Process For Tertiary Mineral Oil Production

Patent No. EP2920270 (titled "Process For Tertiary Mineral Oil Production") was filed by Basf on Nov 6, 2013. The application was issued on May 30, 2018.

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
KEMIRA OYJ	Feb 28, 2019	SANTARELLI
SNF	Feb 22, 2019	HOFFMANN EITLE

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

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Jan 30, 2026
Annex to the communication - opposition
Jan 30, 2026
Brief communication - Opposition proceedings
Jan 30, 2026
Brief communication - Opposition proceedings
Jan 30, 2026
Brief communication - Opposition proceedings
Jan 30, 2026
Decision of the Opposition Division and instruction
Jan 30, 2026
Druckexemplar in opposition procedure
Jan 30, 2026
Grounds for the decision (Annex) - opposition
Jan 30, 2026
Interlocutory decision in opposition proceedings
Jan 30, 2026
Interlocutory decision in opposition proceedings
Jan 30, 2026
Interlocutory decision in opposition proceedings
Jan 30, 2026
Means of redress
Jan 30, 2026
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jan 30, 2026
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jan 30, 2026
Provision of a copy of the minutes - opposition procedure
Jan 30, 2026
Provision of a copy of the minutes - opposition procedure
Jan 30, 2026
Provision of a copy of the minutes - opposition procedure
Jan 30, 2026
Scanned annex to a communication - opposition procedure
Jan 13, 2026
Information about the result of oral proceedings
Nov 18, 2025
Brief communication - Opposition proceedings
Nov 18, 2025
Brief communication - Opposition proceedings
Nov 18, 2025
Brief communication - Opposition proceedings
Nov 18, 2025
Brief communication - Opposition proceedings
Nov 13, 2025
(Electronic) Receipt
Nov 13, 2025
(Electronic) Receipt
Nov 13, 2025
(Electronic) Receipt
Nov 13, 2025
Citation in opposition procedure - 012
Nov 13, 2025
Citation in opposition procedure - 022
Nov 13, 2025
Citation in opposition procedure - 023
Nov 13, 2025
Citation in opposition procedure - 024
Nov 13, 2025
Consolidated list of cited opposition documents
Nov 13, 2025
Letter accompanying subsequently filed items
Nov 13, 2025
Letter accompanying subsequently filed items
Nov 13, 2025
Request for interpreters during oral proceedings
Nov 13, 2025
Request for interpreters during oral proceedings
Nov 13, 2025
Written submission in preparation to/during oral proceedings
Nov 13, 2025
Written submission in preparation to/during oral proceedings
Apr 28, 2025
Annex to the communication - opposition
Apr 28, 2025
Information concerning oral proceedings
Apr 28, 2025
Scanned annex to a communication - opposition procedure
Apr 28, 2025
Summons to attend oral proceedings
Apr 28, 2025
Summons to attend oral proceedings
Apr 28, 2025
Summons to attend oral proceedings
Feb 17, 2025
Decision of the Board of Appeal
Feb 17, 2025
Decision of the Board of Appeal
Feb 17, 2025
F3032 Notification(s) of the decision
Feb 17, 2025
F3032 Notification(s) of the decision
Feb 17, 2025
F3032 Notification(s) of the decision
Jan 21, 2025
F3013 Oral Proceedings: Forwarding minutes
Jan 21, 2025
F3013 Oral Proceedings: Forwarding minutes
Jan 21, 2025
F3013 Oral Proceedings: Forwarding minutes
Jan 21, 2025
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
Jan 21, 2025
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
Dec 18, 2024
F3345 Forwarding of submissions to parties
Dec 18, 2024
F3345 Forwarding of submissions to parties
Dec 12, 2024
(Electronic) Receipt
Dec 12, 2024
Request for interpreters during oral proceedings
Dec 11, 2024
F3018 Oral proceedings: Confirmation interpreters
Dec 11, 2024
F3018 Oral proceedings: Confirmation interpreters
Dec 11, 2024
