Purification Of Recombinantly Produced Polypeptides

Patent No. EP2997036 (titled "Purification Of Recombinantly Produced Polypeptides") was filed by Medimmune on May 13, 2014. The application was issued on Mar 3, 2021.

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
GLAXOSMITHKLINE	Dec 3, 2021	BELL
OETKE	Dec 3, 2021	WALLINGER RICKER SCHLOTTER TOSTMANN

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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Nov 18, 2025
Decision of the Board of Appeal
Nov 18, 2025
F3032 Notification(s) of the decision
Apr 30, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Apr 29, 2025
F3014 Oral Proceedings: Order cancelling/postponing
Apr 17, 2025
F3345 Forwarding of submissions to parties
Apr 16, 2025
(Electronic) Receipt
Apr 16, 2025
Letter accompanying subsequently filed items
Apr 16, 2025
Letter dealing with oral proceedings during the appeal procedure
Apr 7, 2025
F3345 Forwarding of submissions to parties
Apr 4, 2025
(Electronic) Receipt
Apr 4, 2025
Letter dealing with oral proceedings during the appeal procedure
Mar 28, 2025
F3345 Forwarding of submissions to parties
Mar 25, 2025
(Electronic) Receipt
Mar 25, 2025
Letter accompanying subsequently filed items
Mar 25, 2025
Letter dealing with oral proceedings during the appeal procedure
Jan 21, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 21, 2025
Oral proceedings: change of venue
Sep 3, 2024
F3345 Forwarding of submissions to parties
Sep 2, 2024
(Electronic) Receipt
Sep 2, 2024
Letter accompanying subsequently filed items
Sep 2, 2024
Letter dealing with oral proceedings during the appeal procedure
Aug 1, 2024
F3011.1 Oral Proceedings: summons
Aug 1, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jul 29, 2024
F3010 Oral proceedings: order for summons
Mar 27, 2024
Composition of the board (T)
Jan 26, 2024
F3345 Forwarding of submissions to parties
Jan 25, 2024
(Electronic) Receipt
Jan 25, 2024
Amended claims with annotations
Jan 25, 2024
Auxiliary request during appeals procedure - 01
Jan 25, 2024
Letter accompanying subsequently filed items
Jan 25, 2024
Reply to appeal
Sep 18, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Sep 18, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Sep 13, 2023
(Electronic) Receipt
Sep 13, 2023
Letter accompanying subsequently filed items
Sep 13, 2023
Statement of grounds of appeal
Jul 3, 2023
F3204 Communication of the file number to the parties
Jun 29, 2023
(Electronic) Receipt
Jun 29, 2023
Letter accompanying subsequently filed items
Jun 29, 2023
Notice of appeal
May 12, 2023
(Electronic) Receipt
May 12, 2023
Advice of delivery
May 12, 2023
Letter accompanying subsequently filed items
May 5, 2023
(Electronic) Receipt
May 5, 2023
Advice of delivery
May 5, 2023
Letter accompanying subsequently filed items
May 4, 2023
Annex to the communication - opposition
May 4, 2023
Decision of the Opposition Division and instruction
May 4, 2023
Decision rejecting the opposition
May 4, 2023
Decision rejecting the opposition
May 4, 2023
Decision rejecting the opposition
May 4, 2023
Grounds for the decision (Annex) - opposition
May 4, 2023
Means of redress
May 4, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
May 4, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
May 4, 2023
Provision of a copy of the minutes - opposition procedure
May 4, 2023
Provision of a copy of the minutes - opposition procedure
May 4, 2023
Provision of a copy of the minutes - opposition procedure
May 4, 2023
Scanned annex to a communication - opposition procedure
May 4, 2023
Scanned annex to a communication - opposition procedure
May 4, 2023
Transmittal of decision / summons - opposition
May 4, 2023
Transmittal of decision / summons - opposition
May 4, 2023
Transmittal of decision / summons - opposition
Mar 15, 2023
Information about the result of oral proceedings
Jan 18, 2023
Brief communication - Opposition proceedings
Jan 18, 2023
Brief communication - Opposition proceedings
Jan 18, 2023
