The weekly litigation news digest is live. Subscribe now
The patent EP3134933 was granted to Erachem Comilog on Oct 21, 2020. The application was filed on Apr 20, 2015 under application number EP15783473A. 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 |
|---|---|---|---|
| MARKUS REINHARDT | Jul 19, 2021 | REINHARDT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2010251221 |
| DESCRIPTION | JP2011251862 |
| DESCRIPTION | KR100610596B |
| DESCRIPTION | US2002046955 |
| DESCRIPTION | US2002136955 |
| EXAMINATION | US2005227145 |
| INTERNATIONAL-SEARCH-REPORT | US2002046955 |
| INTERNATIONAL-SEARCH-REPORT | US2005025699 |
| INTERNATIONAL-SEARCH-REPORT | US2011220842 |
| INTERNATIONAL-SEARCH-REPORT | US2013330268 |
| INTERNATIONAL-SEARCH-REPORT | US4405419 |
| OPPOSITION | CN101774645 |
| OPPOSITION | JP2002348693 |
| OPPOSITION | JP2010251221 |
| OPPOSITION | JP2011251862 |
| OPPOSITION | KR100610596B |
| OPPOSITION | US2002046955 |
| OPPOSITION | US2002136955 |
| OPPOSITION | US2005227145 |
| OPPOSITION | US2013330268 |
| OPPOSITION | US4405419 |
| OPPOSITION | WO2011085438 |
| SEARCH | CA385405 |
| SEARCH | JP2010251221 |
| SEARCH | JP2011251862 |
| SEARCH | KR100610596B |
| SEARCH | US2002136955 |
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
Mar 13, 2025
Mar 13, 2025
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Means of redress
OPPO
Dec 6, 2024
Nov 14, 2024
Nov 14, 2024
Nov 8, 2024
Nov 8, 2024
Nov 5, 2024
Nov 5, 2024
Nov 5, 2024
Authorisation
OPPO
Nov 5, 2024
Nov 5, 2024
Nov 5, 2024
Nov 5, 2024
May 6, 2024
May 6, 2024
May 6, 2024
May 6, 2024
May 6, 2024
May 6, 2024
May 6, 2024
Mar 14, 2022
Mar 9, 2022
Mar 9, 2022
Mar 9, 2022
Mar 9, 2022
Mar 9, 2022
Dec 17, 2021
Dec 13, 2021
Dec 13, 2021
Dec 13, 2021
Dec 13, 2021
Dec 13, 2021
Dec 13, 2021
Dec 13, 2021
Dec 13, 2021
Dec 13, 2021
Dec 13, 2021
Dec 13, 2021
Aug 3, 2021
Aug 3, 2021
Jul 22, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Nov 2, 2020
Sep 24, 2020
Decision to grant a European patent
Search/Exam
Sep 15, 2020
Sep 9, 2020
(Electronic) Receipt
Search/Exam
Sep 9, 2020
Filing of the translations of the claims
Search/Exam
Sep 9, 2020
French translation of claims
Search/Exam
Sep 9, 2020
German translation of the claims
Search/Exam
Sep 9, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 3, 2020
Jun 3, 2020
Jun 3, 2020
Intention to grant (signatures)
Search/Exam
Jun 3, 2020
Text intended for grant (clean copy)
Search/Exam
Jun 3, 2020
May 20, 2020
Letter dealing with oral proceedings
Search/Exam
May 18, 2020
May 7, 2020
(Electronic) Receipt
Search/Exam
May 7, 2020
Amended description with annotations
Search/Exam
May 7, 2020
Claims
Search/Exam
May 7, 2020
Description
Search/Exam
May 7, 2020
Letter accompanying subsequently filed items
Search/Exam
May 7, 2020
Letter dealing with oral proceedings
Search/Exam
Apr 30, 2020
Apr 28, 2020
Annex to the communication
Search/Exam
Apr 28, 2020
Consultation by telephone/in person
Search/Exam
Apr 28, 2020
Apr 22, 2020
Observations by third parties
Search/Exam
Apr 9, 2020
(Electronic) Receipt
Search/Exam
Apr 9, 2020
Amended claims with annotations
Search/Exam
Apr 9, 2020
Amended description with annotations
Search/Exam
Apr 9, 2020
Claims
Search/Exam
Apr 9, 2020
Description
Search/Exam
Apr 9, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 9, 2020