F3018 Oral proceedings: Confirmation interpreters
Dec 11, 2024
F3345 Forwarding of submissions to parties
Dec 11, 2024
F3345 Forwarding of submissions to parties
Dec 5, 2024
(Electronic) Receipt
Dec 5, 2024
Letter accompanying subsequently filed items
Dec 5, 2024
Request for interpreters during oral proceedings
Oct 11, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 11, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Sep 13, 2024
F3345 Forwarding of submissions to parties
Sep 13, 2024
F3345 Forwarding of submissions to parties
Sep 10, 2024
(Electronic) Receipt
Sep 10, 2024
Letter accompanying subsequently filed items
Sep 10, 2024
Letter dealing with oral proceedings during the appeal procedure
May 10, 2024
F3345 Forwarding of submissions to parties
May 10, 2024
F3345 Forwarding of submissions to parties
May 6, 2024
(Electronic) Receipt
May 6, 2024
Authorisation
May 6, 2024
Letter accompanying subsequently filed items
Apr 29, 2024
(Electronic) Receipt
Apr 29, 2024
Letter accompanying subsequently filed items
Apr 18, 2024
F3011.2 Oral Proceedings: Summons VICO
Apr 18, 2024
F3011.2 Oral Proceedings: Summons VICO
Apr 18, 2024
F3011.2 Oral Proceedings: Summons VICO
Apr 15, 2024
F3010 Oral proceedings: order for summons
Apr 15, 2024
F3303.16 Change of composition of the Board (T)
Feb 22, 2024
Composition of the board (T)
Feb 7, 2024
F3056 Communication: Change of Board due to the technical nature of the appeal
Feb 7, 2024
F3056 Communication: Change of Board due to the technical nature of the appeal
Feb 7, 2024
F3056 Communication: Change of Board due to the technical nature of the appeal
Feb 2, 2024
F3313 Order: change of Board due to the technical aspects of the appeal
Jan 11, 2023
F3345 Forwarding of submissions to parties
Jan 11, 2023
F3345 Forwarding of submissions to parties
Jan 5, 2023
(Electronic) Receipt
Jan 5, 2023
Letter accompanying subsequently filed items
Jan 5, 2023
Reply to appeal
Dec 23, 2022
F3345 Forwarding of submissions to parties
Dec 23, 2022
F3345 Forwarding of submissions to parties
Dec 20, 2022
(Electronic) Receipt
Dec 20, 2022
Annexes (other than cited documents) regarding appeal procedure
Dec 20, 2022
Cited document during appeal procedure
Dec 20, 2022
Cited document during appeal procedure
Dec 20, 2022
Letter accompanying subsequently filed items
Dec 20, 2022
Reply to appeal
Aug 26, 2022
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Aug 26, 2022
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Aug 22, 2022
(Electronic) Receipt
Aug 22, 2022
Citation in appeal procedure - 023
Aug 22, 2022
Letter accompanying subsequently filed items
Aug 22, 2022
Statement of grounds of appeal
Jul 21, 2022
Annex to the communication - opposition
Jul 21, 2022
Brief communication - Opposition proceedings
Jul 21, 2022
Brief communication - Opposition proceedings
Jul 21, 2022
Brief communication - Opposition proceedings
Jul 19, 2022
Brief communication - Opposition proceedings
Jul 19, 2022
Brief communication - Opposition proceedings
Jul 13, 2022
(Electronic) Receipt
Jul 13, 2022
Letter accompanying subsequently filed items
Jul 13, 2022
Request for correction
Jun 28, 2022
F3345 Forwarding of submissions to parties
Jun 28, 2022
F3345 Forwarding of submissions to parties
Jun 23, 2022
(Electronic) Receipt
Jun 23, 2022
Letter accompanying subsequently filed items
Jun 23, 2022
Letter relating to Appeal Procedure
Jun 22, 2022
F3204 Communication of the file number to the parties
Jun 22, 2022
F3204 Communication of the file number to the parties
Jun 22, 2022
F3204 Communication of the file number to the parties
Jun 14, 2022
(Electronic) Receipt
Jun 14, 2022
Letter accompanying subsequently filed items
Jun 14, 2022
Notice of appeal
Apr 22, 2022