Brief communication - Opposition proceedings
Jan 18, 2023
Brief communication - Opposition proceedings
Jan 18, 2023
Brief communication - Opposition proceedings
Jan 13, 2023
(Electronic) Receipt
Jan 13, 2023
(Electronic) Receipt
Jan 13, 2023
(Electronic) Receipt
Jan 13, 2023
(Electronic) Receipt
Jan 13, 2023
(Electronic) Receipt
Jan 13, 2023
Auxiliary request during Opposition procedure
Jan 13, 2023
Auxiliary request during Opposition procedure
Jan 13, 2023
Auxiliary request during Opposition procedure
Jan 13, 2023
Auxiliary request during Opposition procedure - 01
Jan 13, 2023
Auxiliary request during Opposition procedure - 02
Jan 13, 2023
Auxiliary request during Opposition procedure - 03
Jan 13, 2023
Citation in opposition procedure - 016
Jan 13, 2023
Consolidated list of cited opposition documents
Jan 13, 2023
Letter accompanying subsequently filed items
Jan 13, 2023
Letter accompanying subsequently filed items
Jan 13, 2023
Letter accompanying subsequently filed items
Jan 13, 2023
Letter accompanying subsequently filed items
Jan 13, 2023
Written submission in preparation to/during oral proceedings
Jan 13, 2023
Written submission in preparation to/during oral proceedings
Jan 13, 2023
Written submission in preparation to/during oral proceedings
Nov 30, 2022
Notification concerning the date of oral proceedings
Nov 30, 2022
Notification concerning the date of oral proceedings
Nov 30, 2022
Notification concerning the date of oral proceedings
Sep 1, 2022
Advice of delivery
Sep 1, 2022
Letter accompanying subsequently filed items
Aug 25, 2022
Advice of delivery
Aug 18, 2022
Annex to the communication - opposition
Aug 18, 2022
Information concerning oral proceedings
Aug 18, 2022
Scanned annex to a communication - opposition procedure
Aug 18, 2022
Summons to attend oral proceedings
Aug 18, 2022
Summons to attend oral proceedings
Aug 18, 2022
Summons to attend oral proceedings
Aug 18, 2022
Transmittal of decision / summons - opposition
Aug 18, 2022
Transmittal of decision / summons - opposition
Aug 18, 2022
Transmittal of decision / summons - opposition
Apr 28, 2022
Brief communication - Opposition proceedings
Apr 28, 2022
Brief communication - Opposition proceedings
Apr 22, 2022
(Electronic) Receipt
Apr 22, 2022
Citation in opposition procedure - 015
Apr 22, 2022
Letter accompanying subsequently filed items
Apr 22, 2022
Reply of the patent proprietor to the notice(s) of opposition
Apr 14, 2022
Brief communication - Opposition proceedings
Apr 14, 2022
Brief communication - Opposition proceedings
Apr 14, 2022
Communication confirming withdrawal from representation
Apr 14, 2022
Communication of amended entries concerning the representative
Apr 8, 2022
(Electronic) Receipt
Apr 8, 2022
Letter accompanying subsequently filed items
Apr 8, 2022
Request for change of opponent's representative
Dec 17, 2021
Communication of a notice of opposition and request to file observations
Dec 17, 2021
Notice of further oppositions to opponent(s)
Dec 17, 2021
Notice of further oppositions to opponent(s)
Dec 13, 2021
Communication of a notice of opposition - first information to patent proprietor
Dec 3, 2021
(Electronic) Receipt
Dec 3, 2021
(Electronic) Receipt
Dec 3, 2021
Citation in opposition procedure
Dec 3, 2021
Citation in opposition procedure
Dec 3, 2021
Citation in opposition procedure - 001
Dec 3, 2021
Citation in opposition procedure - 002
Dec 3, 2021
Citation in opposition procedure - 003
Dec 3, 2021
Citation in opposition procedure - 004
Dec 3, 2021
Citation in opposition procedure - 005
Dec 3, 2021
Citation in opposition procedure - 006
Dec 3, 2021
Citation in opposition procedure - 006
Dec 3, 2021
Citation in opposition procedure - 007
Dec 3, 2021
Citation in opposition procedure - 007
Dec 3, 2021
Citation in opposition procedure - 007
Dec 3, 2021
Citation in opposition procedure - 008
Dec 3, 2021
Citation in opposition procedure - 009
Dec 3, 2021
Citation in opposition procedure - 010
Dec 3, 2021
Citation in opposition procedure - 011
Dec 3, 2021
