The patent EP3294683 was granted to STO on Jul 1, 2020. The application was originally filed on May 8, 2015 under application number EP15723004A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text | Link |
|---|---|---|
| OPPOSITION | - Anonymous, "Infinitesimal", Wikipedia, (20190911), page 1, XP055797314 | - |
| OPPOSITION | - Anonymous, "Kieselsol", Wikipedia, (20190420), pages 1 - 2, XP055797284 | - |
| OPPOSITION | - Anonymous, "Mastersizer 3000", Malvern Instruments Ltd., (20210000), pages 1 - 11, XP055797310 | - |
| OPPOSITION | - Anonymous, "Mineralfarbe ", (20141229), pages 1 - 4, Wikipedia , URL: https://de.wikipedia.org/w/index.php?title=Mineralfarbe&oldid=137197693, (20231030), XP093096056 | - |
| OPPOSITION | - Anonymous, "Pigment-Volumen-Konzentration", Wikipedia, (20200811), pages 1 - 4, XP055797316 | - |
| OPPOSITION | - Anonymous, "Siloxane", Wikipedia, (20210226), pages 1 - 4, XP055797320 | - |
| OPPOSITION | - HERRN DR. MICHAEL MEDER, "Biologische Besiedlung von Fassadenbeschich- tungen in Abhängigkeit von Dispersion und Pigment-Volumen-Konzentration", Dissertation, (20080000), pages 1 - 9, XP055797321 | - |
| OPPOSITION | - "Mineralfarbe", Wikipedia, (20210208), pages 1 - 4, XP055797268 | - |
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Date
Description
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Aug 8, 2025
Refund of fees
Appeal
Aug 6, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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Jul 8, 2024
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(Electronic) Receipt
Appeal
Jul 2, 2024
Jul 2, 2024
Reply to appeal
Appeal
Mar 26, 2024
Mar 20, 2024
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Jan 19, 2024
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Notice of appeal
Appeal
Nov 20, 2023
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Means of redress
OPPO
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Jul 13, 2020
Jun 5, 2020
Decision to grant a European patent
Search/Exam
May 25, 2020
(Electronic) Receipt
Search/Exam
May 25, 2020
(Electronic) Receipt
Search/Exam
May 25, 2020
English translation of the claims
Search/Exam
May 25, 2020
Filing of the translations of the claims
Search/Exam
May 25, 2020
French translation of claims
Search/Exam
May 25, 2020
Letter accompanying subsequently filed items
Search/Exam
May 25, 2020
Letter accompanying subsequently filed items
Search/Exam
May 25, 2020
Translation of the claims
Search/Exam
Apr 17, 2020
Apr 17, 2020
Apr 17, 2020
Intention to grant (signatures)
Search/Exam
Apr 17, 2020
Text intended for grant (clean copy)
Search/Exam
Apr 17, 2020
Mar 3, 2020
(Electronic) Receipt
Search/Exam
Mar 3, 2020
Amended claims with annotations
Search/Exam
Mar 3, 2020
Amended description with annotations
Search/Exam
Mar 3, 2020
Claims
Search/Exam
Mar 3, 2020
Description
Search/Exam
Mar 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 3, 2020
Feb 25, 2020
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Feb 25, 2020
Intention to grant (signatures)
Search/Exam
Feb 25, 2020
Text intended for grant (clean copy)
Search/Exam
Feb 25, 2020
Nov 19, 2019
(Electronic) Receipt
Search/Exam
Nov 19, 2019
Amended description with annotations
Search/Exam
Nov 19, 2019
Description
Search/Exam
Nov 19, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 19, 2019
Nov 4, 2019
Annex to the communication
Search/Exam
Nov 4, 2019
Communication from the Examining Division
Search/Exam
Aug 13, 2019
(Electronic) Receipt
Search/Exam
Aug 13, 2019
Amended claims with annotations
Search/Exam
Aug 13, 2019
Claims
Search/Exam
Aug 13, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Apr 30, 2019
Annex to the communication
Search/Exam
Apr 30, 2019
Communication from the Examining Division
Search/Exam
Feb 19, 2019
(Electronic) Receipt
Search/Exam
Feb 19, 2019
Amended claims with annotations
Search/Exam
Feb 19, 2019
Claims
Search/Exam
Feb 19, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 19, 2019
Oct 26, 2018
Annex to the communication
Search/Exam
Oct 26, 2018
Communication from the Examining Division
Search/Exam
Oct 22, 2018
Examination started
Search/Exam
Jun 5, 2018
(Electronic) Receipt
Search/Exam
Jun 5, 2018
Jun 5, 2018
Amended claims with annotations
Search/Exam
Jun 5, 2018
Amendments received before examination
Search/Exam
Jun 5, 2018
Letter accompanying subsequently filed items
Search/Exam
Feb 21, 2018
Dec 15, 2017
Dec 13, 2017
Communication to designated inventor
Search/Exam
Dec 13, 2017
Communication to designated inventor
Search/Exam
Dec 13, 2017
Communication to designated inventor
Search/Exam
Dec 13, 2017
Communication to designated inventor
Search/Exam
Dec 13, 2017
Communication to designated inventor
Search/Exam
Nov 27, 2017
Oct 26, 2017
(Electronic) Receipt
Search/Exam
Oct 26, 2017
Request for entry into the European phase
Search/Exam
Sep 22, 2017
Information on entry into European phase
Search/Exam
Nov 17, 2016
Copy of the international search report
Search/Exam
Nov 17, 2016
Copy of the international search report
Search/Exam
Nov 17, 2016
Published international application - A1
Search/Exam
Jan 20, 2016
ISR: cited documents
PCTISA
Jan 20, 2016
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May 8, 2015
(Electronic) Receipt
PCTRO
May 8, 2015
Abstract
PCTRO
May 8, 2015
Claims
PCTRO
May 8, 2015
Description
PCTRO
May 8, 2015
Drawings
PCTRO