Advice of delivery
Apr 21, 2022
(Electronic) Receipt
Apr 21, 2022
Advice of delivery
Apr 21, 2022
Letter accompanying subsequently filed items
Apr 19, 2022
Advice of delivery
Apr 14, 2022
Decision of the Opposition Division and instruction
Apr 14, 2022
Decision revoking the European patent
Apr 14, 2022
Decision revoking the European patent
Apr 14, 2022
Decision revoking the European patent
Apr 14, 2022
Grounds for the decision (Annex) - opposition
Apr 14, 2022
Means of redress
Apr 14, 2022
Transmittal of decision / summons - opposition
Apr 14, 2022
Transmittal of decision / summons - opposition
Apr 14, 2022
Transmittal of decision / summons - opposition
Apr 13, 2022
Annex to the communication - opposition
Apr 13, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 13, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 13, 2022
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 13, 2022
Provision of a copy of the minutes - opposition procedure
Apr 13, 2022
Provision of a copy of the minutes - opposition procedure
Apr 13, 2022
Provision of a copy of the minutes - opposition procedure
Apr 1, 2022
(Electronic) Receipt
Apr 1, 2022
Letter accompanying subsequently filed items
Apr 1, 2022
Letter regarding the opposition procedure (no time limit)
Sep 8, 2021
(Electronic) Receipt
Sep 8, 2021
Letter accompanying subsequently filed items
Sep 8, 2021
Oral proceedings: reply to date proposed
Sep 2, 2021
Brief communication - Opposition proceedings
Sep 2, 2021
Brief communication - Opposition proceedings
Aug 25, 2021
(Electronic) Receipt
Aug 25, 2021
Letter accompanying subsequently filed items
Aug 25, 2021
Written submission in preparation to/during oral proceedings
Aug 24, 2021
Brief communication - Opposition proceedings
Aug 24, 2021
Brief communication - Opposition proceedings
Aug 24, 2021
Brief communication - Opposition proceedings
Aug 2, 2021
Brief communication - Opposition proceedings
Aug 2, 2021
Brief communication - Opposition proceedings
Aug 2, 2021
Brief communication - Opposition proceedings
Jul 15, 2021
Brief communication - Opposition proceedings
Jul 14, 2021
Brief communication - Opposition proceedings
Jul 14, 2021
Brief communication - Opposition proceedings
Jul 8, 2021
(Electronic) Receipt
Jul 8, 2021
(Electronic) Receipt
Jul 8, 2021
(Electronic) Receipt
Jul 8, 2021
(Electronic) Receipt
Jul 8, 2021
Citation in opposition procedure - 025
Jul 8, 2021
Letter accompanying subsequently filed items
Jul 8, 2021
Letter accompanying subsequently filed items
Jul 8, 2021
Letter accompanying subsequently filed items
Jul 8, 2021
Oral proceedings: reply to date proposed
Jul 8, 2021
Request for interpreters during oral proceedings
Jul 8, 2021
Written submission in preparation to/during oral proceedings
Jul 2, 2021
(Electronic) Receipt
Jul 2, 2021
Letter accompanying subsequently filed items
Apr 15, 2021
Notification concerning the date of oral proceedings
Apr 15, 2021
Notification concerning the date of oral proceedings
Apr 15, 2021
Notification concerning the date of oral proceedings
Dec 8, 2020
(Electronic) Receipt
Dec 8, 2020
Advice of delivery
Dec 1, 2020
Advice of delivery
Nov 30, 2020
(Electronic) Receipt
Nov 30, 2020
Advice of delivery
Nov 30, 2020
Letter accompanying subsequently filed items
Nov 24, 2020
Acknowledgement of a document
Nov 24, 2020
Acknowledgement of a document
Nov 24, 2020
Acknowledgement of a document
Nov 24, 2020
Annex to the communication - opposition
Nov 24, 2020
Information concerning oral proceedings
Nov 24, 2020
Summons to attend oral proceedings
Nov 24, 2020
Summons to attend oral proceedings
Nov 24, 2020
Summons to attend oral proceedings
Oct 12, 2020
Notification concerning the date of oral proceedings
Oct 12, 2020
