Melt Polycarbonate Having Improved Heat Ageing

Patent No. EP2552995 (titled "Melt Polycarbonate Having Improved Heat Ageing") was filed by Bayer on Mar 28, 2011. The application was issued on Jan 5, 2022.

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
SABIC	Sep 2, 2016	TERPSMA

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

Dec 10, 2021
Brief communication - Opposition proceedings
Dec 9, 2021
Decision to maintain the European patent in amended form
Dec 9, 2021
Decision to maintain the European patent in amended form
Dec 7, 2021
Termination of the opposition proceedings with maintenance of patent
Nov 24, 2021
(Electronic) Receipt
Nov 24, 2021
Filing of the translation of the amended claims
Nov 24, 2021
French translation of claims
Nov 24, 2021
German translation of the claims
Nov 24, 2021
Letter accompanying subsequently filed items
Sep 30, 2021
Communication of bibliographic data
Sep 30, 2021
Communication to opponent concerning maintenance
Sep 30, 2021
Communication with request to file translations
Sep 29, 2021
Refund of fees
Sep 27, 2021
(Electronic) Receipt
Sep 27, 2021
Advice of delivery
Sep 27, 2021
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Sep 27, 2021
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Sep 27, 2021
Letter accompanying subsequently filed items
Sep 27, 2021
Maintenance of the patent with the documents specified in the final decision
Sep 24, 2021
(Electronic) Receipt
Sep 24, 2021
F3017 Oral Proceedings: Notification of cancellation/postponing
Sep 24, 2021
F3017 Oral Proceedings: Notification of cancellation/postponing
Sep 24, 2021
Letter accompanying subsequently filed items
Sep 21, 2021
(Electronic) Receipt
Sep 21, 2021
F3014 Oral Proceedings: Order cancelling/postponing
Sep 21, 2021
Letter accompanying subsequently filed items
Sep 21, 2021
Withdrawal of an appeal
Sep 16, 2021
F3345 Forwarding of submissions to parties
Sep 13, 2021
(Electronic) Receipt
Sep 13, 2021
Letter accompanying subsequently filed items
Sep 13, 2021
Letter accompanying subsequently filed items
Sep 13, 2021
Letter dealing with oral proceedings during the appeal procedure
Sep 2, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Sep 2, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jul 30, 2021
F3345 Forwarding of submissions to parties
Jul 27, 2021
(Electronic) Receipt
Jul 27, 2021
Letter accompanying subsequently filed items
Jul 27, 2021
Oral proceedings: reply to date proposed
Jul 26, 2021
F3345 Forwarding of submissions to parties
Jul 21, 2021
(Electronic) Receipt
Jul 21, 2021
Letter accompanying subsequently filed items
Jul 21, 2021
Oral proceedings: reply to date proposed
Jul 20, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jul 20, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Dec 1, 2020
(Electronic) Receipt
Dec 1, 2020
Advice of delivery
Dec 1, 2020
Letter accompanying subsequently filed items
Nov 27, 2020
(Electronic) Receipt
Nov 27, 2020
Advice of delivery
Nov 27, 2020
Letter accompanying subsequently filed items
Nov 16, 2020
F3011.1 Oral Proceedings: summons
Nov 16, 2020
F3011.1 Oral Proceedings: summons
Nov 11, 2020
F3010 Oral proceedings: order for summons
Nov 10, 2020
F3303.16 Change of composition of the Board (T)
Oct 1, 2020
(Electronic) Receipt
Oct 1, 2020
(Electronic) Receipt
Oct 1, 2020
Advice of delivery
Oct 1, 2020
Advice of delivery
Oct 1, 2020
Letter accompanying subsequently filed items
Oct 1, 2020
Letter accompanying subsequently filed items
Sep 21, 2020
F3017 Oral Proceedings: Notification of cancellation/postponing
Sep 21, 2020
F3017 Oral Proceedings: Notification of cancellation/postponing
Sep 16, 2020
F3014 Oral Proceedings: Order cancelling/postponing
Sep 11, 2020
F3345 Forwarding of submissions to parties
Sep 7, 2020
(Electronic) Receipt
Sep 7, 2020
Letter accompanying subsequently filed items
Sep 7, 2020
Oral proceedings: reply to date proposed
Jun 24, 2020
(Electronic) Receipt
Jun 24, 2020
Advice of delivery
Jun 24, 2020
Letter accompanying subsequently filed items
Jun 15, 2020
Advice of delivery
Jun 8, 2020
F3011.1 Oral Proceedings: summons
Jun 8, 2020
F3011.1 Oral Proceedings: summons
Jun 3, 2020
F3010 Oral proceedings: order for summons
Dec 19, 2018
F3345 Forwarding of submissions to parties
Dec 14, 2018
(Electronic) Receipt
Dec 14, 2018
Letter accompanying subsequently filed items
Dec 14, 2018
Reply to appeal
Nov 21, 2018
Composition of the board (T)
Aug 20, 2018
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Aug 14, 2018
(Electronic) Receipt
Aug 14, 2018
Claims
Aug 14, 2018
Claims
Aug 14, 2018
Claims
Aug 14, 2018
Claims
Aug 14, 2018
Claims
Aug 14, 2018
Letter accompanying subsequently filed items