Citation in opposition procedure - 012
Dec 3, 2021
Citation in opposition procedure - 013
Dec 3, 2021
Citation in opposition procedure - 014
Dec 3, 2021
Letter accompanying subsequently filed items
Dec 3, 2021
Notice of opposition
Dec 3, 2021
Notice of opposition
Dec 3, 2021
Notice of opposition
Dec 3, 2021
Notice of opposition
Mar 15, 2021
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Feb 22, 2021
Transmittal of third party observations to applicant
Feb 4, 2021
Decision to grant a European patent
Jan 29, 2021
Observations by third parties
Jan 29, 2021
Observations by third parties
Jan 20, 2021
(Electronic) Receipt
Jan 20, 2021
Filing of the translations of the claims
Jan 20, 2021
French translation of claims
Jan 20, 2021
German translation of the claims
Jan 20, 2021
Letter accompanying subsequently filed items
Oct 2, 2020
Bibliographic data of the European patent application
Oct 2, 2020
Communication about intention to grant a European patent
Oct 2, 2020
Intention to grant (signatures)
Oct 2, 2020
Text intended for grant (clean copy)
Oct 2, 2020
Text intended for grant (sequence listing)
Oct 2, 2020
Text intended for grant (version for approval)
Jul 27, 2020
(Electronic) Receipt
Jul 27, 2020
Amended claims with annotations
Jul 27, 2020
Claims
Jul 27, 2020
Letter accompanying subsequently filed items
Jul 27, 2020
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Mar 31, 2020
Bibliographic data of the European patent application
Mar 31, 2020
Communication about intention to grant a European patent
Mar 31, 2020
Intention to grant (signatures)
Mar 31, 2020
Text intended for grant (clean copy)
Mar 31, 2020
Text intended for grant (version for approval)
Mar 9, 2020
Examination started
Jun 4, 2018
Letter relating to the automatic debiting procedure
Aug 8, 2017
Communication of amended entries concerning the representative
Aug 2, 2017
Submission concerning change of applicant's representative
May 11, 2017
(Electronic) Receipt
May 11, 2017
Amended claims filed after receipt of (European) search report
May 11, 2017
Amended claims with annotations
May 11, 2017
Amendments received before examination
May 11, 2017
Letter accompanying subsequently filed items
Nov 17, 2016
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Oct 31, 2016
Communication regarding the transmission of the European search report
Oct 31, 2016
European search opinion
Oct 31, 2016
Information on Search Strategy
Oct 31, 2016
Supplementary European search report
Oct 21, 2016
Search started
Jul 14, 2016
(Electronic) Receipt
Jul 14, 2016
Amended claims filed after receipt of (European) search report
Jul 14, 2016
Amended claims with annotations
Jul 14, 2016
Amendments received before examination
Jul 14, 2016
Letter accompanying subsequently filed items
Feb 24, 2016
Notification on forthcoming publication of bibliographic data
Jan 22, 2016
Communication regarding possible amendment of the application/payment of claims fee
Jan 13, 2016
Communication to designated inventor
Jan 13, 2016
Communication to designated inventor
Jan 13, 2016
Communication to designated inventor
Jan 13, 2016
Communication to designated inventor
Jan 13, 2016
Communication to designated inventor
Dec 14, 2015
(Electronic) Receipt
Dec 14, 2015
Converted Sequence Listing
Dec 14, 2015
Request for entry into the European phase
Dec 1, 2015
Copy of the international preliminary report on patentability
Sep 25, 2015
Information on entry into European phase
Dec 8, 2014
Priority document (electronically transmitted)
Nov 20, 2014
Converted Sequence Listing
Nov 20, 2014
Copy of the international search report
Nov 20, 2014
Published international application - A1

EP2997036

MEDIMMUNE

Application Number: EP14797310A
Filing Date: May 13, 2014
Status: Granted And Under Opposition; Jan 29, 2021
Publication Date: Mar 3, 2021
External Links: Slate, Register , Google Patents

IP Verse

Purification Of Recombinantly Produced Polypeptides

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP2997036