 2018
Non-Patent Literature cited during the appeal procedure
Mar 20, 2018
Non-Patent Literature cited during the appeal procedure
Mar 20, 2018
Non-Patent Literature cited during the appeal procedure
Mar 20, 2018
Non-Patent Literature cited during the appeal procedure
Mar 20, 2018
Non-Patent Literature cited during the appeal procedure
Mar 20, 2018
Non-Patent Literature cited during the appeal procedure
Mar 20, 2018
Statement of grounds of appeal
Mar 20, 2018
Statement of grounds of appeal
Mar 19, 2018
(Electronic) Receipt
Mar 19, 2018
Annexes (other than cited documents) regarding appeal procedure
Mar 19, 2018
Annexes (other than cited documents) regarding appeal procedure
Mar 19, 2018
Letter accompanying subsequently filed items
Mar 19, 2018
Statement of grounds of appeal
Feb 8, 2018
F3345 Forwarding of submissions to parties
Feb 5, 2018
(Electronic) Receipt
Feb 5, 2018
Letter accompanying subsequently filed items
Feb 5, 2018
Request for change of opponent's representative
Jan 30, 2018
(Electronic) Receipt
Jan 30, 2018
Letter accompanying subsequently filed items
Jan 30, 2018
Request for change of opponent's representative
Jan 25, 2018
Refund of fees
Jan 22, 2018
F3345 Forwarding of submissions to parties
Jan 19, 2018
Communication of amended entries in the Register of European Patents
Jan 19, 2018
F3345 Forwarding of submissions to parties
Jan 19, 2018
Letter relating to Appeal Procedure
Jan 17, 2018
Letter relating to Appeal Procedure
Jan 11, 2018
F3204 Communication of the file number to the parties
Jan 10, 2018
F3204 Communication of the file number to the parties
Jan 9, 2018
(Electronic) Receipt
Jan 9, 2018
Letter accompanying subsequently filed items
Jan 9, 2018
Request for change of opponent's representative
Jan 8, 2018
(Electronic) Receipt
Jan 8, 2018
Letter accompanying subsequently filed items
Jan 8, 2018
Notice of appeal
Jan 5, 2018
Processing of an appeal
Jan 4, 2018
(Electronic) Receipt
Jan 4, 2018
Letter accompanying subsequently filed items
Jan 4, 2018
Notice of appeal
Dec 13, 2017
Advice of delivery
Dec 1, 2017
Advice of delivery
Nov 24, 2017
Advice of delivery
Nov 16, 2017
(Electronic) Receipt
Nov 16, 2017
Advice of delivery
Nov 16, 2017
Letter accompanying subsequently filed items
Nov 15, 2017
Advice of delivery
Nov 14, 2017
Advice of delivery
Nov 10, 2017
Acknowledgement of a document
Nov 10, 2017
Acknowledgement of a document
Nov 10, 2017
Acknowledgement of a document
Nov 10, 2017
Annex to the communication - opposition
Nov 10, 2017
Decision of the Opposition Division and instruction
Nov 10, 2017
Decision rejecting the opposition
Nov 10, 2017
Grounds for the decision (Annex) - opposition
Nov 10, 2017
Internal form - Opposition/addressees
Nov 10, 2017
Internal form - Opposition/addressees
Nov 10, 2017
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 10, 2017
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 10, 2017
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 10, 2017
Provision of a copy of the minutes - opposition procedure
Sep 11, 2017
Information about the result of oral proceedings
Sep 7, 2017
Letter regarding the opposition procedure (no time limit)
Sep 5, 2017
Brief communication - Opposition proceedings
Sep 5, 2017
Brief communication - Opposition proceedings
Sep 1, 2017
Letter regarding the opposition procedure (no time limit)
Aug 4, 2017
Brief communication - Opposition proceedings
Aug 4, 2017
Brief communication - Opposition proceedings
Jul 31, 2017
Brief communication - Opposition proceedings
Jul 31, 2017
Brief communication - Opposition proceedings
Jul 26, 2017
Any annexes (other than citation) to an opposition letter
Jul 26, 2017
Letter regarding the opposition procedure (no time limit)
Jul 24, 2017
Letter regarding the opposition procedure (no time limit)
Jul 17, 2017
Brief communication - Opposition proceedings
Jul 17, 2017
