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The patent EP3606522 was granted to Khondrion on Jul 12, 2023. The application was filed on Sep 5, 2017 under application number EP17758900A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| SULFATEQ | Apr 10, 2024 | HOYNG ROKH MONEGIER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2005067303 |
| DESCRIPTION | WO2012019029 |
| DESCRIPTION | WO2012019032 |
| DESCRIPTION | WO2014011047 |
| INTERNATIONAL-SEARCH-REPORT | US2009118257 |
| INTERNATIONAL-SEARCH-REPORT | WO2014011047 |
| INTERNATIONAL-SEARCH-REPORT | WO2017060432 |
| OPPOSITION | WO2014011047 |
| OPPOSITION | WO2014098586 |
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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Description
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Decision to grant a European patent
Search/Exam
Jun 1, 2023
(Electronic) Receipt
Search/Exam
Jun 1, 2023
Filing of the translations of the claims
Search/Exam
Jun 1, 2023
French translation of claims
Search/Exam
Jun 1, 2023
German translation of the claims
Search/Exam
Jun 1, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 6, 2023
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Intention to grant (signatures)
Search/Exam
Mar 6, 2023
Text intended for grant (clean copy)
Search/Exam
Mar 6, 2023
Dec 5, 2022
(Electronic) Receipt
Search/Exam
Dec 5, 2022
Amended description with annotations
Search/Exam
Dec 5, 2022
Description
Search/Exam
Dec 5, 2022
Letter accompanying subsequently filed items
Search/Exam
Dec 5, 2022
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Annex to the communication
Search/Exam
Nov 29, 2022
Communication from the Examining Division
Search/Exam
Nov 22, 2022
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(Electronic) Receipt
Search/Exam
Nov 11, 2022
Amended claims with annotations
Search/Exam
Nov 11, 2022
Claims
Search/Exam
Nov 11, 2022
Letter accompanying subsequently filed items
Search/Exam
Nov 11, 2022
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Non-patent literature filed by a third party
Search/Exam
Jun 23, 2022
Non-patent literature filed by a third party
Search/Exam
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Non-patent literature filed by a third party
Search/Exam
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
Search/Exam
Jun 23, 2022
Observations by third parties
Search/Exam
Jun 23, 2022
Observations by third parties
Search/Exam
May 2, 2022
Annex to the communication
Search/Exam
May 2, 2022
Summons to attend oral proceedings
Search/Exam
Mar 29, 2021
(Electronic) Receipt
Search/Exam
Mar 29, 2021
Amended claims with annotations
Search/Exam
Mar 29, 2021
Claims
Search/Exam
Mar 29, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 29, 2021
Nov 30, 2020
Annex to the communication
Search/Exam
Nov 30, 2020
Communication from the Examining Division
Search/Exam
Nov 24, 2020
Examination started
Search/Exam
May 12, 2020
(Electronic) Receipt
Search/Exam
May 12, 2020
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Amended claims with annotations
Search/Exam
May 12, 2020
Amendments received before examination
Search/Exam
May 12, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 15, 2020
Nov 12, 2019
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Communication to designated inventor
Search/Exam
Nov 8, 2019
Communication to designated inventor
Search/Exam
Oct 22, 2019
Sep 23, 2019
(Electronic) Receipt
Search/Exam
Sep 23, 2019
Request for entry into the European phase
Search/Exam
Aug 19, 2019
Information on entry into European phase
Search/Exam
Aug 15, 2019
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Notification of the recording of a change
Search/Exam
Oct 30, 2018
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Copy of the international search report
Search/Exam
Oct 11, 2018
Published international application - A1
Search/Exam
Nov 10, 2017
ISR: cited documents
PCTISA
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(Electronic) Receipt
PCTRO
Sep 5, 2017
Abstract
PCTRO
Sep 5, 2017
Claims
PCTRO
Sep 5, 2017
Description
PCTRO
Sep 5, 2017
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Drawings
PCTRO
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