The weekly litigation news digest is live. Subscribe now
The patent EP3395383 was granted to Regen LAB on Feb 22, 2023. The application was filed on Aug 21, 2007 under application number EP18020250A. 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 |
|---|---|---|---|
| ESTAR | Nov 22, 2023 | PEARL COHEN ZEDEK LATZER BARATZ UK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1543846 |
| DESCRIPTION | US5891617 |
| DESCRIPTION | US6472162 |
| OPPOSITION | CA2529905 |
| SEARCH | US2002187130 |
| SEARCH | US2004151709 |
| SEARCH | US5667963 |
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
Dec 8, 2025
Refund of fees
Search/Exam
Nov 27, 2025
Nov 27, 2025
Nov 24, 2025
(Electronic) Receipt
Appeal
Nov 24, 2025
Nov 24, 2025
Withdrawal of an appeal
Appeal
Nov 13, 2025
Nov 13, 2025
Sep 18, 2025
(Electronic) Receipt
Appeal
Sep 18, 2025
Notice of appeal
Appeal
Sep 18, 2025
Notice of appeal
Appeal
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Means of redress
OPPO
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 7, 2025
Jul 7, 2025
Jul 4, 2025
Jul 4, 2025
Jul 4, 2025
Jul 4, 2025
May 14, 2025
May 9, 2025
May 9, 2025
May 9, 2025
May 9, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 6, 2025
May 6, 2025
May 6, 2025
May 6, 2025
May 6, 2025
May 6, 2025
May 6, 2025
May 6, 2025
May 6, 2025
May 6, 2025
May 6, 2025
May 6, 2025
May 6, 2025
Apr 29, 2025
Apr 29, 2025
Apr 29, 2025
Apr 29, 2025
Apr 29, 2025
Apr 14, 2025
Apr 14, 2025
Apr 11, 2025
Apr 8, 2025
Apr 8, 2025
Apr 8, 2025
Apr 8, 2025
Apr 8, 2025
Jan 2, 2025
Dec 12, 2024
Letter accompanying subsequently filed items
Search/Exam
Dec 12, 2024
Dec 12, 2024
Oct 10, 2024
Oct 10, 2024
Oct 10, 2024
Oct 10, 2024
Oct 10, 2024
Apr 26, 2024
Letter accompanying subsequently filed items
Search/Exam
Apr 16, 2024
Apr 11, 2024
Apr 11, 2024
Apr 11, 2024
Apr 11, 2024
Apr 11, 2024
Feb 2, 2024
Jan 23, 2024
Letter accompanying subsequently filed items
Search/Exam
Jan 23, 2024
Dec 14, 2023
Dec 14, 2023
Dec 7, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Mar 7, 2023
Jan 26, 2023
Decision to grant a European patent
Search/Exam
Jan 12, 2023
(Electronic) Receipt
Search/Exam
Jan 12, 2023
Filing of the translations of the claims
Search/Exam
Jan 12, 2023
French translation of claims
Search/Exam
Jan 12, 2023
German translation of the claims
Search/Exam
Jan 12, 2023
Letter accompanying subsequently filed items
Search/Exam
Nov 16, 2022
Nov 16, 2022
Nov 16, 2022
Nov 16, 2022
Intention to grant (signatures)
Search/Exam
Nov 16, 2022
Text intended for grant (clean copy)
Search/Exam
Nov 16, 2022
Sep 8, 2022
(Electronic) Receipt
Search/Exam
Sep 8, 2022
Amended description with annotations
Search/Exam
Sep 8, 2022
Description
Search/Exam
Sep 8, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 8, 2022
Sep 8, 2022
Sep 7, 2022
Annex to the communication
Search/Exam
Sep 7, 2022
Consultation by telephone/in person
Search/Exam
Sep 7, 2022
Sep 6, 2022
Annex to the communication
Search/Exam
Sep 6, 2022
Consultation by telephone/in person
Search/Exam
Sep 6, 2022
Sep 2, 2022
(Electronic) Receipt
Search/Exam
Sep 2, 2022
Amended claims with annotations
Search/Exam
Sep 2, 2022
Amended claims with annotations
Search/Exam
Sep 2, 2022
Claims
Search/Exam
Sep 2, 2022
Claims
Search/Exam
Sep 2, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 2, 2022
Aug 30, 2022
Annex to the communication
Search/Exam
Aug 30, 2022
Consultation by telephone/in person
Search/Exam
Aug 30, 2022
Aug 19, 2022
Aug 12, 2022
(Electronic) Receipt
Search/Exam
Aug 12, 2022
Amended claims with annotations
Search/Exam
Aug 12, 2022
Amended claims with annotations
Search/Exam
Aug 12, 2022
Claims
Search/Exam
Aug 12, 2022
Claims
Search/Exam
Aug 12, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 12, 2022
Aug 12, 2022
Aug 12, 2022
Aug 4, 2022
(Electronic) Receipt
Search/Exam
Aug 4, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 4, 2022
Oral proceedings: reply to date proposed
Search/Exam
Aug 2, 2022
(Electronic) Receipt
Search/Exam
Aug 2, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 2, 2022
Oral proceedings: reply to date proposed
Search/Exam
Aug 2, 2022
Submission concerning representation
