IP Verse

Transgenic Mice Expressing Chimeric Major Histocompatibility Complex (Mhc) Class Ii Molecules

Patent No. EP2967015 (titled "Transgenic Mice Expressing Chimeric Major Histocompatibility Complex (Mhc) Class Ii Molecules") was filed by Regeneron Pharmaceuticals on Mar 11, 2014. The application was issued on Aug 9, 2023.

Patent Summary

Patent Family

Patent Oppositions

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
WUESTHOFF & WUESTHOFF PATENTANWALTE PARTG MBB	Mar 5, 2024	WICHMANN

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

Get instant alerts for new documents

Jan 28, 2026
Brief communication - Opposition proceedings
Jan 28, 2026
Brief communication - Opposition proceedings
Jan 28, 2026
Decision of the Opposition Division and instruction
Jan 28, 2026
Druckexemplar in opposition procedure
Jan 28, 2026
Grounds for the decision (Annex) - opposition
Jan 28, 2026
Interlocutory decision in opposition proceedings
Jan 28, 2026
Interlocutory decision in opposition proceedings
Jan 28, 2026
Means of redress
Oct 13, 2025
Brief communication - Opposition proceedings
Oct 8, 2025
(Electronic) Receipt
Oct 8, 2025
Letter accompanying subsequently filed items
Oct 8, 2025
Reply to an examination report in opposition proceedings
Sep 18, 2025
Annex to the communication - opposition
Sep 18, 2025
Communication inviting the parties to file observations
Sep 18, 2025
Communication inviting the parties to file observations
Aug 7, 2025
Brief communication - Opposition proceedings
Aug 4, 2025
(Electronic) Receipt
Aug 4, 2025
Description
Aug 4, 2025
Letter accompanying subsequently filed items
Aug 4, 2025
Reply to an examination report in opposition proceedings
Jun 11, 2025
Annex to the communication - opposition
Jun 11, 2025
Brief communication - Opposition proceedings
Jun 11, 2025
Brief communication - Opposition proceedings
Jun 11, 2025
Communication inviting the parties to file observations
Jun 11, 2025
Communication inviting the parties to file observations
Jun 11, 2025
Scanned annex to a communication - opposition procedure
Aug 8, 2024
Brief communication - Opposition proceedings
Aug 5, 2024
(Electronic) Receipt
Aug 5, 2024
Letter accompanying subsequently filed items
Aug 5, 2024
Reply from the opponent to submission of proprietor
Jul 25, 2024
Brief communication - Opposition proceedings
Jul 22, 2024
(Electronic) Receipt
Jul 22, 2024
Auxiliary request during Opposition procedure
Jul 22, 2024
Auxiliary request during Opposition procedure - 01
Jul 22, 2024
Letter accompanying subsequently filed items
Jul 22, 2024
Main request during Opposition procedure
Jul 22, 2024
Main request during Opposition procedure
Jul 22, 2024
Reply of the patent proprietor to the notice(s) of opposition
Mar 22, 2024
Communication of a notice of opposition and request to file observations
Mar 22, 2024
Notice of further oppositions to opponent(s)
Mar 13, 2024
Communication of a notice of opposition - first information to patent proprietor
Mar 5, 2024
(Electronic) Receipt
Mar 5, 2024
Citation in opposition procedure
Mar 5, 2024
Citation in opposition procedure
Mar 5, 2024
Citation in opposition procedure - 001
Mar 5, 2024
Citation in opposition procedure - 001
Mar 5, 2024
Citation in opposition procedure - 002
Mar 5, 2024
Citation in opposition procedure - 003
Mar 5, 2024
Citation in opposition procedure - 004
Mar 5, 2024
Citation in opposition procedure - 005
Mar 5, 2024
Citation in opposition procedure - 005
Mar 5, 2024
Citation in opposition procedure - 006
Mar 5, 2024
Citation in opposition procedure - 007
Mar 5, 2024
Citation in opposition procedure - 008
Mar 5, 2024
Citation in opposition procedure - 009
Mar 5, 2024
Citation in opposition procedure - 010
Mar 5, 2024
Citation in opposition procedure - 011
Mar 5, 2024
Citation in opposition procedure - 012
Mar 5, 2024
Citation in opposition procedure - 013
Mar 5, 2024
Consolidated list of cited opposition documents
Mar 5, 2024
Notice of opposition
Mar 5, 2024
