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The patent EP3589888 was granted to Sumitomo SHI FW Energia on Aug 7, 2024. The application was originally filed on Feb 22, 2018 under application number EP18709061A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|
| DESCRIPTION | EP1640660 |
| DESCRIPTION | KR101342266B |
| DESCRIPTION | US2012214017 |
| DESCRIPTION | US5091156 |
| DESCRIPTION | US5910920 |
| DESCRIPTION | US8518496 |
| INTERNATIONAL-SEARCH-REPORT | DE1501524 |
| INTERNATIONAL-SEARCH-REPORT | US1878242 |
| INTERNATIONAL-SEARCH-REPORT | US2005205018 |
| INTERNATIONAL-SEARCH-REPORT | US4304267 |
| INTERNATIONAL-SEARCH-REPORT | WO2010095689 |
| OPPOSITION | CN2520455 |
| OPPOSITION | CN2520455Y |
| OPPOSITION | CN2718411Y |
| OPPOSITION | CN2926820 |
| OPPOSITION | CN2926820Y |
| OPPOSITION | EP0457779 |
| OPPOSITION | EP0777758 |
| OPPOSITION | JP2012037115 |
| OPPOSITION | JPH0646102U |
| OPPOSITION | JPS60196502 |
| OPPOSITION | US5893340 |
| OPPOSITION | WO0068615 |
| OPPOSITION | WO2012114242 |
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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Jul 11, 2024
Jul 11, 2024
Jul 2, 2024
Jul 2, 2024
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Jul 2, 2024
May 7, 2024
May 7, 2024
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Apr 26, 2024
Apr 22, 2024
Refund of fees
Search/Exam
Apr 18, 2024
Apr 18, 2024
Apr 15, 2024
(Electronic) Receipt
Appeal
Apr 15, 2024
Apr 15, 2024
Withdrawal of an appeal
Appeal
Apr 11, 2024
Mar 18, 2024
Mar 18, 2024
Mar 12, 2024
(Electronic) Receipt
Appeal
Mar 12, 2024
Mar 12, 2024
Notice of appeal
Appeal
Jan 17, 2024
Jan 17, 2024
Jan 12, 2024
Jan 12, 2024
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Means of redress
OPPO
Jan 12, 2024
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General enquiry
OPPO
Jun 1, 2022
May 30, 2022
May 23, 2022
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Jan 10, 2022
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Apr 20, 2021
Mar 12, 2021
Decision to grant a European patent
Search/Exam
Feb 25, 2021
(Electronic) Receipt
Search/Exam
Feb 25, 2021
Filing of the translations of the claims
Search/Exam
Feb 25, 2021
French translation of claims
Search/Exam
Feb 25, 2021
German translation of the claims
Search/Exam
Feb 25, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 24, 2020
Nov 24, 2020
Nov 24, 2020
Intention to grant (signatures)
Search/Exam
Nov 24, 2020
Text intended for grant (clean copy)
Search/Exam
Nov 24, 2020
Oct 19, 2020
Examination started
Search/Exam
Dec 11, 2019
Oct 10, 2019
Oct 9, 2019
Communication to designated inventor
Search/Exam
Sep 16, 2019
Sep 3, 2019
(Electronic) Receipt
Search/Exam
Sep 3, 2019
Priority search results
Search/Exam
Sep 3, 2019
Request for entry into the European phase
Search/Exam
Jul 17, 2019
Jul 17, 2019
Notification of the recording of a change
Search/Exam
Jul 12, 2019
Information on entry into European phase
Search/Exam
Apr 16, 2019
Apr 16, 2019
Notification of the recording of a change
Search/Exam
Sep 26, 2018
Sep 7, 2018
Copy of the international search report
Search/Exam
Sep 7, 2018
Published international application - A1
Search/Exam
May 24, 2018
ISR: cited documents
PCTISA
May 23, 2018
May 23, 2018
May 23, 2018
Mar 20, 2018
Mar 2, 2018
Abstract
PCTISA
Mar 2, 2018
Annex
PCTISA
Mar 2, 2018
Annex
PCTISA
Mar 2, 2018
Claims
PCTISA
Mar 2, 2018
Description
PCTISA
Mar 2, 2018
Drawings
PCTISA
Mar 2, 2018