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The patent EP3501489 was granted to LIW Patent BY Guarantee on Nov 1, 2023. The application was filed on Feb 13, 2017 under application number EP17842531A. 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 |
|---|---|---|---|
| HOGAN LOVELLS | Jul 25, 2024 | KLICZNIK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP20080151246 |
| DESCRIPTION | EP0234261 |
| DESCRIPTION | US2015034119 |
| DESCRIPTION | US2015037270 |
| DESCRIPTION | US2015037271 |
| DESCRIPTION | US4201235 |
| DESCRIPTION | US9095518 |
| DESCRIPTION | WO2015017768 |
| INTERNATIONAL-SEARCH-REPORT | CN105267066 |
| INTERNATIONAL-SEARCH-REPORT | CN105496804 |
| INTERNATIONAL-SEARCH-REPORT | CN106265109 |
| SEARCH | CN105267066 |
| SEARCH | CN105496804 |
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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Nov 14, 2023
Oct 6, 2023
Decision to grant a European patent
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Sep 21, 2023
(Electronic) Receipt
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Sep 21, 2023
Filing of the translations of the claims
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Sep 21, 2023
French translation of claims
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Sep 21, 2023
German translation of the claims
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Sep 21, 2023
Letter accompanying subsequently filed items
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Sep 21, 2023
Letter concerning fees and payments
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Intention to grant (signatures)
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May 26, 2023
Text intended for grant (clean copy)
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Mar 13, 2023
(Electronic) Receipt
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Mar 13, 2023
Enquiry as to the processing of the file
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Mar 13, 2023
Enquiry as to the processing of the file
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Letter accompanying subsequently filed items
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Mar 9, 2023
Document concerning representation
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Letter accompanying subsequently filed items
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Mar 3, 2023
Document concerning representation
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Annex
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Annex to the communication
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Annex to the communication
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(Electronic) Receipt
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Abstract
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Abstract
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Sep 16, 2021
Amended claims with annotations
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Amended description with annotations
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Claims
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Sep 16, 2021
Description
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Sep 16, 2021
Letter accompanying subsequently filed items
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Aug 27, 2021
Annex to the communication
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Aug 27, 2021
Communication from the Examining Division
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Jul 14, 2021
(Electronic) Receipt
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Jul 14, 2021
Abstract
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Abstract
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Abstract
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Abstract
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Amended claims with annotations
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Amended claims with annotations
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Amended description with annotations
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Amended description with annotations
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Claims
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Claims
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Description
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Description
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Letter accompanying subsequently filed items
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Annex to the communication
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Apr 14, 2021
Communication from the Examining Division
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Examination started
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Mar 23, 2021
Priority search results
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Priority search results
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Priority search results
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Reply to Written Opinion prepared by the EPO
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Feb 8, 2021
Reply to Written Opinion prepared by the EPO
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Feb 5, 2021
Extension of time limit refused
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Feb 1, 2021
Request for extension of time limit
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Jan 29, 2021
Annex
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Jan 26, 2021
Request for extension of time limit
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Jul 28, 2020
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European search opinion
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Information on Search Strategy
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Supplementary European search report
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Jun 26, 2020
Search started
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Mar 5, 2020
Document concerning representation
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Mar 4, 2020
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Request for further processing allowed
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Feb 26, 2020
Note on telephone consultation
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Feb 5, 2020
Letter concerning fees and payments
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Feb 5, 2020
Matter concerning the application
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Feb 4, 2020
Letter concerning fees and payments
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Feb 4, 2020
Request for further processing
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Jan 14, 2020
Letter concerning the inventor
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Jan 9, 2020
Letter concerning the inventor
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Dec 5, 2019
Claim deemed abandoned
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Annex
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Annex
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Annex
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Annex
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Oct 24, 2019
Matter concerning the application
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Annex
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Annex
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Oct 22, 2019
Matter concerning the application
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Letter which had not been notified
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Sep 13, 2019
Refund of fees
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May 29, 2019
Notification of forthcoming publication
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Communication to designated inventor
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Mar 26, 2019
Annexes in respect of a client data request
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(Electronic) Receipt
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Feb 19, 2019
Abstract
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Claims
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Feb 19, 2019
Description
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Feb 19, 2019
Request for entry into the European phase
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Information on entry into European phase
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Mar 21, 2018
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Copy of the international search report
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Mar 1, 2018
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International publication pamphlet
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