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The patent EP3138853 was granted to Xencor on Nov 24, 2021. The application was filed on Sep 22, 2008 under application number EP16185391A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| COHAUSZ & FLORACK PATENT UND RECHTSANWALTE PARTNERSCHAFTSGESELLSCHAFT MBB | Aug 24, 2022 | COHAUSZ & FLORACK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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| DESCRIPTION | US20000222697 |
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| OPPOSITION | US7217797 |
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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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May 10, 2023
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Dec 7, 2021
Oct 28, 2021
Decision to grant a European patent
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Oct 18, 2021
(Electronic) Receipt
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Oct 18, 2021
Filing of the translations of the claims
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Oct 18, 2021
French translation of claims
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Oct 18, 2021
German translation of the claims
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Jun 8, 2021
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Intention to grant (signatures)
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Jun 8, 2021
Text intended for grant (clean copy)
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Jun 8, 2021
Text intended for grant (sequence listing)
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Jun 8, 2021
Mar 29, 2021
(Electronic) Receipt
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Mar 29, 2021
Amended claims with annotations
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Mar 29, 2021
Claims
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Mar 29, 2021
Letter accompanying subsequently filed items
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Mar 29, 2021
Nov 20, 2020
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Text intended for grant (clean copy)
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Nov 20, 2020
Text intended for grant (sequence listing)
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Nov 20, 2020
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Annex to a communication
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Annex to a communication
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Annex to a communication
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Annex to a communication
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Annex to the communication
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Sep 24, 2020
(Electronic) Receipt
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Sep 24, 2020
(Electronic) Receipt
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Sep 24, 2020
Amended claims with annotations
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Sep 24, 2020
Amended claims with annotations
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Sep 24, 2020
Annex
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Sep 24, 2020
Annex
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Sep 24, 2020
Claims
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Sep 24, 2020
Claims
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Sep 24, 2020
Letter accompanying subsequently filed items
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Sep 24, 2020
Letter accompanying subsequently filed items
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Sep 24, 2020
Sep 24, 2020
Sep 17, 2020
Annex to the communication
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Sep 17, 2020
Consultation by telephone/in person
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Sep 17, 2020
Aug 25, 2020
(Electronic) Receipt
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Aug 25, 2020
Amended claims with annotations
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Aug 25, 2020
Amended claims with annotations
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Aug 25, 2020
Claims
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Aug 25, 2020
Claims
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Aug 25, 2020
Letter accompanying subsequently filed items
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Aug 25, 2020
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Apr 24, 2020
Annex to the communication
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Apr 24, 2020
Summons to attend oral proceedings
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Nov 12, 2019
(Electronic) Receipt
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Nov 12, 2019
Amended claims with annotations
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Nov 12, 2019
Claims
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Nov 12, 2019
Letter accompanying subsequently filed items
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Nov 12, 2019
Jul 15, 2019
Jul 10, 2019
(Electronic) Receipt
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Jul 10, 2019
Letter accompanying subsequently filed items
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May 3, 2019
Annex to the communication
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May 3, 2019
Communication from the Examining Division
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Apr 11, 2019
Examination started
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Sep 6, 2017
(Electronic) Receipt
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Sep 6, 2017
Sep 6, 2017
Amended claims with annotations
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Sep 6, 2017
Sep 6, 2017
Amended description with annotations
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Sep 6, 2017
Amendments received before examination
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Sep 6, 2017
Letter accompanying subsequently filed items
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Mar 13, 2017
Mar 8, 2017
Communication to designated inventor
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Mar 2, 2017
(Electronic) Receipt
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Mar 2, 2017
Letter accompanying subsequently filed items
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Mar 2, 2017
Letter concerning the inventor
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Feb 8, 2017
Notification of forthcoming publication
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Feb 8, 2017
Refund of fees
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Feb 3, 2017
Feb 3, 2017
European search opinion
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Feb 3, 2017
European search report
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Feb 3, 2017
Information on Search Strategy
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Jan 13, 2017
Search started
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Dec 12, 2016
Dec 5, 2016
Letter which had not been notified
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Oct 14, 2016
Communication to designated inventor
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Oct 14, 2016
Communication to designated inventor
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Oct 14, 2016
Communication to designated inventor
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Oct 14, 2016
Communication to designated inventor
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Oct 11, 2016
Sep 28, 2016
Notice on debiting of fees
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Aug 24, 2016
(Electronic) Receipt
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Aug 24, 2016
Letter accompanying subsequently filed items
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Aug 24, 2016
Aug 23, 2016
Abstract
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Aug 23, 2016
Aug 23, 2016
Claims
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Aug 23, 2016
Converted Sequence Listing
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Aug 23, 2016
Description
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Aug 23, 2016
Designation of inventor
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Aug 23, 2016
Drawings
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Aug 23, 2016
Request for grant of a European patent
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May 27, 2009