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The patent EP3371452 was granted to Arelik Anonim Sirketi on Mar 4, 2020. The application was filed on Nov 6, 2015 under application number EP15791589A. 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 |
|---|---|---|---|
| SECOP | Dec 3, 2020 | KLIMENT & HENHAPEL | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CA1172325 |
| INTERNATIONAL-SEARCH-REPORT | EP0793068 |
| INTERNATIONAL-SEARCH-REPORT | EP1111316 |
| INTERNATIONAL-SEARCH-REPORT | EP2894333 |
| INTERNATIONAL-SEARCH-REPORT | GB2288082 |
| INTERNATIONAL-SEARCH-REPORT | US2004027790 |
| INTERNATIONAL-SEARCH-REPORT | US6375439 |
| INTERNATIONAL-SEARCH-REPORT | WO2007012961 |
| OPPOSITION | EP0793068 |
| OPPOSITION | EP1111316 |
| OPPOSITION | EP2894333 |
| OPPOSITION | GB2288082 |
| OPPOSITION | US2004027790 |
| OPPOSITION | US6375439 |
| OPPOSITION | WO2007012961 |
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 23, 2025
Dec 17, 2025
(Electronic) Receipt
Appeal
Dec 17, 2025
Dec 17, 2025
Nov 7, 2025
Nov 5, 2025
(Electronic) Receipt
Appeal
Nov 5, 2025
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(Electronic) Receipt
Appeal
Jan 20, 2025
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(Electronic) Receipt
Appeal
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Nov 7, 2024
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(Electronic) Receipt
Appeal
Jul 24, 2024
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Feb 19, 2024
(Electronic) Receipt
Appeal
Feb 19, 2024
Feb 19, 2024
Reply to appeal
Appeal
Oct 11, 2023
Oct 6, 2023
(Electronic) Receipt
Appeal
Oct 6, 2023
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Aug 3, 2023
(Electronic) Receipt
Appeal
Aug 3, 2023
Aug 3, 2023
Notice of appeal
Appeal
Jun 29, 2023
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OPPO
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Authorisation
OPPO
Mar 5, 2021
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Mar 16, 2020
Feb 6, 2020
Decision to grant a European patent
Search/Exam
Jan 23, 2020
(Electronic) Receipt
Search/Exam
Jan 23, 2020
French translation of claims
Search/Exam
Jan 23, 2020
German translation of the claims
Search/Exam
Jan 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 9, 2020
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Intention to grant (signatures)
Search/Exam
Jan 9, 2020
Text intended for grant (clean copy)
Search/Exam
Jan 9, 2020
Nov 29, 2019
Examination started
Search/Exam
May 31, 2019
May 24, 2019
Dec 14, 2018
(Electronic) Receipt
Search/Exam
Dec 14, 2018
Dec 14, 2018
Amended claims with annotations
Search/Exam
Dec 14, 2018
Dec 14, 2018
Amended description with annotations
Search/Exam
Dec 14, 2018
Amendments received before examination
Search/Exam
Dec 14, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 17, 2018
Submission concerning representation
Search/Exam
Aug 16, 2018
Jun 13, 2018
Jun 11, 2018
Communication to designated inventor
Search/Exam
Jun 11, 2018
Communication to designated inventor
Search/Exam
May 23, 2018
Mar 23, 2018
Information regarding early processing
Search/Exam
Mar 16, 2018
Information on entry into European phase
Search/Exam
Feb 28, 2018
(Electronic) Receipt
Search/Exam
Feb 28, 2018
Request for entry into the European phase
Search/Exam
May 11, 2017
Copy of the international search report
Search/Exam
May 11, 2017
Published international application - A1
Search/Exam
Jul 21, 2016
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Feb 18, 2016
Nov 13, 2015
Nov 6, 2015
(Electronic) Receipt
PCTRO
Nov 6, 2015
Abstract
PCTRO
Nov 6, 2015
Claims
PCTRO
Nov 6, 2015
Description
PCTRO
Nov 6, 2015
Nov 6, 2015
Drawings
PCTRO
Nov 6, 2015