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The patent EP3158111 was granted to Sunfire on Jul 29, 2020. The application was filed on Jun 4, 2015 under application number EP15744473A. 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 |
|---|---|---|---|
| HALDOR TOPSOE | Apr 27, 2021 | D YOUNG | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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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Annexes in respect of a client data request
Search/Exam
Sep 1, 2025
Annexes in respect of a client data request
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Annexes in respect of a client data request
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Sep 1, 2025
Letter accompanying subsequently filed items
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(Electronic) Receipt
Search/Exam
Apr 15, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 15, 2021
Mar 23, 2021
Document concerning representation
Search/Exam
Aug 10, 2020
Jul 2, 2020
Decision to grant a European patent
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Jun 18, 2020
(Electronic) Receipt
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Jun 18, 2020
English translation of the claims
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Jun 18, 2020
Filing of the translations of the claims
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Jun 18, 2020
French translation of claims
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Jun 18, 2020
Letter accompanying subsequently filed items
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Jun 9, 2020
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Intention to grant (signatures)
Search/Exam
Jun 9, 2020
Text intended for grant (clean copy)
Search/Exam
Jun 9, 2020
May 6, 2020
(Electronic) Receipt
Search/Exam
May 6, 2020
Amended claims with annotations
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May 6, 2020
Claims
Search/Exam
May 6, 2020
Letter accompanying subsequently filed items
Search/Exam
May 6, 2020
Jan 9, 2020
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Intention to grant (signatures)
Search/Exam
Jan 9, 2020
Text intended for grant (clean copy)
Search/Exam
Jan 9, 2020
Aug 5, 2019
(Electronic) Receipt
Search/Exam
Aug 5, 2019
Amended claims with annotations
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Aug 5, 2019
Amended description with annotations
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Aug 5, 2019
Claims
Search/Exam
Aug 5, 2019
Description
Search/Exam
Aug 5, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 5, 2019
May 28, 2019
Annex to the communication
Search/Exam
May 28, 2019
Communication from the Examining Division
Search/Exam
Feb 20, 2019
(Electronic) Receipt
Search/Exam
Feb 20, 2019
Amended claims with annotations
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Feb 20, 2019
Claims
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Feb 20, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 20, 2019
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Annex to the communication
Search/Exam
Oct 11, 2018
Communication from the Examining Division
Search/Exam
Jun 15, 2018
(Electronic) Receipt
Search/Exam
Jun 15, 2018
Amended claims with annotations
Search/Exam
Jun 15, 2018
Amended description with annotations
Search/Exam
Jun 15, 2018
Claims
Search/Exam
Jun 15, 2018
Description
Search/Exam
Jun 15, 2018
Letter accompanying subsequently filed items
Search/Exam
Jun 15, 2018
Feb 7, 2018
Annex to the communication
Search/Exam
Feb 7, 2018
Communication from the Examining Division
Search/Exam
Jan 30, 2018
Examination started
Search/Exam
Nov 13, 2017
(Electronic) Receipt
Search/Exam
Nov 13, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 13, 2017
Priority search results
Search/Exam
Nov 13, 2017
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Communication to designated inventor
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(Electronic) Receipt
Search/Exam
Mar 23, 2017
Letter accompanying subsequently filed items
Search/Exam
Mar 23, 2017
Letter concerning the inventor
Search/Exam
Mar 21, 2017
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Letter which had not been notified
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Feb 13, 2017
Communication to designated inventor
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Communication to designated inventor
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Feb 13, 2017
Communication to designated inventor
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Jan 6, 2017
(Electronic) Receipt
Search/Exam
Jan 6, 2017
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Amended claims with annotations
Search/Exam
Jan 6, 2017
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Amended description with annotations
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Jan 6, 2017
Amendments received before examination
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Jan 6, 2017
Request for entry into the European phase
Search/Exam
Dec 19, 2016
Oct 14, 2016
Information on entry into European phase
Search/Exam
Jan 4, 2016
Dec 10, 2015
Copy of the international search report
Search/Exam
Dec 10, 2015
Copy of the international search report
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Dec 10, 2015
Published international application - A1
Search/Exam
Oct 9, 2015
ISR: cited documents
PCTISA
Oct 9, 2015
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Abstract
PCTISA
Jul 20, 2015
Claims
PCTISA
Jul 20, 2015
Description
PCTISA
Jul 20, 2015
Drawings
PCTISA