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The patent EP3766146 was granted to Whner Besitz on Dec 14, 2022. The application was filed on Feb 21, 2019 under application number EP19705204A. 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 |
|---|---|---|---|
| RITTAL | Sep 14, 2023 | ANGERHAUSEN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE4109040 |
| INTERNATIONAL-SEARCH-REPORT | WO2017198642 |
| OPPOSITION | DE102005060586 |
| OPPOSITION | DE102007027918 |
| OPPOSITION | DE102016107565 |
| OPPOSITION | DE4109040 |
| OPPOSITION | EP2863496 |
| OPPOSITION | EP3246995 |
| OPPOSITION | EP3246996 |
| OPPOSITION | EP3540872 |
| OPPOSITION | WO2013138853 |
| OPPOSITION | WO2015084331 |
| OPPOSITION | WO2017198642 |
| OPPOSITION | WO2019174886 |
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 6, 2025
Nov 6, 2025
Nov 3, 2025
(Electronic) Receipt
Appeal
Nov 3, 2025
(Electronic) Receipt
Appeal
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Description
Appeal
Nov 3, 2025
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Sep 1, 2025
(Electronic) Receipt
Appeal
Sep 1, 2025
Notice of appeal
Appeal
Sep 1, 2025
Notice of appeal
Appeal
Aug 29, 2025
(Electronic) Receipt
Appeal
Aug 29, 2025
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Notice of appeal
Appeal
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Means of redress
OPPO
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Decision to grant a European patent
Search/Exam
Nov 8, 2022
(Electronic) Receipt
Search/Exam
Nov 8, 2022
Filing of the translations of the claims
Search/Exam
Nov 8, 2022
French translation of claims
Search/Exam
Nov 8, 2022
German translation of the claims
Search/Exam
Jul 18, 2022
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Intention to grant (signatures)
Search/Exam
Jul 18, 2022
Text intended for grant (clean copy)
Search/Exam
Jul 18, 2022
Apr 26, 2022
(Electronic) Receipt
Search/Exam
Apr 26, 2022
Amended claims with annotations
Search/Exam
Apr 26, 2022
Claims
Search/Exam
Apr 26, 2022
Letter accompanying subsequently filed items
Search/Exam
Apr 26, 2022
Feb 18, 2022
Annex to the communication
Search/Exam
Feb 18, 2022
Communication from the Examining Division
Search/Exam
Dec 23, 2021
(Electronic) Receipt
Search/Exam
Dec 23, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 23, 2021
Aug 19, 2021
Annex to the communication
Search/Exam
Aug 19, 2021
Communication from the Examining Division
Search/Exam
Aug 16, 2021
Examination started
Search/Exam
Apr 30, 2021
(Electronic) Receipt
Search/Exam
Apr 30, 2021
Apr 30, 2021
Amended claims with annotations
Search/Exam
Apr 30, 2021
Apr 30, 2021
Amended description with annotations
Search/Exam
Apr 30, 2021
Amendments received before examination
Search/Exam
Apr 30, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 23, 2020
Dec 10, 2020
Document concerning representation
Search/Exam
Oct 23, 2020
Oct 20, 2020
Communication to designated inventor
Search/Exam
Oct 20, 2020
Communication to designated inventor
Search/Exam
Oct 20, 2020
Communication to designated inventor
Search/Exam
Oct 20, 2020
Communication to designated inventor
Search/Exam
Oct 17, 2020
Priority search results copy provided by EPO
Search/Exam
Oct 6, 2020
(Electronic) Receipt
Search/Exam
Oct 6, 2020
Request for entry into the European phase
Search/Exam
Sep 28, 2020
Jul 24, 2020
Information on entry into European phase
Search/Exam
Oct 8, 2019
Sep 19, 2019
Copy of the international search report
Search/Exam
Sep 19, 2019
Published international application - A1
Search/Exam
Apr 25, 2019
(Electronic) Receipt
PCTRO
Apr 25, 2019
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Feb 27, 2019
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Feb 21, 2019
(Electronic) Receipt
PCTRO
Feb 21, 2019
Abstract
PCTRO
Feb 21, 2019
Claims
PCTRO
Feb 21, 2019
Description
PCTRO
Feb 21, 2019
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Drawings
PCTRO
Feb 21, 2019
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