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The patent EP4158160 was granted to Yara ASA on Aug 14, 2024. The application was filed on May 26, 2021 under application number EP21726028A. 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 |
|---|---|---|---|
| STAMICARBON | May 14, 2025 | VO | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2014364647 |
| INTERNATIONAL-SEARCH-REPORT | US2017283371 |
| INTERNATIONAL-SEARCH-REPORT | US2018222752 |
| OPPOSITION | US2018222752 |
| OPPOSITION | WO2015193108 |
| OPPOSITION | WO2018052304 |
| OPPOSITION | WO2020104197 |
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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Decision to grant a European patent
Search/Exam
Jul 5, 2024
(Electronic) Receipt
Search/Exam
Jul 5, 2024
Filing of the translations of the claims
Search/Exam
Jul 5, 2024
French translation of claims
Search/Exam
Jul 5, 2024
German translation of the claims
Search/Exam
Jul 5, 2024
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Mar 27, 2024
Text intended for grant (clean copy)
Search/Exam
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(Electronic) Receipt
Search/Exam
Feb 16, 2024
Amended claims with annotations
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Feb 16, 2024
Amended description with annotations
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Claims
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Feb 16, 2024
Description
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Feb 16, 2024
Letter accompanying subsequently filed items
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Intention to grant (signatures)
Search/Exam
Oct 24, 2023
Text intended for grant (clean copy)
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Oct 24, 2023
Sep 14, 2023
Examination started
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Jun 13, 2023
(Electronic) Receipt
Search/Exam
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Amended claims with annotations
Search/Exam
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Amended description with annotations
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Amendments received before examination
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Jun 13, 2023
Letter accompanying subsequently filed items
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Priority search results copy provided by EPO
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Dec 21, 2022
(Electronic) Receipt
Search/Exam
Dec 21, 2022
Request for entry into the European phase
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Information on entry into European phase
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Notification of election of EPO
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Written opinion
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PCT demand form
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Copy of the international search report
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Dec 2, 2021
Published international application - A1
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Jul 1, 2021
(Electronic) Receipt
PCTRO
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RO101 Declaration
PCTRO
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(Electronic) Receipt
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(Electronic) Receipt
PCTRO
May 26, 2021
Abstract
PCTRO
May 26, 2021
Claims
PCTRO
May 26, 2021
Description
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Drawings
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