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The patent EP3523850 was granted to Thyssenkrupp on Jun 3, 2020. The application was filed on Sep 22, 2017 under application number EP17772033A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| SIEMENS ENERGY | Mar 2, 2021 | - | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CN102569851 |
| DESCRIPTION | US2004043724 |
| DESCRIPTION | US2012135326 |
| DESCRIPTION | US2013280635 |
| DESCRIPTION | US4976162 |
| INTERNATIONAL-SEARCH-REPORT | DE102004004624 |
| INTERNATIONAL-SEARCH-REPORT | DE102007051311 |
| INTERNATIONAL-SEARCH-REPORT | DE102014219164 |
| INTERNATIONAL-SEARCH-REPORT | DE19822697 |
| OPPOSITION | CN102569851 |
| OPPOSITION | DE102004004624 |
| OPPOSITION | DE102007051311 |
| OPPOSITION | DE102014219164 |
| OPPOSITION | DE19822697 |
| OPPOSITION | DE3826590 |
| OPPOSITION | JP2003092130 |
| OPPOSITION | US2013202976 |
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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General enquiry
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Decision to grant a European patent
Search/Exam
Apr 28, 2020
(Electronic) Receipt
Search/Exam
Apr 28, 2020
English translation of the claims
Search/Exam
Apr 28, 2020
Filing of the translations of the claims
Search/Exam
Apr 28, 2020
French translation of claims
Search/Exam
Mar 5, 2020
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Intention to grant (signatures)
Search/Exam
Mar 5, 2020
Text intended for grant (clean copy)
Search/Exam
Mar 5, 2020
Feb 5, 2020
Examination started
Search/Exam
Jan 27, 2020
(Electronic) Receipt
Search/Exam
Jan 27, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 27, 2020
Priority search results
Search/Exam
Jan 27, 2020
Priority search results
Search/Exam
Jan 27, 2020
Jan 15, 2020
Oct 10, 2019
Change to the inventor details
Search/Exam
Oct 1, 2019
(Electronic) Receipt
Search/Exam
Oct 1, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 1, 2019
Letter concerning the inventor
Search/Exam
Sep 30, 2019
(Electronic) Receipt
Search/Exam
Sep 30, 2019
Sep 30, 2019
Amended claims with annotations
Search/Exam
Sep 30, 2019
Sep 30, 2019
Amended description with annotations
Search/Exam
Sep 30, 2019
Amendments received before examination
Search/Exam
Sep 30, 2019
Letter accompanying subsequently filed items
Search/Exam
Sep 16, 2019
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Aug 15, 2019
Annexes in respect of a client data request
Search/Exam
Aug 15, 2019
Annexes in respect of a client data request
Search/Exam
Aug 15, 2019
Jul 26, 2019
(Electronic) Receipt
Search/Exam
Jul 26, 2019
General enquiry
Search/Exam
Jul 26, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 26, 2019
Request for correction of client data
Search/Exam
Jul 17, 2019
May 21, 2019
May 15, 2019
Communication to designated inventor
Search/Exam
May 15, 2019
Communication to designated inventor
Search/Exam
May 15, 2019
Communication to designated inventor
Search/Exam
May 15, 2019
Communication to designated inventor
Search/Exam
Apr 29, 2019
Feb 20, 2019
(Electronic) Receipt
Search/Exam
Feb 20, 2019
Priority search results
Search/Exam
Feb 20, 2019
Request for entry into the European phase
Search/Exam
Feb 15, 2019
Information on entry into European phase
Search/Exam
Apr 30, 2018
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Copy of the international search report
Search/Exam
Apr 12, 2018
Copy of the international search report
Search/Exam
Apr 12, 2018
Published international application - A1
Search/Exam
Dec 1, 2017
ISR: cited documents
PCTISA
Dec 1, 2017
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Sep 22, 2017
(Electronic) Receipt
PCTRO
Sep 22, 2017
Abstract
PCTRO
Sep 22, 2017
Claims
PCTRO
Sep 22, 2017
Description
PCTRO
Sep 22, 2017
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Drawings
PCTRO
Sep 22, 2017