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The patent EP3889181 was granted to Regeneron Pharmaceuticals on Apr 24, 2024. The application was filed on Sep 4, 2013 under application number EP21167811A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 | Opposition Status |
|---|---|---|---|
| BOULT WADE TENNANT | Jan 24, 2025 | BOULT WADE TENNANT | ADMISSIBLE |
| BRAND MURRAY FULLER | Jan 24, 2025 | BRAND MURRAY FULLER | ADMISSIBLE |
| DEHMEL & BETTENHAUSEN PATENTANWALTE PARTMBB | Jan 24, 2025 | RUCKERL | ADMISSIBLE |
| HAMPTON KNOWLES | Jan 24, 2025 | D YOUNG | ADMISSIBLE |
| LUIGI | Jan 24, 2025 | TER MEER STEINMEISTER & PARTNER | ADMISSIBLE |
| MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBB | Jan 24, 2025 | - | ADMISSIBLE |
| SECERNA | Jan 23, 2025 | SECERNA | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2012097565 |
| DESCRIPTION | US6596541 |
| DESCRIPTION | US6927044 |
| DESCRIPTION | US7531637 |
| DESCRIPTION | US7582298 |
| DESCRIPTION | US7608693 |
| OPPOSITION | EP3889181 |
| OPPOSITION | US2009074793 |
| OPPOSITION | US2012052072 |
| OPPOSITION | WO2010053751 |
| OPPOSITION | WO2012047954 |
| OPPOSITION | WO2014039461 |
| OPPOSITION | WO2022076289 |
| SEARCH | WO2010053751 |
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.
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May 8, 2024
Mar 28, 2024
Decision to grant a European patent
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Mar 18, 2024
(Electronic) Receipt
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Mar 18, 2024
Filing of the translations of the claims
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Mar 18, 2024
French translation of claims
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Mar 18, 2024
German translation of the claims
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Mar 18, 2024
Letter accompanying subsequently filed items
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Dec 13, 2023
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Dec 13, 2023
Intention to grant (signatures)
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Dec 13, 2023
Text intended for grant (clean copy)
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Dec 13, 2023
Nov 13, 2023
Annex to the communication
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Nov 13, 2023
Consultation by telephone/in person
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Nov 13, 2023
Nov 9, 2023
(Electronic) Receipt
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Nov 9, 2023
Amended claims with annotations
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Nov 9, 2023
Amended description with annotations
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Nov 9, 2023
Claims
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Nov 9, 2023
Description
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Nov 9, 2023
Letter accompanying subsequently filed items
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Nov 9, 2023
Oct 31, 2023
Annex to the communication
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Oct 31, 2023
Consultation by telephone/in person
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Oct 31, 2023
Oct 24, 2023
(Electronic) Receipt
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Oct 24, 2023
Amended claims with annotations
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Oct 24, 2023
Amended claims with annotations
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Oct 24, 2023
Amended claims with annotations
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Oct 24, 2023
Claims
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Oct 24, 2023
Claims
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Oct 24, 2023
Claims
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Oct 24, 2023
Claims
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Oct 24, 2023
Letter accompanying subsequently filed items
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Oct 24, 2023
Oct 24, 2023
Jun 9, 2023
Annex to the communication
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Jun 9, 2023
Summons to attend oral proceedings
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May 11, 2023
(Electronic) Receipt
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May 11, 2023
Amended claims with annotations
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May 11, 2023
Claims
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May 11, 2023
Letter accompanying subsequently filed items
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May 11, 2023
May 5, 2023
(Electronic) Receipt
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May 5, 2023
Amended claims with annotations
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May 5, 2023
Claims
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May 5, 2023
Letter accompanying subsequently filed items
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May 5, 2023
May 5, 2023
May 5, 2023
Feb 20, 2023
Annex to the communication
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Feb 20, 2023
Communication from the Examining Division
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Feb 15, 2023
Examination started
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Mar 25, 2022
(Electronic) Receipt
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Mar 25, 2022
Letter accompanying subsequently filed items
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Mar 25, 2022
Mar 25, 2022
Reply to Written Opinion prepared by the EPO
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Oct 11, 2021
Sep 20, 2021
Document concerning representation
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Sep 8, 2021
Notification of forthcoming publication
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Aug 11, 2021
Refund of fees
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Aug 6, 2021
Aug 6, 2021
European search opinion
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Aug 6, 2021
European search report
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Aug 6, 2021
Information on Search Strategy
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Jul 28, 2021
Search started
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Apr 12, 2021
Abstract
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Apr 12, 2021
Apr 12, 2021
Amended claims with annotations
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Apr 12, 2021
Annex
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Apr 12, 2021
Annex
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Apr 12, 2021
Claims
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Apr 12, 2021
Converted Sequence Listing
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Apr 12, 2021
Description
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Apr 12, 2021
Designation of inventor
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Apr 12, 2021
Drawings
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Apr 12, 2021
Matter concerning the application
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Apr 12, 2021
Request for grant of a European patent
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Jul 15, 2019
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