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The patent EP2951357 was granted to VSL on Dec 13, 2017. The application was filed on Jan 29, 2013 under application number EP13702023A. 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 |
|---|---|---|---|
| SOLETANCHE FREYSSINET | Sep 13, 2018 | CABINET BEAU DE LOMENIE | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | DE19625039 |
| INTERNATIONAL-SEARCH-REPORT | DE19838513 |
| INTERNATIONAL-SEARCH-REPORT | US5924222 |
| OPPOSITION | DE19625039 |
| OPPOSITION | DE19838513 |
| OPPOSITION | US4548442 |
| OPPOSITION | US5035071 |
| OPPOSITION | US5626201 |
| OPPOSITION | US5924222 |
| OPPOSITION | WO2010050872 |
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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Dec 1, 2025
Nov 25, 2025
(Electronic) Receipt
Appeal
Nov 25, 2025
Nov 25, 2025
Claims
Appeal
Nov 25, 2025
Nov 25, 2025
Reply to appeal
Appeal
Jul 31, 2025
Jul 9, 2025
(Electronic) Receipt
Appeal
Jul 9, 2025
Jul 9, 2025
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May 2, 2025
Apr 25, 2025
(Electronic) Receipt
Appeal
Apr 25, 2025
Apr 25, 2025
Notice of appeal
Appeal
Mar 12, 2025
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(Electronic) Receipt
Appeal
May 12, 2023
May 12, 2023
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(Electronic) Receipt
Appeal
May 5, 2023
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Mar 24, 2023
(Electronic) Receipt
Appeal
Mar 24, 2023
Mar 24, 2023
Sep 19, 2022
Sep 12, 2022
(Electronic) Receipt
Appeal
Sep 12, 2022
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Sep 2, 2022
Aug 30, 2022
(Electronic) Receipt
Appeal
Aug 30, 2022
Aug 30, 2022
Jul 11, 2022
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Mar 12, 2022
Oct 6, 2020
Sep 30, 2020
(Electronic) Receipt
Appeal
Sep 30, 2020
Sep 30, 2020
Reply to appeal
Appeal
Jun 3, 2020
May 25, 2020
(Electronic) Receipt
Appeal
May 25, 2020
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Mar 20, 2020
(Electronic) Receipt
Appeal
Mar 20, 2020
Mar 20, 2020
Notice of appeal
Appeal
Feb 3, 2020
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Jan 28, 2020
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Means of redress
OPPO
Jan 22, 2020
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Jan 16, 2018
Dec 21, 2017
Dec 6, 2017
Refund of fees
Search/Exam
Nov 16, 2017
Decision to grant a European patent
Search/Exam
Nov 8, 2017
Nov 7, 2017
Oct 27, 2017
(Electronic) Receipt
Search/Exam
Oct 27, 2017
Filing of the translations of the claims
Search/Exam
Oct 27, 2017
French translation of claims
Search/Exam
Oct 27, 2017
German translation of the claims
Search/Exam
Oct 27, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 11, 2017
Oct 4, 2017
Sep 29, 2017
Sep 27, 2017
Observations by third parties
Search/Exam
Jun 26, 2017
Jun 26, 2017
Jun 26, 2017
Intention to grant (signatures)
Search/Exam
Jun 26, 2017
Text intended for grant (clean copy)
Search/Exam
Jun 26, 2017
May 29, 2017
May 18, 2017
Jan 16, 2017
(Electronic) Receipt
Search/Exam
Jan 16, 2017
Amended claims with annotations
Search/Exam
Jan 16, 2017
Amended description with annotations
Search/Exam
Jan 16, 2017
Annex
Search/Exam
Jan 16, 2017
Jan 16, 2017
Claims
Search/Exam
Jan 16, 2017
Description
Search/Exam
Jan 16, 2017
Letter accompanying subsequently filed items
Search/Exam
Jan 16, 2017
Jan 12, 2017
Jan 12, 2017
Jan 6, 2017
Dec 27, 2016
Aug 29, 2016
Annex to the communication
Search/Exam
Aug 29, 2016
Communication from the Examining Division
Search/Exam
Aug 23, 2016
Examination started
Search/Exam
Mar 18, 2016
(Electronic) Receipt
Search/Exam
Mar 18, 2016
Mar 18, 2016
Amended claims with annotations
Search/Exam
Mar 18, 2016
Mar 18, 2016
Amended description with annotations
Search/Exam
Mar 18, 2016
Amendments received before examination
Search/Exam
Mar 18, 2016
Letter accompanying subsequently filed items
Search/Exam
Nov 11, 2015
Sep 18, 2015
Sep 16, 2015
Communication to designated inventor
Search/Exam
Aug 17, 2015
Jul 21, 2015
(Electronic) Receipt
Search/Exam
Jul 21, 2015
Authorisation
Search/Exam
Jul 21, 2015
Request for entry into the European phase
Search/Exam
Jun 12, 2015
Information on entry into European phase
Search/Exam
Dec 3, 2013
Payment of fees and costs
Search/Exam
Oct 8, 2013
Oct 8, 2013
Oct 8, 2013
Mar 12, 2013
Jan 29, 2013
(Electronic) Receipt
PCTRO
Jan 29, 2013