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The patent EP3852980 was granted to SW Stahl on Jun 7, 2023. The application was filed on Sep 9, 2020 under application number EP20799998A. 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 |
|---|---|---|---|
| BANDPAY & GREUTER | Mar 6, 2024 | BANDPAY & GREUTER | ADMISSIBLE |
| KS TOOLS WERKZEUGE UND MASCHINEN | Mar 5, 2024 | VIERING | ADMISSIBLE |
| MACHAN | Mar 5, 2024 | MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US2010171399 |
| OPPOSITION | CN2488378Y |
| OPPOSITION | DE202006002177U |
| OPPOSITION | DE202011004137U |
| OPPOSITION | DE202015100644U |
| OPPOSITION | DE202018100948U |
| OPPOSITION | DE202018100949U |
| OPPOSITION | DE4315452 |
| OPPOSITION | GB2480322 |
| OPPOSITION | GB957177 |
| OPPOSITION | KR101730417B |
| OPPOSITION | KR101848366B |
| OPPOSITION | TWM278293U |
| OPPOSITION | US2006186776 |
| OPPOSITION | US2007283733 |
| OPPOSITION | US2010171399 |
| OPPOSITION | US2012126674 |
| OPPOSITION | US2013328661 |
| OPPOSITION | US2015376917 |
| OPPOSITION | US2017018136 |
| OPPOSITION | US3401998 |
| OPPOSITION | US3893740 |
| OPPOSITION | US4438606 |
| OPPOSITION | US4732434 |
| OPPOSITION | US5931548 |
| OPPOSITION | US6378963 |
| OPPOSITION | US7309114 |
| OPPOSITION | US8651591 |
| OPPOSITION | WO2012041460 |
| OPPOSITION | WO2018007197 |
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 3, 2025
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Nov 28, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Sep 30, 2025
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Notice of appeal
Appeal
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OPPO
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Letter accompanying subsequently filed items
Search/Exam
Feb 26, 2024
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Decision to grant a European patent
Search/Exam
Jan 13, 2023
English translation of the claims
Search/Exam
Jan 13, 2023
Filing of the translations of the claims
Search/Exam
Jan 13, 2023
French translation of claims
Search/Exam
Jan 11, 2023
English translation of the claims
Search/Exam
Jan 11, 2023
Filing of the translations of the claims
Search/Exam
Jan 11, 2023
French translation of claims
Search/Exam
Jan 9, 2023
(Electronic) Receipt
Search/Exam
Jan 9, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 9, 2023
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Intention to grant (signatures)
Search/Exam
Sep 8, 2022
Text intended for grant (clean copy)
Search/Exam
Sep 8, 2022
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Annex to the communication
Search/Exam
May 25, 2022
Communication from the Examining Division
Search/Exam
May 18, 2022
Examination started
Search/Exam
Mar 28, 2022
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(Electronic) Receipt
Search/Exam
Feb 10, 2022
Enquiry as to the processing of the file
Search/Exam
Feb 10, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 8, 2021
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Matter concerning the application
Search/Exam
May 11, 2021
Matter concerning the application
Search/Exam
Apr 29, 2021
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Amendments received before examination
Search/Exam
Apr 15, 2021
Matter concerning the application
Search/Exam
Apr 15, 2021
Request for entry into the European phase
Search/Exam
Apr 6, 2021
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Amendments received before examination
Search/Exam
Mar 25, 2021
Request for entry into the European phase
Search/Exam
Mar 18, 2021
Copy of the international search report
Search/Exam
Mar 18, 2021
Copy of the international search report
Search/Exam
Mar 18, 2021
Published international application - A1
Search/Exam
Nov 24, 2020
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ISR: cited documents
PCTISA
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Abstract
PCTISA
Oct 18, 2020
Claims
PCTISA
Oct 18, 2020
Description
PCTISA
Oct 18, 2020
Drawings
PCTISA
Oct 18, 2020
Oct 18, 2020