Notification concerning the date of oral proceedings
Oct 12, 2020
Notification concerning the date of oral proceedings
Oct 8, 2020
Brief communication - Opposition proceedings
Oct 8, 2020
Brief communication - Opposition proceedings
Oct 8, 2020
Brief communication - Opposition proceedings
Oct 8, 2020
Brief communication - Opposition proceedings
Oct 8, 2020
Brief communication - Opposition proceedings
Oct 8, 2020
Brief communication - Opposition proceedings
Oct 2, 2020
(Electronic) Receipt
Oct 2, 2020
(Electronic) Receipt
Oct 2, 2020
(Electronic) Receipt
Oct 2, 2020
(Electronic) Receipt
Oct 2, 2020
Citation in opposition procedure - 020
Oct 2, 2020
Citation in opposition procedure - 021
Oct 2, 2020
Letter accompanying subsequently filed items
Oct 2, 2020
Letter accompanying subsequently filed items
Oct 2, 2020
Letter accompanying subsequently filed items
Oct 2, 2020
Letter accompanying subsequently filed items
Oct 2, 2020
Oral proceedings: reply to date proposed
Oct 2, 2020
Oral proceedings: reply to date proposed
Oct 2, 2020
Written submission in preparation to/during oral proceedings
Oct 2, 2020
Written submission in preparation to/during oral proceedings
Jul 28, 2020
Notification concerning the date of oral proceedings
Jul 28, 2020
Notification concerning the date of oral proceedings
Jul 28, 2020
Notification concerning the date of oral proceedings
Jul 24, 2020
Brief communication - Opposition proceedings
Jul 24, 2020
Brief communication - Opposition proceedings
Jul 17, 2020
(Electronic) Receipt
Jul 17, 2020
Auxiliary request during Opposition procedure - 01
Jul 17, 2020
Auxiliary request during Opposition procedure - 01
Jul 17, 2020
Auxiliary request during Opposition procedure - 02
Jul 17, 2020
Auxiliary request during Opposition procedure - 02
Jul 17, 2020
Auxiliary request during Opposition procedure - 03
Jul 17, 2020
Auxiliary request during Opposition procedure - 03
Jul 17, 2020
Auxiliary request during Opposition procedure - 04
Jul 17, 2020
Auxiliary request during Opposition procedure - 04
Jul 17, 2020
Auxiliary request during Opposition procedure - 05
Jul 17, 2020
Auxiliary request during Opposition procedure - 05
Jul 17, 2020
Auxiliary request during Opposition procedure - 06
Jul 17, 2020
Auxiliary request during Opposition procedure - 06
Jul 17, 2020
Auxiliary request during Opposition procedure - 07
Jul 17, 2020
Auxiliary request during Opposition procedure - 07
Jul 17, 2020
Auxiliary request during Opposition procedure - 08
Jul 17, 2020
Auxiliary request during Opposition procedure - 08
Jul 17, 2020
Auxiliary request during Opposition procedure - 09
Jul 17, 2020
Auxiliary request during Opposition procedure - 09
Jul 17, 2020
Auxiliary request during Opposition procedure - 10
Jul 17, 2020
Auxiliary request during Opposition procedure - 10
Jul 17, 2020
Auxiliary request during Opposition procedure - 11
Jul 17, 2020
Auxiliary request during Opposition procedure - 11
Jul 17, 2020
Auxiliary request during Opposition procedure - 12
Jul 17, 2020
Auxiliary request during Opposition procedure - 12
Jul 17, 2020
Auxiliary request during Opposition procedure - 13
Jul 17, 2020
Auxiliary request during Opposition procedure - 13
Jul 17, 2020
Auxiliary request during Opposition procedure - 14
Jul 17, 2020
Auxiliary request during Opposition procedure - 14
Jul 17, 2020
Auxiliary request during Opposition procedure - 15
Jul 17, 2020
Auxiliary request during Opposition procedure - 15
Jul 17, 2020
Letter accompanying subsequently filed items
Jul 17, 2020
Main request during Opposition procedure
Jul 17, 2020
Main request during Opposition procedure
Jul 17, 2020
Written submission in preparation to/during oral proceedings
Jan 30, 2020
Advice of delivery
Jan 27, 2020
