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The patent EP3837067 was granted to Fill Gesellschaft on Aug 10, 2022. The application was filed on Aug 13, 2019 under application number EP19773332A. 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 |
|---|---|---|---|
| KS HUAYU ALUTECH | May 3, 2023 | TERPATENT PARTGMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2003205359 |
| INTERNATIONAL-SEARCH-REPORT | US5311918 |
| INTERNATIONAL-SEARCH-REPORT | US6443217 |
| INTERNATIONAL-SEARCH-REPORT | WO2005070591 |
| OPPOSITION | CA600798 |
| OPPOSITION | EP0824983 |
| OPPOSITION | EP3112053 |
| OPPOSITION | JP2003205359 |
| OPPOSITION | US4506722 |
| OPPOSITION | US5311918 |
| OPPOSITION | US6443217 |
| OPPOSITION | WO02055237 |
| OPPOSITION | WO2005070591 |
| OPPOSITION | WO2008128153 |
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
Dec 3, 2025
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Means of redress
OPPO
Dec 3, 2025
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Nov 2, 2023
Oct 26, 2023
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Aug 18, 2023
Aug 18, 2023
Authorisation
OPPO
Aug 18, 2023
Aug 18, 2023
May 25, 2023
May 25, 2023
May 10, 2023
May 4, 2023
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Aug 23, 2022
Jul 14, 2022
Decision to grant a European patent
Search/Exam
Jul 1, 2022
(Electronic) Receipt
Search/Exam
Jul 1, 2022
English translation of the claims
Search/Exam
Jul 1, 2022
Filing of the translations of the claims
Search/Exam
Jul 1, 2022
French translation of claims
Search/Exam
Jul 1, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 30, 2022
Mar 30, 2022
Mar 30, 2022
Intention to grant (signatures)
Search/Exam
Mar 30, 2022
Text intended for grant (clean copy)
Search/Exam
Mar 30, 2022
Feb 17, 2022
Examination started
Search/Exam
May 27, 2021
Mar 26, 2021
Mar 24, 2021
Communication to designated inventor
Search/Exam
Mar 24, 2021
Communication to designated inventor
Search/Exam
Mar 24, 2021
Communication to designated inventor
Search/Exam
Mar 24, 2021
Communication to designated inventor
Search/Exam
Mar 16, 2021
(Electronic) Receipt
Search/Exam
Mar 16, 2021
Mar 16, 2021
Amended claims with annotations
Search/Exam
Mar 16, 2021
Request for entry into the European phase
Search/Exam
Feb 22, 2021
Jan 12, 2021
Information on entry into European phase
Search/Exam
Nov 20, 2020
Nov 20, 2020
Nov 20, 2020
Nov 20, 2020
Nov 20, 2020
Oct 2, 2020
Oct 2, 2020
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Oct 2, 2020
Aug 4, 2020
Written opinion
PCT2
Aug 4, 2020
Aug 4, 2020
Jul 16, 2020
Notification of election of EPO
Search/Exam
Jul 3, 2020
Jun 23, 2020
Jun 15, 2020
Jun 15, 2020
PCT demand form
PCT2
Jun 15, 2020
Jun 15, 2020
Jun 15, 2020
Jun 15, 2020
Jun 15, 2020
Jun 15, 2020
Mar 10, 2020
Feb 20, 2020
Copy of the international search report
Search/Exam
Feb 20, 2020
Copy of the international search report
Search/Exam
Feb 20, 2020
Published international application - A1
Search/Exam
Oct 31, 2019
ISR: cited documents
PCTISA
Oct 31, 2019
Oct 31, 2019
Oct 31, 2019
Oct 31, 2019
Oct 7, 2019
Sep 21, 2019
Abstract
PCTISA
Sep 21, 2019
Claims
PCTISA
Sep 21, 2019
Description
PCTISA
Sep 21, 2019
Drawings
PCTISA
Sep 21, 2019