The weekly litigation news digest is live. Subscribe now
The patent EP3491635 was granted to Rimasys on Jul 26, 2023. The application was filed on Jul 29, 2016 under application number EP16753848A. 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 |
|---|---|---|---|
| UNIVERSITATSKLINIKUM KOLN LANZERATH | Feb 1, 2024 | LIPPERT STACHOW PATENTANWALTE RECHTSANWALTE | WITHDRAWN |
| MEDARTIS | Sep 15, 2023 | HEPP WENGER RYFFEL | WITHDRAWN |
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
Nov 27, 2025
Aug 26, 2025
Aug 21, 2025
Aug 21, 2025
Aug 18, 2025
Aug 18, 2025
Aug 18, 2025
Aug 18, 2025
Jul 29, 2025
Jul 29, 2025
Jul 29, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Jul 24, 2025
Mar 11, 2025
Mar 7, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Feb 19, 2025
Feb 19, 2025
Feb 19, 2025
Feb 19, 2025
Feb 19, 2025
Jan 27, 2025
Sep 17, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 6, 2024
Jun 6, 2024
Jun 6, 2024
May 13, 2024
May 13, 2024
May 13, 2024
Apr 26, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Feb 9, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Feb 1, 2024
Sep 21, 2023
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Aug 8, 2023
Aug 2, 2023
Refund of fees
Search/Exam
Jul 5, 2023
Jun 29, 2023
Decision to grant a European patent
Search/Exam
Jun 23, 2023
Refund of fees
Search/Exam
Jun 15, 2023
(Electronic) Receipt
Search/Exam
Jun 15, 2023
Jun 15, 2023
Jun 15, 2023
English translation of the claims
Search/Exam
Jun 15, 2023
Filing of the translations of the claims
Search/Exam
Jun 15, 2023
French translation of claims
Search/Exam
Jun 15, 2023
Intention to grant (signatures)
Search/Exam
Jun 15, 2023
Letter accompanying subsequently filed items
Search/Exam
Jun 15, 2023
Text intended for grant (clean copy)
Search/Exam
Jun 15, 2023
Mar 31, 2023
(Electronic) Receipt
Search/Exam
Mar 31, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 31, 2023
Mar 15, 2023
Annex to the communication
Search/Exam
Mar 15, 2023
Communication from the Examining Division
Search/Exam
Mar 7, 2023
(Electronic) Receipt
Search/Exam
Mar 7, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 10, 2023
(Electronic) Receipt
Search/Exam
Jan 10, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 10, 2023
Nov 24, 2022
Annex to the communication
Search/Exam
Nov 24, 2022
Communication from the Examining Division
Search/Exam
Oct 24, 2022
(Electronic) Receipt
Search/Exam
Oct 24, 2022
English translation of the claims
Search/Exam
Oct 24, 2022
Filing of the translations of the claims
Search/Exam
Oct 24, 2022
French translation of claims
Search/Exam
Oct 24, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2022
Citation filed by a third party
Search/Exam
Oct 19, 2022
Non-patent literature filed by a third party
Search/Exam
Oct 19, 2022
Non-patent literature filed by a third party
Search/Exam
Oct 19, 2022
Observations by third parties
Search/Exam
Sep 12, 2022
Sep 12, 2022
Sep 12, 2022
Intention to grant (signatures)
Search/Exam
Sep 12, 2022
Text intended for grant (clean copy)
Search/Exam
Sep 12, 2022
Jun 23, 2022
Annex to the communication
Search/Exam
Jun 23, 2022
Consultation by telephone/in person
Search/Exam
Jun 23, 2022
Jun 22, 2022
(Electronic) Receipt
Search/Exam
Jun 22, 2022
Amended description with annotations
Search/Exam
Jun 22, 2022
Description
Search/Exam
Jun 22, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 22, 2022
Apr 25, 2022
Annex to the communication
Search/Exam
Apr 25, 2022
Communication from the Examining Division
Search/Exam
Apr 20, 2022
Annex to a communication
Search/Exam
Apr 20, 2022
Annex to the communication
Search/Exam
Apr 20, 2022
Apr 20, 2022
Apr 20, 2022
Mar 29, 2022
(Electronic) Receipt
Search/Exam
Mar 29, 2022
Amended description with annotations
Search/Exam
Mar 29, 2022
Annex
Search/Exam
Mar 29, 2022
Annex
Search/Exam
Mar 29, 2022
Description
Search/Exam
Mar 29, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 29, 2022
Mar 25, 2022
Annex to the communication
Search/Exam
Mar 25, 2022
Consultation by telephone/in person
Search/Exam
Mar 25, 2022
Feb 25, 2022
(Electronic) Receipt
Search/Exam
Feb 25, 2022
(Electronic) Receipt
Search/Exam
Feb 25, 2022
(Electronic) Receipt
Search/Exam
Feb 25, 2022
(Electronic) Receipt
Search/Exam
Feb 25, 2022
(Electronic) Receipt
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Amended description with annotations