Advice of delivery
Jan 27, 2020
Advice of delivery
Jan 24, 2020
Acknowledgement of a document
Jan 24, 2020
Acknowledgement of a document
Jan 24, 2020
Acknowledgement of a document
Jan 24, 2020
Annex to the communication - opposition
Jan 24, 2020
Information concerning oral proceedings
Jan 24, 2020
Summons to attend oral proceedings
Jan 24, 2020
Summons to attend oral proceedings
Jan 24, 2020
Summons to attend oral proceedings
Jan 8, 2020
Brief communication - Opposition proceedings
Jan 8, 2020
Brief communication - Opposition proceedings
Dec 18, 2019
(Electronic) Receipt
Dec 18, 2019
Letter accompanying subsequently filed items
Dec 18, 2019
Letter regarding the opposition procedure (no time limit)
Oct 4, 2019
Brief communication - Opposition proceedings
Oct 4, 2019
Brief communication - Opposition proceedings
Sep 25, 2019
(Electronic) Receipt
Sep 25, 2019
Auxiliary request during Opposition procedure - 01
Sep 25, 2019
Auxiliary request during Opposition procedure - 01
Sep 25, 2019
Auxiliary request during Opposition procedure - 02
Sep 25, 2019
Auxiliary request during Opposition procedure - 02
Sep 25, 2019
Auxiliary request during Opposition procedure - 03
Sep 25, 2019
Auxiliary request during Opposition procedure - 03
Sep 25, 2019
Auxiliary request during Opposition procedure - 04
Sep 25, 2019
Auxiliary request during Opposition procedure - 04
Sep 25, 2019
Auxiliary request during Opposition procedure - 05
Sep 25, 2019
Auxiliary request during Opposition procedure - 05
Sep 25, 2019
Auxiliary request during Opposition procedure - 06
Sep 25, 2019
Auxiliary request during Opposition procedure - 06
Sep 25, 2019
Citation in opposition procedure - 017
Sep 25, 2019
Citation in opposition procedure - 018
Sep 25, 2019
Citation in opposition procedure - 019
Sep 25, 2019
Letter accompanying subsequently filed items
Sep 25, 2019
Main request during Opposition procedure
Sep 25, 2019
Main request during Opposition procedure
Sep 25, 2019
Reply of the patent proprietor to the notice(s) of opposition
Jul 29, 2019
Brief communication - Opposition proceedings
Jul 29, 2019
Brief communication - Opposition proceedings
Jul 29, 2019
Grant of extension of time limit (opposition procedure)
Jul 10, 2019
(Electronic) Receipt
Jul 10, 2019
Letter accompanying subsequently filed items
Jul 10, 2019
Request for extension of time limit
May 3, 2019
(Electronic) Receipt
May 3, 2019
Letter accompanying subsequently filed items
May 3, 2019
Letter regarding the opposition procedure (no time limit)
Mar 15, 2019
Communication of a notice of opposition and request to file observations
Mar 15, 2019
Notice of further oppositions to opponent(s)
Mar 15, 2019
Notice of further oppositions to opponent(s)
Mar 15, 2019
Request for the date of publication in citations
Mar 8, 2019
Communication of a notice of opposition - first information to patent proprietor
Mar 7, 2019
Communication of a notice of opposition - first information to patent proprietor
Feb 28, 2019
(Electronic) Receipt
Feb 28, 2019
Citation in opposition procedure - 005
Feb 28, 2019
Citation in opposition procedure - 006
Feb 28, 2019
Citation in opposition procedure - 007
Feb 28, 2019
Citation in opposition procedure - 008
Feb 28, 2019
Citation in opposition procedure - 009
Feb 28, 2019
Citation in opposition procedure - 010
Feb 28, 2019
Citation in opposition procedure - 011
Feb 28, 2019
Citation in opposition procedure - 012
Feb 28, 2019
Citation in opposition procedure - 013
Feb 28, 2019
Citation in opposition procedure - 014
Feb 28, 2019
Citation in opposition procedure - 015
Feb 28, 2019
Citation in opposition procedure - 016
Feb 28, 2019
Citation in opposition procedure - 016
Feb 28, 2019
Notice of opposition
Feb 28, 2019
Notice of opposition
