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The patent EP3406576 was granted to Jushi Group on Sep 15, 2021. The application was filed on Mar 21, 2016 under application number EP16779505A. 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 |
|---|---|---|---|
| OWENS CORNING CAPITAL | Jun 14, 2022 | HASELTINE LAKE KEMPNER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN103221354 |
| INTERNATIONAL-SEARCH-REPORT | CN105392744 |
| INTERNATIONAL-SEARCH-REPORT | CN1340034 |
| INTERNATIONAL-SEARCH-REPORT | US2007179038 |
| INTERNATIONAL-SEARCH-REPORT | US2013143459 |
| OPPOSITION | CN102276153 |
| OPPOSITION | CN103086605 |
| OPPOSITION | EP3406575 |
| OPPOSITION | EP3424889 |
| OPPOSITION | GB1147718 |
| OPPOSITION | GB2233643 |
| OPPOSITION | US2009286440 |
| OPPOSITION | US2016068428 |
| OPPOSITION | WO2014062715 |
| SEARCH | CN103086605 |
| SEARCH | EP3406575 |
| SEARCH | EP3424889 |
| SEARCH | WO2014062715 |
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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Oct 28, 2025
Oct 23, 2025
(Electronic) Receipt
Appeal
Oct 23, 2025
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(Electronic) Receipt
Appeal
Aug 22, 2025
Notice of appeal
Appeal
Jun 23, 2025
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Means of redress
OPPO
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Authorisation
OPPO
Nov 7, 2022
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Sep 28, 2021
Aug 19, 2021
Decision to grant a European patent
Search/Exam
Aug 6, 2021
(Electronic) Receipt
Search/Exam
Aug 6, 2021
Filing of the translations of the claims
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Aug 6, 2021
French translation of claims
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Aug 6, 2021
German translation of the claims
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Aug 6, 2021
Letter accompanying subsequently filed items
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May 26, 2021
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Intention to grant (signatures)
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May 26, 2021
Text intended for grant (clean copy)
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May 26, 2021
Apr 21, 2021
(Electronic) Receipt
Search/Exam
Apr 21, 2021
Amended claims with annotations
Search/Exam
Apr 21, 2021
Amended description with annotations
Search/Exam
Apr 21, 2021
Claims
Search/Exam
Apr 21, 2021
Description
Search/Exam
Apr 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 21, 2021
Feb 17, 2021
Annex to the communication
Search/Exam
Feb 17, 2021
Feb 17, 2021
Feb 3, 2021
Examination started
Search/Exam
May 13, 2020
(Electronic) Receipt
Search/Exam
May 13, 2020
Letter accompanying subsequently filed items
Search/Exam
May 13, 2020
Priority search results
Search/Exam
May 13, 2020
Apr 23, 2020
Apr 14, 2020
(Electronic) Receipt
Search/Exam
Apr 14, 2020
Apr 14, 2020
Amended claims with annotations
Search/Exam
Apr 14, 2020
Amendments received before examination
Search/Exam
Apr 14, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 20, 2019
(Electronic) Receipt
Search/Exam
Nov 20, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 20, 2019
Translation of priority document
Search/Exam
Oct 9, 2019
Oct 9, 2019
Sep 20, 2019
Sep 20, 2019
European search opinion
Search/Exam
Sep 20, 2019
Information on Search Strategy
Search/Exam
Sep 20, 2019
Supplementary European search report
Search/Exam
Sep 2, 2019
Search started
Search/Exam
Oct 31, 2018
Notification of forthcoming publication
Search/Exam
Oct 22, 2018
Oct 3, 2018
Oct 3, 2018
Oct 1, 2018
Oct 1, 2018
Reply by International Bureau
Search/Exam
Oct 1, 2018
Oct 1, 2018
Sep 21, 2018
Sep 20, 2018
Sep 12, 2018
Enquiry with the International Bureau
Search/Exam
Sep 10, 2018
Communication to designated inventor
Search/Exam
Sep 10, 2018
Communication to designated inventor
Search/Exam
Sep 10, 2018
Communication to designated inventor
Search/Exam
Sep 10, 2018
Communication to designated inventor
Search/Exam
Sep 10, 2018
Communication to designated inventor
Search/Exam
Aug 21, 2018
(Electronic) Receipt
Search/Exam
Aug 21, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 21, 2018
Matter concerning the application
Search/Exam
Jan 22, 2018
Dec 27, 2017
Letter concerning the inventor
Search/Exam
Dec 13, 2017
(Electronic) Receipt
Search/Exam
Dec 13, 2017
Abstract
Search/Exam
Dec 13, 2017
Dec 13, 2017
Dec 13, 2017
Amended claims with annotations
Search/Exam
Dec 13, 2017
Amendments received before examination
Search/Exam
Dec 13, 2017
Claims
Search/Exam
Dec 13, 2017
Description
Search/Exam
Dec 13, 2017
Request for entry into the European phase
Search/Exam
Aug 25, 2017
Information on entry into European phase
Search/Exam
Feb 2, 2017
Copy of the international search report
Search/Exam
Feb 2, 2017
Feb 2, 2017
Dec 19, 2016
Written Opinion of the ISA
Search/Exam
Nov 8, 2016
Oct 20, 2016
International publication pamphlet
Search/Exam