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The patent EP3848028 was granted to Oyster Point Pharma on Oct 16, 2024. The application was filed on Oct 19, 2015 under application number EP20212556A. 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 |
|---|---|---|---|
| HOFFMANN EITLE | Feb 6, 2025 | HOFFMANN EITLE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2008057938 |
| DESCRIPTION | WO2009111550 |
| DESCRIPTION | WO2010028011 |
| DESCRIPTION | WO2010028033 |
| OPPOSITION | EP1214062 |
| OPPOSITION | US2006084656 |
| OPPOSITION | US2011274628 |
| OPPOSITION | WO2009069126 |
| OPPOSITION | WO2016064759 |
| 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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Sep 11, 2024
Sep 5, 2024
(Electronic) Receipt
Search/Exam
Sep 5, 2024
Letter accompanying subsequently filed items
Search/Exam
Sep 5, 2024
Request for correction of the publication
Search/Exam
Jun 11, 2024
May 3, 2024
Decision to grant a European patent
Search/Exam
Apr 18, 2024
(Electronic) Receipt
Search/Exam
Apr 18, 2024
Filing of the translations of the claims
Search/Exam
Apr 18, 2024
French translation of claims
Search/Exam
Apr 18, 2024
German translation of the claims
Search/Exam
Dec 21, 2023
Dec 21, 2023
Dec 21, 2023
Dec 21, 2023
Intention to grant (signatures)
Search/Exam
Dec 21, 2023
Text intended for grant (clean copy)
Search/Exam
Dec 21, 2023
Nov 16, 2023
(Electronic) Receipt
Search/Exam
Nov 16, 2023
Amended description with annotations
Search/Exam
Nov 16, 2023
Description
Search/Exam
Nov 16, 2023
Letter accompanying subsequently filed items
Search/Exam
Nov 16, 2023
Sep 22, 2023
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Sep 22, 2023
Intention to grant (signatures)
Search/Exam
Sep 22, 2023
Text intended for grant (clean copy)
Search/Exam
Sep 22, 2023
Aug 9, 2023
(Electronic) Receipt
Search/Exam
Aug 9, 2023
Amended claims with annotations
Search/Exam
Aug 9, 2023
Amended description with annotations
Search/Exam
Aug 9, 2023
Claims
Search/Exam
Aug 9, 2023
Description
Search/Exam
Aug 9, 2023
Letter accompanying subsequently filed items
Search/Exam
Aug 9, 2023
Aug 4, 2023
Jul 31, 2023
(Electronic) Receipt
Search/Exam
Jul 31, 2023
Letter accompanying subsequently filed items
Search/Exam
Jul 31, 2023
Jun 9, 2023
May 31, 2023
Document concerning representation
Search/Exam
May 31, 2023
May 24, 2023
(Electronic) Receipt
Search/Exam
May 24, 2023
Letter accompanying subsequently filed items
Search/Exam
May 24, 2023
Apr 5, 2023
Annex to the communication
Search/Exam
Apr 5, 2023
Communication from the Examining Division
Search/Exam
Mar 31, 2023
Examination started
Search/Exam
Apr 26, 2022
Decision to allow further processing
Search/Exam
Apr 26, 2022
Refund of fees
Search/Exam
Apr 12, 2022
(Electronic) Receipt
Search/Exam
Apr 12, 2022
Apr 12, 2022
Amended claims with annotations
Search/Exam
Apr 12, 2022
Letter accompanying subsequently filed items
Search/Exam
Apr 12, 2022
Request for further processing
Search/Exam
Feb 4, 2022
Jul 19, 2021
Jun 16, 2021
Notification of forthcoming publication
Search/Exam
Jun 2, 2021
Refund of fees
Search/Exam
May 28, 2021
May 28, 2021
European search opinion
Search/Exam
May 28, 2021
European search report
Search/Exam
May 28, 2021
Information on Search Strategy
Search/Exam
May 17, 2021
Document concerning representation
Search/Exam
May 17, 2021
Letter accompanying subsequently filed items
Search/Exam
May 15, 2021
Search started
Search/Exam
Mar 2, 2021
(Electronic) Receipt
Search/Exam
Mar 2, 2021
Claims
Search/Exam
Mar 2, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 2, 2021
Matter concerning the application
Search/Exam
Jan 29, 2021
Communication to designated inventor
Search/Exam
Jan 29, 2021
Communication to designated inventor
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Jan 29, 2021
Communication to designated inventor
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Dec 23, 2020
Invitation to file claims
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Dec 8, 2020
Abstract
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Dec 8, 2020
Dec 8, 2020
Description
Search/Exam
Dec 8, 2020
Designation of inventor
Search/Exam
Dec 8, 2020
Drawings
Search/Exam
Dec 8, 2020
Request for grant of a European patent
Search/Exam
May 17, 2016
May 17, 2016