Notice of opposition
Sep 7, 2023
Communication concerning correction of publication errors in European patent specification
Jul 6, 2023
Communication concerning correction of publication errors in European patent specification
Jul 3, 2023
Letter concerning publication issues
Jun 30, 2023
(Electronic) Receipt
Jun 30, 2023
Letter accompanying subsequently filed items
Jun 30, 2023
Request for correction of the publication
Jun 20, 2023
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
May 11, 2023
Decision to grant a European patent
Jan 31, 2023
(Electronic) Receipt
Jan 31, 2023
Filing of the translations of the claims
Jan 31, 2023
French translation of claims
Jan 31, 2023
German translation of the claims
Jan 31, 2023
Letter accompanying subsequently filed items
Jan 31, 2023
Request for delayed grant (upcoming introduction of UPP)
Sep 28, 2022
Bibliographic data of the European patent application
Sep 28, 2022
Communication about intention to grant a European patent
Sep 28, 2022
Intention to grant (signatures)
Sep 28, 2022
Text intended for grant (clean copy)
Sep 28, 2022
Text intended for grant (sequence listing)
Sep 28, 2022
Text intended for grant (version for approval)
Jul 27, 2022
(Electronic) Receipt
Jul 27, 2022
Amended claims with annotations
Jul 27, 2022
Claims
Jul 27, 2022
Description
Jul 27, 2022
Letter accompanying subsequently filed items
Jul 27, 2022
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Apr 22, 2022
Bibliographic data of the European patent application
Apr 22, 2022
Communication about intention to grant a European patent
Apr 22, 2022
Intention to grant (signatures)
Apr 22, 2022
Text intended for grant (clean copy)
Apr 22, 2022
Text intended for grant (sequence listing)
Apr 22, 2022
Text intended for grant (version for approval)
Feb 9, 2022
(Electronic) Receipt
Feb 9, 2022
Amended claims with annotations
Feb 9, 2022
Claims
Feb 9, 2022
Letter accompanying subsequently filed items
Feb 9, 2022
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Jan 13, 2022
Annex to the communication
Jan 13, 2022
Brief communication to applicant/representative
Jan 13, 2022
Consultation by telephone/in person
Jan 13, 2022
Result of consultation by telephone/in person
Oct 7, 2021
Bibliographic data of the European patent application
Oct 7, 2021
Communication about intention to grant a European patent
Oct 7, 2021
Intention to grant (signatures)
Oct 7, 2021
Text intended for grant (clean copy)
Oct 7, 2021
Text intended for grant (sequence listing)
Oct 7, 2021
Text intended for grant (version for approval)
Aug 18, 2021
(Electronic) Receipt
Aug 18, 2021
Amended claims with annotations
Aug 18, 2021
Claims
Aug 18, 2021
Letter accompanying subsequently filed items
Aug 18, 2021
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Apr 30, 2021
Request for a change to the title of the invention
Apr 26, 2021
(Electronic) Receipt
Apr 26, 2021
Letter accompanying subsequently filed items
Apr 26, 2021
Matter concerning the application
Apr 18, 2021
Intention to grant (signatures)
Apr 16, 2021
Bibliographic data of the European patent application
Apr 16, 2021
Communication about intention to grant a European patent
Apr 16, 2021
Text intended for grant (clean copy)
Apr 16, 2021
Text intended for grant (sequence listing)
Apr 16, 2021
Text intended for grant (version for approval)
Feb 23, 2021
(Electronic) Receipt
Feb 23, 2021
Amended claims with annotations
Feb 23, 2021
Claims
Feb 23, 2021
Letter accompanying subsequently filed items
Feb 23, 2021
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Feb 22, 2021
Change to the inventor details
Feb 17, 2021
(Electronic) Receipt
Feb 17, 2021
Letter accompanying subsequently filed items
Feb 17, 2021
Letter concerning the inventor
Jan 22, 2021
(Electronic) Receipt
Jan 22, 2021
Letter accompanying subsequently filed items
Jan 22, 2021
Letter concerning the inventor
Nov 25, 2020
Request for a change to the title of the invention
Nov 18, 2020
(Electronic) Receipt
Nov 18, 2020
