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The patent EP3241811 was granted to STO on Mar 25, 2020. The application was originally filed on Apr 3, 2012 under application number EP17172441A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | DE2410605 |
| EXAMINATION | US4313997 |
| OPPOSITION | DE102005000684 |
| OPPOSITION | DE102005029844 |
| OPPOSITION | DE102006048897 |
| OPPOSITION | DE102008027986 |
| OPPOSITION | DE19708991 |
| OPPOSITION | DE3715487 |
| OPPOSITION | EP2395164 |
| OPPOSITION | US2002193493 |
| OPPOSITION | US5830548 |
| OPPOSITION | USH2063H |
| OPPOSITION | WO2011108856 |
| SEARCH | DE20013200U |
| SEARCH | EP0353860 |
| SEARCH | US4031684 |
| SEARCH | US5787667 |
| SEARCH | WO2007090445 |
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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Apr 6, 2020
Feb 27, 2020
Decision to grant a European patent
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Feb 11, 2020
(Electronic) Receipt
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Feb 11, 2020
English translation of the claims
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Feb 11, 2020
Filing of the translations of the claims
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Feb 11, 2020
French translation of claims
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Feb 11, 2020
Letter accompanying subsequently filed items
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Oct 18, 2019
Oct 18, 2019
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Oct 18, 2019
Intention to grant (signatures)
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Oct 18, 2019
Text intended for grant (clean copy)
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Oct 18, 2019
Oct 15, 2019
Oct 8, 2019
Advice of delivery
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Sep 17, 2019
(Electronic) Receipt
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Sep 17, 2019
Amended claims with annotations
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Sep 17, 2019
Amended description with annotations
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Sep 17, 2019
Claims
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Sep 17, 2019
Description
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Sep 17, 2019
Letter accompanying subsequently filed items
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Sep 17, 2019
Letter dealing with oral proceedings
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Aug 19, 2019
(Electronic) Receipt
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Aug 19, 2019
Amended claims with annotations
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Aug 19, 2019
Amended claims with annotations
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Aug 19, 2019
Amended claims with annotations
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Aug 19, 2019
Claims
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Aug 19, 2019
Claims
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Aug 19, 2019
Claims
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Aug 19, 2019
Letter accompanying subsequently filed items
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Aug 19, 2019
Jun 5, 2019
May 14, 2019
(Electronic) Receipt
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May 14, 2019
Amended claims with annotations
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May 14, 2019
Claims
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May 14, 2019
Letter accompanying subsequently filed items
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May 14, 2019
May 9, 2019
Advice of delivery
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Apr 30, 2019
Acknowledgement of a document
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Apr 30, 2019
Acknowledgement of a document
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Apr 30, 2019
Acknowledgement of a document
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Apr 30, 2019
Acknowledgement of a document
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Apr 30, 2019
Acknowledgement of a document
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Apr 23, 2019
Acknowledgement of a document
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Apr 23, 2019
Annex to the communication
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Apr 23, 2019
Summons to attend oral proceedings
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Jan 29, 2019
(Electronic) Receipt
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Jan 29, 2019
Amended claims with annotations
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Jan 29, 2019
Claims
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Jan 29, 2019
Letter accompanying subsequently filed items
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Jan 29, 2019
Oct 1, 2018
Annex to the communication
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Oct 1, 2018
Communication from the Examining Division
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Sep 25, 2018
Examination started
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Jun 11, 2018
(Electronic) Receipt
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Jun 11, 2018
Letter accompanying subsequently filed items
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Jun 5, 2018
Mar 27, 2018
(Electronic) Receipt
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Mar 27, 2018
Mar 27, 2018
Amended claims with annotations
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Mar 27, 2018
Amendments received before examination
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Mar 27, 2018
Annex
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Mar 27, 2018
Letter accompanying subsequently filed items
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Mar 27, 2018
Written request for examination
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Nov 13, 2017
Oct 11, 2017
Notification of forthcoming publication
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Oct 11, 2017
Refund of fees
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Oct 9, 2017
Oct 9, 2017
European search opinion
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Oct 9, 2017
European search report
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Oct 9, 2017
Information on Search Strategy
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Sep 28, 2017
Search started
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Jul 17, 2017
Communication to designated inventor
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Jul 4, 2017
(Electronic) Receipt
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Jul 4, 2017
Authorisation
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Jul 4, 2017
Letter accompanying subsequently filed items
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May 23, 2017
Abstract
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May 23, 2017
May 23, 2017
Claims
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May 23, 2017
Description
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May 23, 2017
Designation of inventor
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May 23, 2017