Aug 14, 2018
Statement of grounds of appeal
Jun 27, 2018
Refund of fees
Jun 15, 2018
F3204 Communication of the file number to the parties
Jun 15, 2018
F3204 Communication of the file number to the parties
Jun 8, 2018
(Electronic) Receipt
Jun 8, 2018
Letter accompanying subsequently filed items
Jun 8, 2018
Notice of appeal
Jun 8, 2018
Processing of an appeal
Apr 24, 2018
Advice of delivery
Apr 24, 2018
Advice of delivery
Apr 18, 2018
(Electronic) Receipt
Apr 18, 2018
Advice of delivery
Apr 18, 2018
Letter accompanying subsequently filed items
Apr 13, 2018
Advice of delivery
Apr 10, 2018
Acknowledgement of a document
Apr 10, 2018
Acknowledgement of a document
Apr 10, 2018
Annex to the communication - opposition
Apr 10, 2018
Decision of the Opposition Division and instruction
Apr 10, 2018
Druckexemplar in opposition procedure
Apr 10, 2018
Grounds for the decision (Annex) - opposition
Apr 10, 2018
Interlocutory decision in opposition proceedings
Apr 10, 2018
Internal form - Opposition/addressees
Apr 10, 2018
Internal form - Opposition/addressees
Apr 10, 2018
Means of redress
Apr 10, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 10, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 10, 2018
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 10, 2018
Provision of a copy of the minutes - opposition procedure
Apr 10, 2018
Scanned annex to a communication - opposition procedure
Mar 16, 2018
Information about the result of oral proceedings
Feb 22, 2018
Brief communication - Opposition proceedings
Feb 16, 2018
(Electronic) Receipt
Feb 16, 2018
Citation in opposition procedure
Feb 16, 2018
Letter accompanying subsequently filed items
Feb 16, 2018
Written submission in preparation to/during oral proceedings
Jan 23, 2018
Brief communication - Opposition proceedings
Jan 23, 2018
Brief communication - Opposition proceedings
Jan 19, 2018
Brief communication - Opposition proceedings
Jan 16, 2018
(Electronic) Receipt
Jan 16, 2018
(Electronic) Receipt
Jan 16, 2018
Advice of delivery
Jan 16, 2018
Brief communication - Opposition proceedings
Jan 16, 2018
Brief communication - Opposition proceedings
Jan 16, 2018
Letter accompanying subsequently filed items
Jan 16, 2018
Letter accompanying subsequently filed items
Jan 16, 2018
Written submission in preparation to/during oral proceedings
Jan 16, 2018
Written submission in preparation to/during oral proceedings
Jan 12, 2018
(Electronic) Receipt
Jan 12, 2018
Letter accompanying subsequently filed items
Jan 12, 2018
Request for interpreters during oral proceedings
Jan 11, 2018
(Electronic) Receipt
Jan 11, 2018
Advice of delivery
Jan 11, 2018
Brief communication - Opposition proceedings
Jan 11, 2018
Letter accompanying subsequently filed items
Jan 6, 2018
(Electronic) Receipt
Jan 6, 2018
Letter accompanying subsequently filed items
Jan 6, 2018
Letter regarding the opposition procedure (no time limit)
Dec 28, 2017
Advice of delivery
Dec 22, 2017
Acknowledgement of a document
Dec 22, 2017
Acknowledgement of a document
Dec 22, 2017
Annex to the communication - opposition
Dec 22, 2017
Information concerning oral proceedings
Dec 22, 2017
Preparation for oral proceedings
Dec 22, 2017
Summons to attend oral proceedings
Dec 22, 2017
Summons to attend oral proceedings
Dec 11, 2017
Brief communication - Opposition proceedings
Dec 6, 2017
(Electronic) Receipt
Dec 6, 2017
Amended claims with annotations
Dec 6, 2017
Amended claims with annotations
Dec 6, 2017
Amended claims with annotations
Dec 6, 2017
Claims
Dec 6, 2017
Claims
Dec 6, 2017
Claims
Dec 6, 2017
Letter accompanying subsequently filed items
Dec 6, 2017
Reply to an examination report in opposition proceedings
Aug 7, 2017
Annex to the communication - opposition
Aug 7, 2017
Communication inviting the parties to file observations
Aug 7, 2017
Communication inviting the parties to file observations
Aug 7, 2017
Internal form - Opposition/addressees
Aug 7, 2017
Notification concerning the date of oral proceedings
Aug 7, 2017
Notification concerning the date of oral proceedings
Jul 24, 2017
Brief communication - Opposition proceedings
Jul 17, 2017
(Electronic) Receipt
Jul 17, 2017
Advice of delivery
Jul 17, 2017
Letter accompanying subsequently filed items
Jul 17, 2017
Letter regarding the opposition procedure (no time limit)
Jul 14, 2017
Advice of delivery
Jul 3, 2017
Advice of delivery
Jun 30, 2017
Acknowledgement of a document
Jun 30, 2017
Acknowledgement of a document
Jun 30, 2017
Annex to the communication - opposition
Jun 30, 2017
Information concerning oral proceedings
Jun 30, 2017
Preparation for oral proceedings
Jun 30, 2017
Summons to attend oral proceedings
Jun 30, 2017
Summons to attend oral proceedings
