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The patent EP3552947 was granted to Yujet on Mar 9, 2022. The application was filed on Apr 10, 2019 under application number EP19168436A. 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 |
|---|---|---|---|
| RADINN | Dec 9, 2022 | STROM & GULLIKSSON | ADMISSIBLE |
| WBV WEISENBURGER BAUVERWALTUNG | Nov 25, 2022 | GROTH | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | WO2017220000 |
| OPPOSITION | CN108061105 |
| OPPOSITION | CN110356524 |
| OPPOSITION | CN205675195U |
| OPPOSITION | CN205738032U |
| OPPOSITION | CN206494089U |
| OPPOSITION | CN207129115U |
| OPPOSITION | CN207670632U |
| OPPOSITION | CN208484799U |
| OPPOSITION | DE102017208399 |
| OPPOSITION | DE202017107824U |
| OPPOSITION | DE4430775 |
| OPPOSITION | DE68924314T |
| OPPOSITION | DE69601965T |
| OPPOSITION | EP1617095 |
| OPPOSITION | KR101767476B |
| OPPOSITION | US2001042498 |
| OPPOSITION | US2013157526 |
| OPPOSITION | US2014134900 |
| OPPOSITION | US2016068239 |
| OPPOSITION | US3536025 |
| OPPOSITION | US5017166 |
| OPPOSITION | US5050446 |
| OPPOSITION | WO2011100654 |
| OPPOSITION | WO2015039970 |
| OPPOSITION | WO2016061274 |
| OPPOSITION | WO2016099406 |
| OPPOSITION | WO2016193382 |
| OPPOSITION | WO2017069322 |
| OPPOSITION | WO2019129687 |
| OPPOSITION | WO2019143276 |
| SEARCH | CN205675195U |
| SEARCH | DE202017107820U |
| SEARCH | EP1977968 |
| SEARCH | WO2011100654 |
| SEARCH | WO2016099406 |
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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Nov 14, 2025
Nov 14, 2025
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(Electronic) Receipt
Appeal
Nov 5, 2025
(Electronic) Receipt
Appeal
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Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Mar 5, 2025
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Feb 10, 2022
Decision to grant a European patent
Search/Exam
Jan 31, 2022
(Electronic) Receipt
Search/Exam
Jan 31, 2022
Filing of the translations of the claims
Search/Exam
Jan 31, 2022
French translation of claims
Search/Exam
Jan 31, 2022
German translation of the claims
Search/Exam
Jan 31, 2022
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
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Sep 21, 2021
Text intended for grant (clean copy)
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Mar 19, 2021
(Electronic) Receipt
Search/Exam
Mar 19, 2021
Amended claims with annotations
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Mar 19, 2021
Claims
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Mar 19, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 19, 2021
Nov 10, 2020
Annex to the communication
Search/Exam
Nov 10, 2020
Communication from the Examining Division
Search/Exam
Nov 3, 2020
Examination started
Search/Exam
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Amended claims with annotations
Search/Exam
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Amended description with annotations
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Apr 17, 2020
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Search/Exam
Apr 14, 2020
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Amended claims with annotations
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Amended description with annotations
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Apr 14, 2020
Amendments received before examination
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Oct 31, 2019
Letter concerning the inventor
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Oct 29, 2019
Letter concerning the inventor
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Oct 21, 2019
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Sep 18, 2019
Notification of forthcoming publication
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Sep 6, 2019
Aug 29, 2019
Letter which had not been notified
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Aug 23, 2019
Annexes in respect of a client data request
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Aug 23, 2019
Annexes in respect of a client data request
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Aug 23, 2019
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European search opinion
Search/Exam
Jul 17, 2019
European search report
Search/Exam
Jul 17, 2019
Information on Search Strategy
Search/Exam
Jul 9, 2019
Search started
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Jul 3, 2019
Communication to designated inventor
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Jun 28, 2019
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Abstract
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Apr 10, 2019
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Claims
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Apr 10, 2019
Description
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Apr 10, 2019
Designation of inventor
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Apr 10, 2019
Drawings
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Apr 10, 2019
Request for grant of a European patent
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