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The patent EP3699715 was granted to Nanjing Chervon Industry on Jan 5, 2022. The application was filed on Nov 16, 2018 under application number EP18879877A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| STIGA IN BREVE ANCHE ST | Oct 5, 2022 | PGA | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | EP2428107 |
| OPPOSITION | EP2939508 |
| OPPOSITION | EP3018548 |
| OPPOSITION | US2012246705 |
| OPPOSITION | US2015161165 |
| OPPOSITION | US2015177968 |
| OPPOSITION | US2016057925 |
| OPPOSITION | US2016091898 |
| OPPOSITION | US2016100522 |
| OPPOSITION | US2018064024 |
| OPPOSITION | US8989946 |
| OPPOSITION | US9483497 |
| OPPOSITION | US9508184 |
| OPPOSITION | USRE44550E |
| OPPOSITION | WO2013003451 |
| OPPOSITION | WO2016102141 |
| OPPOSITION | WO2016105609 |
| OPPOSITION | WO20161099616 |
| OPPOSITION | WO2018127209 |
| SEARCH | US2016100522 |
| SEARCH | WO2016102141 |
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.
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OPPO
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Dec 9, 2021
Decision to grant a European patent
Search/Exam
Nov 16, 2021
(Electronic) Receipt
Search/Exam
Nov 16, 2021
Filing of the translations of the claims
Search/Exam
Nov 16, 2021
French translation of claims
Search/Exam
Nov 16, 2021
German translation of the claims
Search/Exam
Oct 18, 2021
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Intention to grant (signatures)
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Oct 18, 2021
Text intended for grant (clean copy)
Search/Exam
Oct 18, 2021
Sep 16, 2021
Examination started
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Apr 22, 2021
(Electronic) Receipt
Search/Exam
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(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Mar 29, 2021
Amendments received before examination
Search/Exam
Mar 29, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 30, 2020
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European search opinion
Search/Exam
Oct 13, 2020
Information on Search Strategy
Search/Exam
Oct 13, 2020
Supplementary European search report
Search/Exam
Sep 25, 2020
Search started
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Jul 29, 2020
Notification of forthcoming publication
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Jun 4, 2020
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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May 22, 2020
(Electronic) Receipt
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May 22, 2020
Abstract
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Amended claims with annotations
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Amended description with annotations
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May 22, 2020
Claims
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May 22, 2020
Description
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May 22, 2020
Drawings
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May 22, 2020
Request for entry into the European phase
Search/Exam
Mar 27, 2020
Information on entry into European phase
Search/Exam
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Copy of the international search report
Search/Exam
May 23, 2019
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International publication pamphlet
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