Brief communication - Opposition proceedings
Jul 17, 2017
Brief communication - Opposition proceedings
Jul 12, 2017
Brief communication - Opposition proceedings
Jul 12, 2017
Brief communication - Opposition proceedings
Jul 12, 2017
Brief communication - Opposition proceedings
Jul 11, 2017
(Electronic) Receipt
Jul 11, 2017
Citation in opposition procedure
Jul 11, 2017
Citation in opposition procedure
Jul 11, 2017
Letter accompanying subsequently filed items
Jul 11, 2017
Letter regarding the opposition procedure (no time limit)
Jul 10, 2017
(Electronic) Receipt
Jul 10, 2017
Citation in opposition procedure
Jul 10, 2017
Letter accompanying subsequently filed items
Jul 10, 2017
Letter regarding the opposition procedure (no time limit)
Jul 7, 2017
(Electronic) Receipt
Jul 7, 2017
Letter accompanying subsequently filed items
Jul 7, 2017
Letter regarding the opposition procedure (no time limit)
Jul 5, 2017
Any annexes (other than citation) to an opposition letter
Jul 5, 2017
Citation in opposition procedure
Jul 5, 2017
Citation in opposition procedure
Jul 5, 2017
Citation in opposition procedure
Jul 5, 2017
Claims
Jul 5, 2017
Letter regarding the opposition procedure (no time limit)
Jul 4, 2017
Any annexes (other than citation) to an opposition letter
Jul 4, 2017
Citation in opposition procedure
Jul 4, 2017
Citation in opposition procedure
Jul 4, 2017
Citation in opposition procedure
Jul 4, 2017
Claims
Jul 4, 2017
Letter regarding the opposition procedure (no time limit)
Dec 16, 2016
Advice of delivery
Dec 14, 2016
Advice of delivery
Dec 14, 2016
Advice of delivery
Dec 14, 2016
Brief communication - Opposition proceedings
Dec 14, 2016
Brief communication - Opposition proceedings
Dec 12, 2016
(Electronic) Receipt
Dec 12, 2016
Advice of delivery
Dec 12, 2016
Letter accompanying subsequently filed items
Dec 12, 2016
Letter regarding the opposition procedure (no time limit)
Dec 9, 2016
Advice of delivery
Dec 9, 2016
Letter regarding the opposition procedure (no time limit)
Dec 8, 2016
Advice of delivery
Dec 2, 2016
Acknowledgement of a document
Dec 2, 2016
Acknowledgement of a document
Dec 2, 2016
Acknowledgement of a document
Dec 2, 2016
Annex to the communication - opposition
Dec 2, 2016
Information concerning oral proceedings
Dec 2, 2016
Preparation for oral proceedings
Dec 2, 2016
Summons to attend oral proceedings
Dec 2, 2016
Summons to attend oral proceedings
Dec 2, 2016
Summons to attend oral proceedings
Aug 3, 2016
Brief communication - Opposition proceedings
Aug 3, 2016
Brief communication - Opposition proceedings
Jul 25, 2016
Brief communication - Opposition proceedings
Jul 25, 2016
Brief communication - Opposition proceedings
Jul 22, 2016
Any annexes (other than citation) to an opposition letter
Jul 22, 2016
Claims
Jul 22, 2016
Claims
Jul 22, 2016
Claims
Jul 22, 2016
Claims
Jul 22, 2016
Claims
Jul 22, 2016
Claims
Jul 22, 2016
Claims
Jul 22, 2016
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Jul 22, 2016
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Jul 22, 2016
Claims
Jul 22, 2016
Claims
Jul 22, 2016
Claims
Jul 22, 2016
Claims
Jul 22, 2016
Claims
Jul 22, 2016
Claims
Jul 22, 2016
Reply of the patent proprietor to the notice(s) of opposition
Jul 19, 2016
(Electronic) Receipt
Jul 19, 2016
Any annexes (other than citation) to an opposition letter
Jul 19, 2016
Any annexes (other than citation) to an opposition letter
Jul 19, 2016
Claims
Jul 19, 2016
Claims
Jul 19, 2016
Claims
Jul 19, 2016
Claims
Jul 19, 2016
Claims
Jul 19, 2016
Claims
Jul 19, 2016
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Jul 19, 2016
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Jul 19, 2016
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Jul 19, 2016
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Jul 19, 2016
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Jul 19, 2016