Feb 22, 2019
(Electronic) Receipt
Feb 22, 2019
Citation in opposition procedure - 001
Feb 22, 2019
Citation in opposition procedure - 002
Feb 22, 2019
Citation in opposition procedure - 003
Feb 22, 2019
Citation in opposition procedure - 004
Feb 22, 2019
Notice of opposition
Feb 22, 2019
Notice of opposition
Jun 11, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
May 4, 2018
Decision to grant a European patent
Apr 20, 2018
(Electronic) Receipt
Apr 20, 2018
French translation of claims
Apr 20, 2018
German translation of the claims
Apr 20, 2018
Letter accompanying subsequently filed items
Jan 5, 2018
Bibliographic data of the European patent application
Jan 5, 2018
Communication about intention to grant a European patent
Jan 5, 2018
Intention to grant (signatures)
Jan 5, 2018
Text intended for grant (clean copy)
Jan 5, 2018
Text intended for grant (version for approval)
Nov 13, 2017
(Electronic) Receipt
Nov 13, 2017
Abstract
Nov 13, 2017
Abstract
Nov 13, 2017
Amended description with annotations
Nov 13, 2017
Description
Nov 13, 2017
Letter accompanying subsequently filed items
Nov 13, 2017
Reply to communication from the Examining Division
Sep 25, 2017
Annex to the communication
Sep 25, 2017
Communication from the Examining Division
Feb 15, 2017
CDS Clean up - amended data concerning the representative of the applicant (Association)
Feb 15, 2017
Submission concerning representation
Aug 2, 2016
(Electronic) Receipt
Aug 2, 2016
Amended claims with annotations
Aug 2, 2016
Claims
Aug 2, 2016
Letter accompanying subsequently filed items
Aug 2, 2016
Reply to communication from the Examining Division
May 24, 2016
Annex to the communication
May 24, 2016
Communication from the Examining Division
May 18, 2016
Examination started
Mar 16, 2016
Communication of amended entries concerning the representative
Mar 10, 2016
Submission concerning change of applicant's representative
Mar 3, 2016
CDS Clean up - amended applicant details
Mar 3, 2016
Submission concerning change of applicant's address
Dec 1, 2015
(Electronic) Receipt
Dec 1, 2015
Letter accompanying subsequently filed items
Dec 1, 2015
Reply to Written Opinion prepared by the EPO
Aug 26, 2015
Notification on forthcoming publication of bibliographic data
Jun 26, 2015
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Jun 24, 2015
Communication to designated inventor
Jun 24, 2015
Communication to designated inventor
Jun 24, 2015
Communication to designated inventor
Jun 24, 2015
Communication to designated inventor
Jun 19, 2015
Priority search results copy provided by EPO
Jun 1, 2015
Copy of the international preliminary report on patentability
May 11, 2015
(Electronic) Receipt
May 11, 2015
Request for entry into the European phase
Mar 27, 2015
Information on entry into European phase
Jun 12, 2014
Priority document (electronically transmitted)
May 22, 2014
Copy of the international search report
May 22, 2014
Published international application - A1
Mar 20, 2014
Notification of the recording of a change
Nov 20, 2013
Written opinion of the ISA, boxes No. I to VIII
Nov 20, 2013
Written opinion of the ISA, cover sheet
Nov 20, 2013
Written opinion of the ISA, supplemental box
Nov 6, 2013
(Electronic) Receipt
Nov 6, 2013
Abstract
Nov 6, 2013
Claims
Nov 6, 2013
Description
Nov 6, 2013
Drawings
Nov 6, 2013
Priority document (RO-procedure)

EP2920270

BASF

Application Number: EP13786276A
Filing Date: Nov 6, 2013
Status: Granted And Under Opposition; Apr 27, 2018
Publication Date: May 30, 2018
External Links: Slate, Register , Google Patents

IP Verse

Process For Tertiary Mineral Oil Production

Patent Summary

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Patent Oppositions (2)

Dossier Documents

EP2920270