Oct 7, 2016
Communication of a notice of opposition and request to file observations
Oct 7, 2016
Notice of further oppositions to opponent(s)
Sep 7, 2016
Communication of a notice of opposition - first information to patent proprietor
Sep 2, 2016
(Electronic) Receipt
Sep 2, 2016
Letter accompanying subsequently filed items
Sep 2, 2016
Notice of opposition
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Sep 2, 2016
Patent document cited during the opposition procedure
Dec 3, 2015
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Nov 5, 2015
Decision to grant a European patent
Oct 15, 2015
(Electronic) Receipt
Oct 15, 2015
Filing of the translations of the claims
Oct 15, 2015
French translation of claims
Oct 15, 2015
German translation of the claims
Oct 15, 2015
Letter accompanying subsequently filed items
Sep 30, 2015
Communication of amended entries concerning the representative
Sep 30, 2015
Communication of the registration of a transfer or change of name and/or address
Sep 17, 2015
Letter relating to the automatic debiting procedure
Sep 11, 2015
Submission concerning a transfer of rights (applicant)
Aug 27, 2015
Confirmation of revocation of automatic debit order
Aug 17, 2015
Letter relating to the automatic debiting procedure
Jun 18, 2015
Bibliographic data of the European patent application
Jun 18, 2015
Communication about intention to grant a European patent
Jun 18, 2015
Intention to grant (signatures)
Jun 18, 2015
Text intended for grant (clean copy)
Jun 18, 2015
Text intended for grant (version for approval)
Jun 11, 2015
CDS Clean up - amended data concerning the representative of the applicant (Association)
Jan 14, 2015
(Electronic) Receipt
Jan 14, 2015
Description
Jan 14, 2015
Letter accompanying subsequently filed items
Jan 14, 2015
Reply to communication from the Examining Division
Sep 5, 2014
Annex to the communication
Sep 5, 2014
Communication from the Examining Division
May 16, 2014
Amended claims with annotations
May 16, 2014
Claims
May 16, 2014
Reply to communication from the Examining Division
May 14, 2014
Amended claims with annotations
May 14, 2014
Claims
May 14, 2014
Reply to communication from the Examining Division
Mar 11, 2014
Grant of extension of time limit (examination procedure)
Mar 7, 2014
Request for extension of time limit to communication from the Examining Division
Mar 5, 2014
Request for extension of time limit to communication from the Examining Division
Nov 5, 2013
Annex to the communication
Nov 5, 2013
Communication from the Examining Division
Oct 29, 2013
Examination started
Jul 16, 2013
CDS Clean up - amended data concerning the representative of the applicant (Association)
May 24, 2013
Submission concerning change of applicant's representative
May 11, 2013
Amended claims filed after receipt of (European) search report
May 11, 2013
Amendments received before examination
Jan 9, 2013
Notification on forthcoming publication of bibliographic data
Nov 30, 2012
CDS Clean up - amended data concerning the representative of the applicant (Association)
Nov 29, 2012
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Nov 29, 2012
Submission concerning representation
Nov 12, 2012
Communication to designated inventor
Nov 12, 2012
Communication to designated inventor
Nov 12, 2012
Communication to designated inventor
Nov 12, 2012
Communication to designated inventor
Nov 12, 2012
Communication to designated inventor
Nov 12, 2012
Communication to designated inventor
Nov 12, 2012
Communication to designated inventor
Oct 15, 2012
Copy of the international preliminary report on patentability
Oct 10, 2012
Notification of the recording of a change
Oct 10, 2012
Notification of the recording of a change
Sep 27, 2012
(Electronic) Receipt
Sep 27, 2012
Annex
Sep 27, 2012
Request for entry into the European phase
Aug 10, 2012
Information on entry into European phase
Oct 26, 2011
Priority document (electronically transmitted)
Oct 6, 2011
Copy of the international search report
Oct 6, 2011
Published international application - A1
Jun 29, 2011
Submission concerning representation
May 17, 2011
Written opinion of the ISA, boxes No. I to VIII
May 17, 2011
Written opinion of the ISA, cover sheet
May 17, 2011
Written opinion of the ISA, supplemental box
Mar 28, 2011
(Electronic) Receipt
Mar 28, 2011
Abstract
Mar 28, 2011
Claims
Mar 28, 2011
Description

EP2552995

BAYER

Application Number: EP11710223A
Filing Date: Mar 28, 2011
Status: Patent Maintained As Amended; Dec 3, 2021
Publication Date: Jan 5, 2022
External Links: Slate, Register , Google Patents

IP Verse

Melt Polycarbonate Having Improved Heat Ageing

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP2552995