The weekly litigation news digest is live. Subscribe now
The patent EP3629995 was granted to BAY Materials on Oct 26, 2022. The application was filed on May 31, 2018 under application number EP18733091A. 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 |
|---|---|---|---|
| SCHEU DENTAL | Jul 25, 2023 | SCHNEIDERS & BEHRENDT BOCHUM | ADMISSIBLE |
| SHANGHAI MAXFLEX MEDICAL TECHNOLOGY | Jul 24, 2023 | DOMPATENT VON KREISLER SELTING WERNER | ADMISSIBLE |
| SHANGHAI MAXFLEX MEDICAL TECHNOLOGY | Jul 24, 2023 | DOMPATENT VON PATENT UND RECHTSANWALTEN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE4310970 |
| DESCRIPTION | US6524101 |
| DESCRIPTION | US8716425 |
| DESCRIPTION | US9655691 |
| DESCRIPTION | US9655693 |
| EXAMINATION | WO2010043419 |
| INTERNATIONAL-SEARCH-REPORT | US6746757 |
| INTERNATIONAL-SEARCH-REPORT | US9655693 |
| INTERNATIONAL-SEARCH-REPORT | WO2010074789 |
| OPPOSITION | EP3629995 |
| OPPOSITION | US2016157962 |
| OPPOSITION | US9655693 |
| OPPOSITION | WO03008477 |
| OPPOSITION | WO2010043419 |
| OPPOSITION | WO2013171124 |
| OPPOSITION | WO2018222864 |
| OTHER | US2016157962 |
| OTHER | WO2010043419 |
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
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Mar 14, 2025
Mar 14, 2025
Mar 13, 2025
Mar 13, 2025
Mar 13, 2025
Mar 13, 2025
Mar 7, 2025
Mar 7, 2025
Mar 7, 2025
Mar 7, 2025
Mar 7, 2025
Mar 7, 2025
Mar 7, 2025
Mar 7, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 9, 2024
Sep 9, 2024
Sep 9, 2024
Sep 9, 2024
Sep 9, 2024
Sep 9, 2024
Sep 9, 2024
May 24, 2024
Letter accompanying subsequently filed items
Search/Exam
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Feb 12, 2024
Feb 12, 2024
Feb 2, 2024
Feb 2, 2024
Feb 2, 2024
Feb 2, 2024
Jan 25, 2024
Dec 18, 2023
Dec 18, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Dec 8, 2023
Nov 14, 2023
Nov 14, 2023
Nov 14, 2023
Nov 14, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Aug 17, 2023
Aug 17, 2023
Aug 10, 2023
Aug 10, 2023
Authorisation
OPPO
Aug 10, 2023
Aug 10, 2023
Aug 9, 2023
Aug 9, 2023
Aug 9, 2023
Jul 31, 2023
Jul 31, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Nov 8, 2022
Sep 29, 2022
Decision to grant a European patent
Search/Exam
Sep 15, 2022
(Electronic) Receipt
Search/Exam
Sep 15, 2022
Filing of the translations of the claims
Search/Exam
Sep 15, 2022
French translation of claims
Search/Exam
Sep 15, 2022
German translation of the claims
Search/Exam
Sep 15, 2022
Letter accompanying subsequently filed items
Search/Exam
May 18, 2022
May 18, 2022
May 18, 2022
Intention to grant (signatures)
Search/Exam
May 18, 2022
Text intended for grant (clean copy)
Search/Exam
May 18, 2022
Apr 6, 2022
Document concerning representation
Search/Exam
Feb 4, 2022
(Electronic) Receipt
Search/Exam
Feb 4, 2022
Amended description with annotations
Search/Exam
Feb 4, 2022
Description
Search/Exam
Feb 4, 2022
Letter accompanying subsequently filed items
Search/Exam
Feb 4, 2022
Oct 26, 2021
Annex to the communication
Search/Exam
Oct 26, 2021
Communication from the Examining Division
Search/Exam
Aug 18, 2021
(Electronic) Receipt
Search/Exam
Aug 18, 2021
Amended claims with annotations
Search/Exam
Aug 18, 2021
Claims
Search/Exam
Aug 18, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Jun 25, 2021
Jun 22, 2021
(Electronic) Receipt
Search/Exam
Jun 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 22, 2021
Mar 8, 2021
Mar 8, 2021
Mar 2, 2021
(Electronic) Receipt
Search/Exam
Mar 2, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 2, 2021
Non-patent literature filed by a third party
Search/Exam
Mar 2, 2021
Non-patent literature filed by a third party
Search/Exam
Mar 2, 2021
Non-patent literature filed by a third party
Search/Exam
Mar 2, 2021
Non-patent literature filed by a third party
Search/Exam
Mar 2, 2021
Non-patent literature filed by a third party
Search/Exam
Mar 2, 2021
Observations by third parties
Search/Exam
Mar 2, 2021
Patent document filed by a Third party
Search/Exam
Mar 2, 2021
Patent document filed by a Third party
Search/Exam
Feb 23, 2021
Annex to the communication
Search/Exam
Feb 23, 2021
Communication from the Examining Division
Search/Exam
Feb 18, 2021
Examination started
Search/Exam
Jul 15, 2020
(Electronic) Receipt
Search/Exam
Jul 15, 2020
Jul 15, 2020
Amended claims with annotations
Search/Exam
Jul 15, 2020
Amendments received before examination
Search/Exam
Jul 15, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 11, 2020
Jan 17, 2020
Jan 8, 2020
Communication to designated inventor
Search/Exam
Jan 8, 2020
Communication to designated inventor
Search/Exam
Jan 3, 2020
Dec 30, 2019
(Electronic) Receipt
Search/Exam
Dec 30, 2019
Request for entry into the European phase
Search/Exam
Dec 17, 2019
Oct 11, 2019
Information on entry into European phase
Search/Exam
Jan 8, 2019
Jan 8, 2019
Dec 6, 2018
Copy of the international search report
Search/Exam
Dec 6, 2018
Published international application - A1
Search/Exam
Aug 22, 2018
ISR: cited documents
PCTISA
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Jul 6, 2018
Jun 15, 2018
Abstract
PCTISA
Jun 15, 2018
Annex
PCTISA
Jun 15, 2018
Claims
PCTISA
Jun 15, 2018
Description
PCTISA
Jun 15, 2018
Drawings
PCTISA
Jun 15, 2018
Jun 15, 2018
Jun 15, 2018
Jun 15, 2018