Letter accompanying subsequently filed items
Nov 18, 2020
Request for correction of errors in filed documents
Nov 16, 2020
Bibliographic data of the European patent application
Nov 16, 2020
Communication about intention to grant a European patent
Nov 16, 2020
Intention to grant (signatures)
Nov 16, 2020
Text intended for grant (clean copy)
Nov 16, 2020
Text intended for grant (sequence listing)
Nov 16, 2020
Text intended for grant (version for approval)
Oct 19, 2020
(Electronic) Receipt
Oct 19, 2020
Amended claims with annotations
Oct 19, 2020
Claims
Oct 19, 2020
Description
Oct 19, 2020
Letter accompanying subsequently filed items
Oct 19, 2020
Reply to communication from the Examining Division
Jun 10, 2020
Annex to the communication
Jun 10, 2020
Communication from the Examining Division
Mar 19, 2020
Document concerning representation
Jan 20, 2020
(Electronic) Receipt
Jan 20, 2020
Amended claims with annotations
Jan 20, 2020
Claims
Jan 20, 2020
Letter accompanying subsequently filed items
Jan 20, 2020
Reply to communication from the Examining Division
Sep 11, 2019
Annex to the communication
Sep 11, 2019
Communication from the Examining Division
Dec 20, 2018
Communication of amended entries concerning the representative
Dec 14, 2018
Submission concerning change of applicant's representative
Dec 13, 2018
Submission concerning change of applicant's representative
Jun 29, 2017
(Electronic) Receipt
Jun 29, 2017
Amended claims with annotations
Jun 29, 2017
Claims
Jun 29, 2017
Letter accompanying subsequently filed items
Jun 29, 2017
Reply to communication from the Examining Division
Feb 23, 2017
Annex to the communication
Feb 23, 2017
Communication from the Examining Division
Feb 15, 2017
Examination started
Nov 28, 2016
Notification regarding date of start of examination with possibility to withdraw
Apr 28, 2016
(Electronic) Receipt
Apr 28, 2016
Amended claims filed after receipt of (European) search report
Apr 28, 2016
Amended claims with annotations
Apr 28, 2016
Amendments received before examination
Apr 28, 2016
Letter accompanying subsequently filed items
Jan 12, 2016
CDS Clean up - amended applicant details
Dec 23, 2015
Notification on forthcoming publication of bibliographic data
Oct 29, 2015
Request for correction of obvious mistakes allowed
Oct 23, 2015
(Electronic) Receipt
Oct 23, 2015
Letter accompanying subsequently filed items
Oct 23, 2015
Request for correction of errors in filed documents
Oct 22, 2015
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Oct 16, 2015
Communication to designated inventor
Oct 16, 2015
Communication to designated inventor
Oct 16, 2015
Communication to designated inventor
Oct 16, 2015
Communication to designated inventor
Oct 16, 2015
Communication to designated inventor
Oct 16, 2015
Communication to designated inventor
Oct 2, 2015
Copy of the international preliminary report on patentability
Aug 25, 2015
(Electronic) Receipt
Aug 25, 2015
Converted Sequence Listing
Aug 25, 2015
Request for entry into the European phase
Aug 25, 2015
Submission concerning representation
Aug 14, 2015
Information on entry into European phase
Nov 7, 2014
Notification of the recording of a change
Oct 29, 2014
Priority document (electronically transmitted)
Oct 9, 2014
Converted Sequence Listing
Oct 9, 2014
Copy of the international search report
Oct 9, 2014
Published international application - A1
Jul 23, 2014
Written opinion of the ISA, boxes No. I to VIII
Jul 23, 2014
Written opinion of the ISA, cover sheet
Jul 23, 2014
Written opinion of the ISA, supplemental box
Apr 22, 2014
Abstract
Apr 22, 2014
Annex
Apr 22, 2014
Annex
Apr 22, 2014
Annex
Apr 22, 2014
Claims
Apr 22, 2014
Description
Apr 22, 2014
Drawings
Apr 22, 2014
Submission concerning representation

EP2967015

REGENERON PHARMACEUTICALS

Application Number: EP14718815A
Filing Date: Mar 11, 2014
Status: Granted And Under Opposition; May 5, 2023
Publication Date: Aug 9, 2023
External Links: Slate, Register , Google Patents