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Jul 19, 2016
Claims
Jul 19, 2016
Claims
Jul 19, 2016
Claims
Jul 19, 2016
Letter accompanying subsequently filed items
Jul 19, 2016
Reply of the patent proprietor to the notice(s) of opposition
Jul 19, 2016
Reply of the patent proprietor to the notice(s) of opposition
Jun 13, 2016
Brief communication - Opposition proceedings
Jun 13, 2016
Brief communication - Opposition proceedings
Jun 13, 2016
Grant of extension of time limit (opposition procedure)
Jun 8, 2016
Request for extension of time limit
Apr 25, 2016
Brief communication - Opposition proceedings
Apr 25, 2016
Brief communication - Opposition proceedings
Apr 15, 2016
(Electronic) Receipt
Apr 15, 2016
Letter accompanying subsequently filed items
Apr 15, 2016
Letter regarding the opposition procedure (no time limit)
Apr 15, 2016
Non-patent literature cited during the opposition procedure
Mar 23, 2016
Brief communication - Opposition proceedings
Mar 23, 2016
Brief communication - Opposition proceedings
Mar 18, 2016
Letter regarding the opposition procedure (no time limit)
Mar 18, 2016
Non-patent literature cited during the examination procedure
Mar 15, 2016
Letter regarding the opposition procedure (no time limit)
Mar 15, 2016
Non-patent literature cited during the opposition procedure
Feb 19, 2016
Brief communication - Opposition proceedings
Feb 19, 2016
Brief communication - Opposition proceedings
Feb 18, 2016
Brief communication - Opposition proceedings
Feb 12, 2016
Communication of a notice of opposition and request to file observations
Feb 12, 2016
Notice of further oppositions to opponent(s)
Feb 12, 2016
Notice of further oppositions to opponent(s)
Feb 11, 2016
Letter regarding the opposition procedure (no time limit)
Feb 10, 2016
Letter regarding the opposition procedure (no time limit)
Feb 5, 2016
Communication of a notice of opposition - first information to patent proprietor
Jan 7, 2016
(Electronic) Receipt
Jan 7, 2016
Letter accompanying subsequently filed items
Jan 7, 2016
Non-patent literature cited during the opposition procedure
Jan 7, 2016
Non-patent literature cited during the opposition procedure
Jan 7, 2016
Non-patent literature cited during the opposition procedure
Jan 7, 2016
Non-patent literature cited during the opposition procedure
Jan 7, 2016
Non-patent literature cited during the opposition procedure
Jan 7, 2016
Non-patent literature cited during the opposition procedure
Jan 7, 2016
Non-patent literature cited during the opposition procedure
Jan 7, 2016
Notice of opposition
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
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Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
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Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Jan 7, 2016
Patent document cited during the opposition procedure
Dec 23, 2015
(Electronic) Receipt
Dec 23, 2015
Non-patent literature cited during the opposition procedure
Dec 23, 2015
Non-patent literature cited during the opposition procedure
Dec 23, 2015
Non-patent literature cited during the opposition procedure
Dec 23, 2015
Non-patent literature cited during the opposition procedure
Dec 23, 2015
Non-patent literature cited during the opposition procedure
Dec 23, 2015
Notice of opposition
Dec 23, 2015
Notice of opposition
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
Patent document cited during the opposition procedure
Dec 23, 2015
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EP2705020

JOSEF MEISSNER

Application Number: EP12723831A
Filing Date: May 18, 2012
Status: Patent Maintained As Amended; Oct 3, 2025
Publication Date: Nov 5, 2025
External Links: Slate, Register , Google Patents

IP Verse

Method And Apparatus For Purifying Nitration Products

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP2705020