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The patent EP3292447 was granted to Essilor on Aug 13, 2025. The application was filed on May 29, 2015 under application number EP15778998A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| INSIGHT STUDIO LEGALE | Jul 12, 2023 | PRAXI MILANO | ADMISSIBLE |
| RODENSTOCK | Jul 12, 2023 | SCHLOTTER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN103940377 |
| INTERNATIONAL-SEARCH-REPORT | EP2645193 |
| INTERNATIONAL-SEARCH-REPORT | US2007153271 |
| INTERNATIONAL-SEARCH-REPORT | US2013236262 |
| INTERNATIONAL-SEARCH-REPORT | US2014368790 |
| INTERNATIONAL-SEARCH-REPORT | WO2014084247 |
| OPPOSITION | CN103940377 |
| OPPOSITION | EP2645193 |
| OPPOSITION | EP2927733 |
| OPPOSITION | US2005157254 |
| OPPOSITION | US2007153271 |
| OPPOSITION | US2013084778 |
| OPPOSITION | US2013236262 |
| OPPOSITION | US2014368790 |
| OPPOSITION | US7033024 |
| OPPOSITION | WO2012156322 |
| OPPOSITION | WO2013087696 |
| OPPOSITION | WO2013087860 |
| OPPOSITION | WO2014084247 |
| OPPOSITION | WO2014173781 |
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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Jul 17, 2025
Jul 17, 2025
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Apr 15, 2025
Refund of fees
Search/Exam
Apr 14, 2025
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Apr 1, 2025
(Electronic) Receipt
Appeal
Apr 1, 2025
Apr 1, 2025
Withdrawal of an appeal
Appeal
Feb 26, 2025
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(Electronic) Receipt
Appeal
Feb 20, 2025
(Electronic) Receipt
Appeal
Feb 20, 2025
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Notice of appeal
Appeal
Feb 20, 2025
Notice of appeal
Appeal
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Authorisation
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Authorisation
OPPO
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Oct 25, 2022
Sep 15, 2022
Decision to grant a European patent
Search/Exam
Sep 1, 2022
(Electronic) Receipt
Search/Exam
Sep 1, 2022
Filing of the translations of the claims
Search/Exam
Sep 1, 2022
French translation of claims
Search/Exam
Sep 1, 2022
German translation of the claims
Search/Exam
Jun 1, 2022
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Intention to grant (signatures)
Search/Exam
Jun 1, 2022
Text intended for grant (clean copy)
Search/Exam
Jun 1, 2022
Apr 7, 2022
(Electronic) Receipt
Search/Exam
Apr 7, 2022
Amended claims with annotations
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Apr 7, 2022
Claims
Search/Exam
Apr 7, 2022
Letter accompanying subsequently filed items
Search/Exam
Apr 7, 2022
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Annex to the communication
Search/Exam
Feb 9, 2022
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Apr 21, 2021
(Electronic) Receipt
Search/Exam
Apr 21, 2021
Amended claims with annotations
Search/Exam
Apr 21, 2021
Claims
Search/Exam
Apr 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 21, 2021
Dec 22, 2020
Annex to the communication
Search/Exam
Dec 22, 2020
Communication from the Examining Division
Search/Exam
Dec 16, 2020
Examination started
Search/Exam
May 2, 2018
(Electronic) Receipt
Search/Exam
May 2, 2018
Letter accompanying subsequently filed items
Search/Exam
May 2, 2018
Reply to Written Opinion prepared by the EPO
Search/Exam
Mar 19, 2018
Mar 9, 2018
Annexes in respect of a client data request
Search/Exam
Feb 14, 2018
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Dec 21, 2017
Dec 15, 2017
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Communication to designated inventor
Search/Exam
Dec 13, 2017
Communication to designated inventor
Search/Exam
Dec 6, 2017
(Electronic) Receipt
Search/Exam
Dec 6, 2017
Letter concerning fees and payments
Search/Exam
Nov 27, 2017
Information regarding early processing
Search/Exam
Nov 22, 2017
(Electronic) Receipt
Search/Exam
Nov 22, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 22, 2017
Matter concerning the application
Search/Exam
Nov 16, 2017
Notice on debiting of fees
Search/Exam
Nov 8, 2017
Letter which had not been notified
Search/Exam
Oct 24, 2017
(Electronic) Receipt
Search/Exam
Oct 24, 2017
Request for entry into the European phase
Search/Exam
Oct 13, 2017
Information on entry into European phase
Search/Exam
Dec 8, 2016
Copy of the international search report
Search/Exam
Dec 8, 2016
Published international application - A1
Search/Exam
Feb 16, 2016
ISR: cited documents
PCTISA
Feb 12, 2016
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Oct 27, 2015
Oct 9, 2015
Abstract
PCTISA
Oct 9, 2015
Claims
PCTISA
Oct 9, 2015
Description
PCTISA
Oct 9, 2015
Drawings
PCTISA
Oct 9, 2015