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The patent EP3253865 was granted to National University OF Singapore on Jun 22, 2022. The application was filed on Feb 5, 2016 under application number EP16746922A. 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 |
|---|---|---|---|
| PATENT BOUTIQUE | Mar 21, 2023 | PATENT BOUTIQUE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0404097 |
| DESCRIPTION | EP2247619 |
| DESCRIPTION | US4946778 |
| DESCRIPTION | US5260203 |
| DESCRIPTION | US8399645 |
| DESCRIPTION | WO2006003179 |
| DESCRIPTION | WO8801649 |
| DESCRIPTION | WO9311161 |
| INTERNATIONAL-SEARCH-REPORT | US2006034834 |
| INTERNATIONAL-SEARCH-REPORT | US2007036773 |
| SEARCH | WO2014124143 |
| SEARCH | WO2015075468 |
| SEARCH | WO2015150771 |
| SEARCH | WO2016055551 |
| SEARCH | WO2016102965 |
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 5, 2022
May 27, 2022
Decision to grant a European patent
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May 13, 2022
(Electronic) Receipt
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May 13, 2022
Filing of the translations of the claims
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May 13, 2022
French translation of claims
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May 13, 2022
German translation of the claims
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May 13, 2022
Letter accompanying subsequently filed items
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Jan 3, 2022
Jan 3, 2022
Jan 3, 2022
Intention to grant (signatures)
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Jan 3, 2022
Intention to grant (signatures)
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Jan 3, 2022
Text intended for grant (clean copy)
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Jan 3, 2022
Dec 20, 2021
Dec 20, 2021
Dec 15, 2021
(Electronic) Receipt
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Dec 15, 2021
Dec 14, 2021
(Electronic) Receipt
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Dec 14, 2021
Dec 14, 2021
Nov 5, 2021
Oct 22, 2021
(Electronic) Receipt
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Oct 22, 2021
Enquiry as to the processing of the file
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Oct 22, 2021
Letter accompanying subsequently filed items
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Aug 16, 2021
(Electronic) Receipt
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Aug 16, 2021
Amended claims with annotations
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Aug 16, 2021
Claims
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Aug 16, 2021
Letter accompanying subsequently filed items
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Aug 16, 2021
Apr 19, 2021
Annex to the communication
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Apr 19, 2021
Communication from the Examining Division
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Dec 10, 2020
(Electronic) Receipt
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Dec 10, 2020
Letter accompanying subsequently filed items
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Dec 10, 2020
Oct 9, 2020
Oct 5, 2020
(Electronic) Receipt
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Oct 5, 2020
Letter accompanying subsequently filed items
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Oct 5, 2020
Jun 10, 2020
Annex to the communication
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Jun 10, 2020
Communication from the Examining Division
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Feb 17, 2020
Feb 11, 2020
Non-patent literature filed by a third party
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Feb 11, 2020
Observations by third parties
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Feb 7, 2020
(Electronic) Receipt
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Feb 7, 2020
Abstract
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Feb 7, 2020
Amended claims with annotations
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Feb 7, 2020
Amended description with annotations
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Feb 7, 2020
Claims
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Feb 7, 2020
Description
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Feb 7, 2020
Letter accompanying subsequently filed items
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Feb 7, 2020
Oct 4, 2019
Annex to the communication
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Oct 4, 2019
Communication from the Examining Division
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Sep 19, 2019
Examination started
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Apr 16, 2019
(Electronic) Receipt
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Apr 16, 2019
Apr 16, 2019
Amended claims with annotations
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Apr 16, 2019
Amendments received before examination
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Apr 16, 2019
Letter accompanying subsequently filed items
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Feb 1, 2019
Jan 21, 2019
Non-patent literature filed by a third party
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Jan 21, 2019
Observations by third parties
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Jan 21, 2019
Patent document filed by a Third party
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Oct 10, 2018
Sep 21, 2018
Sep 21, 2018
European search opinion
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Sep 21, 2018
Information on Search Strategy
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Sep 21, 2018
Supplementary European search report
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Aug 31, 2018
Search started
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Mar 27, 2018
(Electronic) Receipt
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Mar 27, 2018
Mar 27, 2018
Amended claims with annotations
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Mar 27, 2018
Amendments received before examination
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Mar 27, 2018
Letter accompanying subsequently filed items
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Nov 15, 2017
Sep 28, 2017
Sep 26, 2017
Communication to designated inventor
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Sep 26, 2017
Communication to designated inventor
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Aug 23, 2017
(Electronic) Receipt
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Aug 23, 2017
Converted Sequence Listing
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Aug 23, 2017
Aug 23, 2017
Request for entry into the European phase
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Jun 19, 2017
Information on entry into European phase
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Aug 30, 2016
Aug 30, 2016
Aug 11, 2016
Copy of the international search report
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Aug 11, 2016
Published international application - A1
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