Letter dealing with oral proceedings
Search/Exam
Dec 19, 2019
Acknowledgement of a document
Search/Exam
Dec 12, 2019
Acknowledgement of a document
Search/Exam
Dec 12, 2019
Annex to the communication
Search/Exam
Dec 12, 2019
Summons to attend oral proceedings
Search/Exam
Dec 10, 2019
Nov 21, 2019
Annexes in respect of a client data request
Search/Exam
Nov 21, 2019
Jul 10, 2019
Jul 2, 2019
Observations by third parties
Search/Exam
Jul 2, 2019
Observations by third parties
Search/Exam
Jun 27, 2019
Non-scannable object
Search/Exam
Jun 27, 2019
Observations by third parties
Search/Exam
Jun 27, 2019
Observations by third parties
Search/Exam
Jun 27, 2019
Jun 24, 2019
(Electronic) Receipt
Search/Exam
Jun 24, 2019
Description
Search/Exam
Jun 24, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 24, 2019
Jun 24, 2019
Jun 18, 2019
Observations by third parties
Search/Exam
Jun 18, 2019
Observations by third parties
Search/Exam
Jun 18, 2019
Observations by third parties
Search/Exam
Jun 18, 2019
Observations by third parties
Search/Exam
Jun 18, 2019
Observations by third parties
Search/Exam
Jun 18, 2019
Observations by third parties
Search/Exam
Jun 18, 2019
Patent document filed by a Third party
Search/Exam
Apr 29, 2019
Apr 23, 2019
Feb 21, 2019
Feb 14, 2019
Observations by third parties
Search/Exam
Dec 20, 2018
Annex to the communication
Search/Exam
Dec 20, 2018
Communication from the Examining Division
Search/Exam
Dec 14, 2018
Examination started
Search/Exam
Sep 10, 2018
(Electronic) Receipt
Search/Exam
Sep 10, 2018
Sep 10, 2018
Amended claims with annotations
Search/Exam
Sep 10, 2018
Sep 10, 2018
Amendments received before examination
Search/Exam
Sep 10, 2018
Letter accompanying subsequently filed items
Search/Exam
Feb 27, 2018
Feb 9, 2018
Feb 9, 2018
Feb 9, 2018
European search opinion
Search/Exam
Feb 9, 2018
Information on Search Strategy
Search/Exam
Feb 9, 2018
Supplementary European search report
Search/Exam
Jan 9, 2018
Amendments not yet acceptable
Search/Exam
Dec 21, 2017
(Electronic) Receipt
Search/Exam
Dec 21, 2017
Annex
Search/Exam
Dec 21, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 21, 2017
Dec 14, 2017
Dec 1, 2017
(Electronic) Receipt
Search/Exam
Dec 1, 2017
Annexes in respect of a client data request
Search/Exam
Dec 1, 2017
Nov 2, 2017
Oct 11, 2017
Annex to the communication
Search/Exam
Oct 11, 2017
Sep 28, 2017
Search started
Search/Exam
Sep 14, 2017
(Electronic) Receipt
Search/Exam
Sep 14, 2017
General enquiry
Search/Exam
Sep 14, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 14, 2017
Jun 2, 2017
Feb 28, 2017
Communication to designated inventor
Search/Exam
Feb 21, 2017
Letter concerning the inventor
Search/Exam
Feb 2, 2017
Feb 1, 2017
Jan 12, 2017
Letter which had not been notified
Search/Exam
Dec 1, 2016
Nov 25, 2016
Communication to designated inventor
Search/Exam
Nov 25, 2016
Communication to designated inventor
Search/Exam
Nov 25, 2016
Communication to designated inventor
Search/Exam
Nov 8, 2016
(Electronic) Receipt
Search/Exam
Nov 8, 2016
Nov 8, 2016
Request for entry into the European phase
Search/Exam
Nov 7, 2016
Sep 2, 2016
Information on entry into European phase
Search/Exam
Nov 16, 2015
Oct 29, 2015
Copy of the international search report
Search/Exam
Oct 29, 2015
Published international application - A1
Search/Exam