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The patent EP3558556 was granted to Trumpf Maschinen Austria on Sep 17, 2025. The application was filed on Dec 19, 2017 under application number EP17835793A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| AMADA | Oct 27, 2021 | GRUNECKER PATENT | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2003136143 |
| INTERNATIONAL-SEARCH-REPORT | JP2015120182 |
| INTERNATIONAL-SEARCH-REPORT | US2014225494 |
| INTERNATIONAL-SEARCH-REPORT | WO2016055906 |
| OPPOSITION | EP2138247 |
| OPPOSITION | EP2865458 |
| OPPOSITION | EP2913114 |
| OPPOSITION | JP2001150032 |
| OPPOSITION | JPH1071499 |
| OPPOSITION | WO0041824 |
| OPPOSITION | WO2016055906 |
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.
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Description
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Oct 11, 2023
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Reply to appeal
Appeal
Jun 12, 2023
Jun 5, 2023
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Apr 4, 2023
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Notice of appeal
Appeal
Jan 25, 2023
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Means of redress
OPPO
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OPPO
Nov 11, 2022
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OPPO
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Decision to grant a European patent
Search/Exam
Dec 10, 2020
(Electronic) Receipt
Search/Exam
Dec 10, 2020
English translation of the claims
Search/Exam
Dec 10, 2020
Filing of the translations of the claims
Search/Exam
Dec 10, 2020
French translation of claims
Search/Exam
Dec 10, 2020
Letter accompanying subsequently filed items
Search/Exam
Aug 18, 2020
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Intention to grant (signatures)
Search/Exam
Aug 18, 2020
Text intended for grant (clean copy)
Search/Exam
Aug 18, 2020
Jul 8, 2020
Examination started
Search/Exam
Oct 2, 2019
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Jul 31, 2019
Communication to designated inventor
Search/Exam
Jul 31, 2019
Communication to designated inventor
Search/Exam
Jul 18, 2019
(Electronic) Receipt
Search/Exam
Jul 18, 2019
Request for entry into the European phase
Search/Exam
Jul 2, 2019
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May 6, 2019
Information on entry into European phase
Search/Exam
Dec 11, 2018
Notification of election of EPO
Search/Exam
Dec 4, 2018
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PCT demand form
PCT2
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Copy of the international search report
Search/Exam
Jun 28, 2018
Copy of the international search report
Search/Exam
Jun 28, 2018
Published international application - A1
Search/Exam
Mar 26, 2018
ISR: cited documents
PCTISA
Mar 26, 2018
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Abstract
PCTISA
Jan 27, 2018
Claims
PCTISA
Jan 27, 2018
Description
PCTISA
Jan 27, 2018
Drawings
PCTISA
Jan 27, 2018