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The patent EP3946920 was granted to Qwarzo on Feb 8, 2023. The application was filed on Jun 26, 2020 under application number EP20744130A. 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 |
|---|---|---|---|
| POLO PLAST | Jul 18, 2023 | MODIANO | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | FR1393377 |
| INTERNATIONAL-SEARCH-REPORT | US1504771 |
| INTERNATIONAL-SEARCH-REPORT | US2218525 |
| INTERNATIONAL-SEARCH-REPORT | US3452650 |
| OPPOSITION | EP1179633 |
| OPPOSITION | EP1825752 |
| OPPOSITION | JP2008050380 |
| OPPOSITION | US1378707 |
| OPPOSITION | US1504771 |
| OPPOSITION | US2218525 |
| OPPOSITION | US3452650 |
| OPPOSITION | US4349610 |
| OPPOSITION | WO2005026068 |
| OPPOSITION | WO2012047312 |
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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Decision to grant a European patent
Search/Exam
Dec 20, 2022
(Electronic) Receipt
Search/Exam
Dec 20, 2022
Filing of the translations of the claims
Search/Exam
Dec 20, 2022
French translation of claims
Search/Exam
Dec 20, 2022
German translation of the claims
Search/Exam
Dec 7, 2022
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Intention to grant (signatures)
Search/Exam
Dec 7, 2022
Text intended for grant (clean copy)
Search/Exam
Dec 7, 2022
Sep 2, 2022
(Electronic) Receipt
Search/Exam
Sep 2, 2022
Amended claims with annotations
Search/Exam
Sep 2, 2022
Amended description with annotations
Search/Exam
Sep 2, 2022
Claims
Search/Exam
Sep 2, 2022
Description
Search/Exam
Sep 2, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 2, 2022
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Annex to the communication
Search/Exam
Jul 29, 2022
Communication from the Examining Division
Search/Exam
May 13, 2022
(Electronic) Receipt
Search/Exam
May 13, 2022
Amended claims with annotations
Search/Exam
May 13, 2022
Claims
Search/Exam
May 13, 2022
Letter accompanying subsequently filed items
Search/Exam
May 13, 2022
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Annex to the communication
Search/Exam
Apr 7, 2022
Communication from the Examining Division
Search/Exam
Apr 4, 2022
Examination started
Search/Exam
Jan 12, 2022
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Nov 17, 2021
Nov 12, 2021
Priority search results copy provided by EPO
Search/Exam
Nov 5, 2021
Information on entry into European phase
Search/Exam
Nov 4, 2021
(Electronic) Receipt
Search/Exam
Nov 4, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 3, 2021
(Electronic) Receipt
Search/Exam
Nov 3, 2021
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Amended claims with annotations
Search/Exam
Nov 3, 2021
Amendments received before examination
Search/Exam
Nov 3, 2021
Request for entry into the European phase
Search/Exam
Oct 24, 2021
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Notification of the recording of a change
Search/Exam
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Notification of election of EPO
Search/Exam
May 6, 2021
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PCT demand form
PCT2
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Copy of the international search report
Search/Exam
Dec 30, 2020
Published international application - A1
Search/Exam
Nov 16, 2020
ISR: cited documents
PCTISA
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Annex
PCTISA
Jul 31, 2020
Jul 28, 2020
Abstract
PCTISA
Jul 28, 2020
Annex
PCTISA
Jul 28, 2020
Claims
PCTISA
Jul 28, 2020
Description
PCTISA
Jul 28, 2020
Drawings
PCTISA
Jul 28, 2020
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