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The patent EP3209295 was granted to Oyster Point Pharma on Dec 6, 2023. The application was filed on Oct 19, 2015 under application number EP15852340A. 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 |
|---|---|---|---|
| BECK GREENER | Sep 9, 2021 | ELKINGTON AND FIFE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1214062 |
| DESCRIPTION | WO2008057938 |
| DESCRIPTION | WO2009111550 |
| DESCRIPTION | WO2010028011 |
| DESCRIPTION | WO2010028033 |
| INTERNATIONAL-SEARCH-REPORT | EP1214062 |
| INTERNATIONAL-SEARCH-REPORT | US2011263629 |
| INTERNATIONAL-SEARCH-REPORT | US2012095062 |
| INTERNATIONAL-SEARCH-REPORT | US2012289572 |
| INTERNATIONAL-SEARCH-REPORT | WO2004039366 |
| INTERNATIONAL-SEARCH-REPORT | WO2013057687 |
| OPPOSITION | EP1214062 |
| OPPOSITION | WO2009069126 |
| SEARCH | EP1214062 |
| SEARCH | WO2009069126 |
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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Nov 9, 2023
Nov 9, 2023
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Means of redress
OPPO
Feb 23, 2023
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Authorisation
OPPO
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Authorisation
OPPO
Dec 9, 2022
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May 17, 2021
Document concerning representation
Search/Exam
May 17, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 21, 2020
Nov 12, 2020
Decision to grant a European patent
Search/Exam
Oct 27, 2020
(Electronic) Receipt
Search/Exam
Oct 27, 2020
Filing of the translations of the claims
Search/Exam
Oct 27, 2020
French translation of claims
Search/Exam
Oct 27, 2020
German translation of the claims
Search/Exam
Oct 27, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 14, 2020
Oct 14, 2020
Oct 14, 2020
Intention to grant (signatures)
Search/Exam
Oct 14, 2020
Text intended for grant (clean copy)
Search/Exam
Oct 14, 2020
Jul 22, 2020
(Electronic) Receipt
Search/Exam
Jul 22, 2020
Amended claims with annotations
Search/Exam
Jul 22, 2020
Amended description with annotations
Search/Exam
Jul 22, 2020
Claims
Search/Exam
Jul 22, 2020
Description
Search/Exam
Jul 22, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 22, 2020
Jun 24, 2020
Annex to the communication
Search/Exam
Jun 24, 2020
Communication from the Examining Division
Search/Exam
Jun 19, 2020
Examination started
Search/Exam
May 14, 2020
(Electronic) Receipt
Search/Exam
May 14, 2020
Amended claims with annotations
Search/Exam
May 14, 2020
Claims
Search/Exam
May 14, 2020
Letter accompanying subsequently filed items
Search/Exam
May 14, 2020
Apr 16, 2020
Apr 1, 2020
(Electronic) Receipt
Search/Exam
Apr 1, 2020
Enquiry as to the processing of the file
Search/Exam
Apr 1, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 18, 2019
Oct 30, 2019
(Electronic) Receipt
Search/Exam
Oct 30, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 30, 2019
Nov 16, 2018
(Electronic) Receipt
Search/Exam
Nov 16, 2018
Nov 16, 2018
Amended claims with annotations
Search/Exam
Nov 16, 2018
Amendments received before examination
Search/Exam
Nov 16, 2018
Letter accompanying subsequently filed items
Search/Exam
May 14, 2018
Apr 24, 2018
Apr 24, 2018
European search opinion
Search/Exam
Apr 24, 2018
Information on Search Strategy
Search/Exam
Apr 24, 2018
Supplementary European search report
Search/Exam
Apr 16, 2018
Search started
Search/Exam
Dec 14, 2017
(Electronic) Receipt
Search/Exam
Dec 14, 2017
Dec 14, 2017
Amended claims with annotations
Search/Exam
Dec 14, 2017
Amendments received before examination
Search/Exam
Dec 14, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 2, 2017
Jun 19, 2017
May 30, 2017
Communication to designated inventor
Search/Exam
May 30, 2017
Communication to designated inventor
Search/Exam
May 30, 2017
Communication to designated inventor
Search/Exam
May 19, 2017
(Electronic) Receipt
Search/Exam
May 19, 2017
May 19, 2017
Request for entry into the European phase
Search/Exam
May 10, 2017
Apr 19, 2017
Notification of the recording of a change
Search/Exam
Apr 19, 2017
Notification of the recording of a change
Search/Exam
Mar 3, 2017
Information on entry into European phase
Search/Exam
May 17, 2016
May 17, 2016
Apr 28, 2016
Copy of the international search report
Search/Exam
Apr 28, 2016
Published international application - A1
Search/Exam