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Description
Search/Exam
Feb 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Feb 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Feb 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Feb 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Feb 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Feb 25, 2022
Feb 25, 2022
Feb 25, 2022
Feb 25, 2022
Dec 22, 2021
Document concerning representation
Search/Exam
Dec 21, 2021
Document concerning representation
Search/Exam
Dec 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 4, 2021
Annex to the communication
Search/Exam
Nov 4, 2021
Summons to attend oral proceedings
Search/Exam
Sep 29, 2021
(Electronic) Receipt
Search/Exam
Sep 29, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 29, 2021
Aug 31, 2021
Aug 25, 2021
(Electronic) Receipt
Search/Exam
Aug 25, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 25, 2021
Observations by third parties
Search/Exam
Aug 25, 2021
Observations by third parties
Search/Exam
Aug 17, 2021
(Electronic) Receipt
Search/Exam
Aug 17, 2021
Amended claims with annotations
Search/Exam
Aug 17, 2021
Amended description with annotations
Search/Exam
Aug 17, 2021
Claims
Search/Exam
Aug 17, 2021
Description
Search/Exam
Aug 17, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 17, 2021
May 25, 2021
Annex to the communication
Search/Exam
May 25, 2021
Communication from the Examining Division
Search/Exam
Mar 17, 2021
(Electronic) Receipt
Search/Exam
Mar 17, 2021
Claims
Search/Exam
Mar 17, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 17, 2021
Nov 12, 2020
Annex to the communication
Search/Exam
Nov 12, 2020
Communication from the Examining Division
Search/Exam
Sep 2, 2020
(Electronic) Receipt
Search/Exam
Sep 2, 2020
Amended claims with annotations
Search/Exam
Sep 2, 2020
Claims
Search/Exam
Sep 2, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 2, 2020
Aug 7, 2020
Annex to the communication
Search/Exam
Aug 7, 2020
Communication from the Examining Division
Search/Exam
May 28, 2020
(Electronic) Receipt
Search/Exam
May 28, 2020
Amended claims with annotations
Search/Exam
May 28, 2020
Claims
Search/Exam
May 28, 2020
Letter accompanying subsequently filed items
Search/Exam
May 28, 2020
May 18, 2020
Annex to the communication
Search/Exam
May 18, 2020
Communication from the Examining Division
Search/Exam
May 15, 2020
(Electronic) Receipt
Search/Exam
May 15, 2020
Amended claims with annotations
Search/Exam
May 15, 2020
Claims
Search/Exam
May 15, 2020
Letter accompanying subsequently filed items
Search/Exam
May 15, 2020
May 4, 2020
Examination started
Search/Exam
Feb 25, 2020
Feb 25, 2020
Feb 20, 2020
(Electronic) Receipt
Search/Exam
Feb 20, 2020
Citation filed by a third party
Search/Exam
Feb 20, 2020
Citation filed by a third party
Search/Exam
Feb 20, 2020
Citation filed by a third party
Search/Exam
Feb 20, 2020
Citation filed by a third party
Search/Exam
Feb 20, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 20, 2020
Observations by third parties
Search/Exam
Feb 20, 2020
Observations by third parties
Search/Exam
Jan 30, 2020
Jan 24, 2020
Non-patent literature filed by a third party
Search/Exam
Jan 24, 2020
Non-patent literature filed by a third party
Search/Exam
Jan 24, 2020
Observations by third parties
Search/Exam
May 8, 2019
Mar 21, 2019
Mar 18, 2019
Mar 15, 2019
Mar 12, 2019
Mar 8, 2019
Communication to designated inventor
Search/Exam
Mar 8, 2019
Communication to designated inventor
Search/Exam
Feb 22, 2019
(Electronic) Receipt
Search/Exam
Feb 22, 2019
Feb 22, 2019
Amended claims with annotations
Search/Exam
Feb 22, 2019
Request for entry into the European phase
Search/Exam
Feb 15, 2019
Dec 5, 2018
Information on entry into European phase
Search/Exam
Feb 1, 2018
Copy of the international search report
Search/Exam
Feb 1, 2018
Copy of the international search report
Search/Exam
Feb 1, 2018
Published international application - A1
Search/Exam
Feb 3, 2017
Jan 2, 2017
Jan 2, 2017
Dec 1, 2016
ISR: cited documents
PCTISA
Dec 1, 2016
Nov 30, 2016
Nov 30, 2016
Nov 30, 2016
Sep 2, 2016
Aug 30, 2016
Aug 26, 2016
Jul 29, 2016
(Electronic) Receipt
PCTRO
Jul 29, 2016
Abstract
PCTRO
Jul 29, 2016
Claims
PCTRO
Jul 29, 2016
Description
PCTRO
Jul 29, 2016
Jul 29, 2016
Drawings
PCTRO
Jul 29, 2016