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The patent EP3963232 was granted to Berndorf on Jun 7, 2023. The application was filed on Apr 28, 2020 under application number EP20730964A. 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 |
|---|---|---|---|
| HEIMBACH | Mar 7, 2024 | PAUL & ALBRECHT PATENTANWALTE PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | AT514722B |
| DESCRIPTION | US3728066 |
| INTERNATIONAL-SEARCH-REPORT | DE20110653U |
| INTERNATIONAL-SEARCH-REPORT | EP0393505 |
| INTERNATIONAL-SEARCH-REPORT | JP2009069122 |
| INTERNATIONAL-SEARCH-REPORT | US5681612 |
| INTERNATIONAL-SEARCH-REPORT | WO2016123645 |
| OPPOSITION | DE102006040056 |
| OPPOSITION | DE19702138 |
| OPPOSITION | DE4411620 |
| OPPOSITION | EP0576115 |
| OPPOSITION | EP0815948 |
| OPPOSITION | EP1877620 |
| OPPOSITION | JP2009069122 |
| OPPOSITION | WO2012143246 |
| OPPOSITION | WO2013020745 |
| OPPOSITION | WO2016123645 |
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 27, 2025
Refund of fees
Search/Exam
Oct 24, 2025
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(Electronic) Receipt
Appeal
Oct 10, 2025
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Withdrawal of an appeal
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Aug 27, 2025
Authorisation
Appeal
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Authorisation
Appeal
Aug 27, 2025
Notice of appeal
Appeal
Aug 27, 2025
Notice of appeal
Appeal
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OPPO
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Decision to grant a European patent
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(Electronic) Receipt
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(Electronic) Receipt
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Feb 17, 2023
Annexes in respect of a client data request
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Feb 17, 2023
Authorisation
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Feb 17, 2023
English translation of the claims
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Feb 17, 2023
Filing of the translations of the claims
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Feb 17, 2023
French translation of claims
Search/Exam
Feb 17, 2023
Letter accompanying subsequently filed items
Search/Exam
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Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Oct 21, 2022
Text intended for grant (clean copy)
Search/Exam
Oct 21, 2022
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Examination started
Search/Exam
Feb 9, 2022
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(Electronic) Receipt
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Nov 26, 2021
Request for entry into the European phase
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Information on entry into European phase
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Notification of election of EPO
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PCT demand form
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Copy of the international search report
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Nov 5, 2020
Copy of the international search report
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Published international application - A1
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ISR: cited documents
PCTISA
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Abstract
PCTISA
Jun 4, 2020
Claims
PCTISA
Jun 4, 2020
Description
PCTISA
Jun 4, 2020
Drawings
PCTISA
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