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The patent EP3460008 was granted to STO on Sep 4, 2019. The application was filed on Sep 19, 2018 under application number EP18195342A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| DAW KARL BACHI | Jun 4, 2020 | METTEN | ADMISSIBLE |
| OMYA | Jun 4, 2020 | HELD | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CN104610791 |
| OPPOSITION | EP1083207 |
| OPPOSITION | EP2374353 |
| OPPOSITION | EP2982247 |
| OPPOSITION | US2014086794 |
| OPPOSITION | US6231650 |
| OPPOSITION | WO02090428 |
| OPPOSITION | WO9742269 |
| SEARCH | EP1978063 |
| SEARCH | US2010279078 |
| SEARCH | US6084008 |
| SEARCH | WO2014164632 |
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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Document concerning representation
Search/Exam
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Sep 16, 2019
Aug 8, 2019
Decision to grant a European patent
Search/Exam
Jul 19, 2019
(Electronic) Receipt
Search/Exam
Jul 19, 2019
English translation of the claims
Search/Exam
Jul 19, 2019
Filing of the translations of the claims
Search/Exam
Jul 19, 2019
French translation of claims
Search/Exam
Jul 19, 2019
Letter accompanying subsequently filed items
Search/Exam
May 22, 2019
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Intention to grant (signatures)
Search/Exam
May 22, 2019
Text intended for grant (clean copy)
Search/Exam
May 22, 2019
Apr 8, 2019
(Electronic) Receipt
Search/Exam
Apr 8, 2019
Amended description with annotations
Search/Exam
Apr 8, 2019
Description
Search/Exam
Apr 8, 2019
Letter accompanying subsequently filed items
Search/Exam
Apr 8, 2019
Apr 1, 2019
Mar 18, 2019
Annex to the communication
Search/Exam
Mar 18, 2019
Communication from the Examining Division
Search/Exam
Mar 12, 2019
Examination started
Search/Exam
Feb 27, 2019
Notification of forthcoming publication
Search/Exam
Feb 19, 2019
(Electronic) Receipt
Search/Exam
Feb 19, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 19, 2019
Letter concerning fees and payments
Search/Exam
Feb 19, 2019
Reply to Written Opinion prepared by the EPO
Search/Exam
Feb 4, 2019
Feb 4, 2019
European search opinion
Search/Exam
Feb 4, 2019
European search report
Search/Exam
Feb 4, 2019
Information on Search Strategy
Search/Exam
Nov 14, 2018
Communication to designated inventor
Search/Exam
Nov 14, 2018
Communication to designated inventor
Search/Exam
Nov 14, 2018
Communication to designated inventor
Search/Exam
Nov 14, 2018
Communication to designated inventor
Search/Exam
Oct 22, 2018
Letter concerning the priority
Search/Exam
Oct 22, 2018
Priority document
Search/Exam
Sep 19, 2018
Abstract
Search/Exam
Sep 19, 2018
Sep 19, 2018
Claims
Search/Exam
Sep 19, 2018
Description
Search/Exam
Sep 19, 2018
Designation of inventor
Search/Exam
Sep 19, 2018
Priority search results
Search/Exam
Sep 19, 2018
Request for grant of a European patent
Search/Exam