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The patent EP3354555 was granted to Cayago on May 22, 2024. The application was filed on Dec 23, 2013 under application number EP18157394A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| IAQUA HONG KONG | Jun 23, 2021 | KAU | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102004049615 |
| EXAMINATION | US3412705 |
| EXAMINATION | US3841258 |
| EXAMINATION | US4718870 |
| OPPOSITION | DE3523758 |
| OPPOSITION | JPH0585471 |
| OPPOSITION | US4341177 |
| SEARCH | DE3523758 |
| SEARCH | FR2915172 |
| SEARCH | US2001025594 |
| SEARCH | US4341177 |
| SEARCH | US5158034 |
| SEARCH | US6461204 |
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
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May 17, 2021
(Electronic) Receipt
Search/Exam
May 17, 2021
English translation of the claims
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May 17, 2021
French translation of claims
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May 17, 2021
Letter accompanying subsequently filed items
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Jan 15, 2021
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Intention to grant (signatures)
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Jan 15, 2021
Text intended for grant (clean copy)
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Jan 15, 2021
Jun 2, 2020
(Electronic) Receipt
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Jun 2, 2020
Amended claims with annotations
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Jun 2, 2020
Amended claims with annotations
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Jun 2, 2020
Amended claims with annotations
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Jun 2, 2020
Amended claims with annotations
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Jun 2, 2020
Claims
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Claims
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Claims
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Claims
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Jun 2, 2020
Letter accompanying subsequently filed items
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Jun 2, 2020
Jan 27, 2020
Annex to the communication
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Jan 27, 2020
Communication from the Examining Division
Search/Exam
Oct 9, 2019
(Electronic) Receipt
Search/Exam
Oct 9, 2019
Amended claims with annotations
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Oct 9, 2019
Amended claims with annotations
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Oct 9, 2019
Claims
Search/Exam
Oct 9, 2019
Claims
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Oct 9, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 9, 2019
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Apr 9, 2019
Annex to the communication
Search/Exam
Apr 9, 2019
Communication from the Examining Division
Search/Exam
Apr 9, 2019
Apr 4, 2019
Annexes in respect of a client data request
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Apr 1, 2019
Examination started
Search/Exam
Mar 27, 2019
Mar 14, 2019
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Feb 15, 2019
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(Electronic) Receipt
Search/Exam
Jan 3, 2019
Jan 3, 2019
Amended claims with annotations
Search/Exam
Jan 3, 2019
Amendments received before examination
Search/Exam
Jan 3, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 6, 2018
Jul 4, 2018
Notification of forthcoming publication
Search/Exam
Jun 20, 2018
Refund of fees
Search/Exam
Jun 13, 2018
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European search opinion
Search/Exam
Jun 13, 2018
European search report
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Jun 13, 2018
Information on Search Strategy
Search/Exam
Jun 1, 2018
Search started
Search/Exam
May 14, 2018
Communication to designated inventor
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Mar 5, 2018
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Note on telephone consultation
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Feb 19, 2018
Abstract
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Feb 19, 2018
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Claims
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Feb 19, 2018
Description
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Feb 19, 2018
Designation of inventor
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Feb 19, 2018
Drawings
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Feb 19, 2018
Request for grant of a European patent
Search/Exam
Aug 13, 2014