Search/Exam
May 6, 2022
Apr 25, 2022
(Electronic) Receipt
Search/Exam
Apr 25, 2022
Amended claims with annotations
Search/Exam
Apr 25, 2022
Amended claims with annotations
Search/Exam
Apr 25, 2022
Amended claims with annotations
Search/Exam
Apr 25, 2022
Amended claims with annotations
Search/Exam
Apr 25, 2022
Amended claims with annotations
Search/Exam
Apr 25, 2022
Amended claims with annotations
Search/Exam
Apr 25, 2022
Amended claims with annotations
Search/Exam
Apr 25, 2022
Amended claims with annotations
Search/Exam
Apr 25, 2022
Amended claims with annotations
Search/Exam
Apr 25, 2022
Amended claims with annotations
Search/Exam
Apr 25, 2022
Claims
Search/Exam
Apr 25, 2022
Claims
Search/Exam
Apr 25, 2022
Claims
Search/Exam
Apr 25, 2022
Claims
Search/Exam
Apr 25, 2022
Claims
Search/Exam
Apr 25, 2022
Claims
Search/Exam
Apr 25, 2022
Claims
Search/Exam
Apr 25, 2022
Claims
Search/Exam
Apr 25, 2022
Claims
Search/Exam
Apr 25, 2022
Claims
Search/Exam
Apr 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Apr 25, 2022
Nov 4, 2021
Annex to the communication
Search/Exam
Nov 4, 2021
Summons to attend oral proceedings
Search/Exam
Jul 21, 2021
(Electronic) Receipt
Search/Exam
Jul 21, 2021
Amended claims with annotations
Search/Exam
Jul 21, 2021
Amended claims with annotations
Search/Exam
Jul 21, 2021
Claims
Search/Exam
Jul 21, 2021
Claims
Search/Exam
Jul 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 21, 2021
May 14, 2021
Annex to the communication
Search/Exam
May 14, 2021
Communication from the Examining Division
Search/Exam
Jan 27, 2021
(Electronic) Receipt
Search/Exam
Jan 27, 2021
Amended claims with annotations
Search/Exam
Jan 27, 2021
Amended claims with annotations
Search/Exam
Jan 27, 2021
Claims
Search/Exam
Jan 27, 2021
Claims
Search/Exam
Jan 27, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 27, 2021
Oct 7, 2020
Annex to the communication
Search/Exam
Oct 7, 2020
Communication from the Examining Division
Search/Exam
Jun 9, 2020
Jun 8, 2020
Jun 4, 2020
(Electronic) Receipt
Search/Exam
Jun 4, 2020
(Electronic) Receipt
Search/Exam
Jun 4, 2020
Amended claims with annotations
Search/Exam
Jun 4, 2020
Claims
Search/Exam
Jun 4, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 4, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 4, 2020
Jun 4, 2020
Jun 2, 2020
(Electronic) Receipt
Search/Exam
Jun 2, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 2, 2020
Jan 16, 2020
Annex to the communication
Search/Exam
Jan 16, 2020
Communication from the Examining Division
Search/Exam
Dec 12, 2019
Examination started
Search/Exam
Oct 1, 2019
(Electronic) Receipt
Search/Exam
Oct 1, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 1, 2019
Non-patent literature filed by a third party
Search/Exam
Oct 1, 2019
Reply to communication to third party
Search/Exam
Sep 6, 2019
Sep 6, 2019
Aug 30, 2019
Aug 30, 2019
Aug 30, 2019
Aug 30, 2019
Aug 30, 2019
Aug 30, 2019
Aug 30, 2019
Aug 30, 2019
Observations by third parties
Search/Exam
Aug 30, 2019
Observations by third parties
Search/Exam
Apr 30, 2019
(Electronic) Receipt
Search/Exam
Apr 30, 2019
Apr 30, 2019
Amended claims with annotations
Search/Exam
Apr 30, 2019
Amendments received before examination
Search/Exam
Apr 30, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 18, 2019
Mar 3, 2019
Authorisation
Search/Exam
Mar 3, 2019
Nov 6, 2018
Oct 15, 2018
Refund of fees
Search/Exam
Oct 4, 2018
Notification of forthcoming publication
Search/Exam
Oct 1, 2018
Oct 1, 2018
European search opinion
Search/Exam
Oct 1, 2018
European search report
Search/Exam
Oct 1, 2018
Information on Search Strategy
Search/Exam
Sep 26, 2018
Sep 26, 2018
Sep 12, 2018
Sep 12, 2018
Sep 11, 2018
Sep 7, 2018
Search started
Search/Exam
Sep 7, 2018
Sep 7, 2018
Sep 5, 2018
Jul 3, 2018
Annexes in respect of a client data request
Search/Exam
Jun 30, 2018
Jun 14, 2018
Matter concerning the application
Search/Exam
Jun 8, 2018
Abstract
Search/Exam
Jun 8, 2018
Claims
Search/Exam
Jun 8, 2018
Description
Search/Exam
Jun 8, 2018
Drawings
Search/Exam
Jun 8, 2018
Matter concerning the application
Search/Exam
Jun 8, 2018
Request for grant of a European patent
Search/Exam
Mar 18, 2008