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The patent EP3752838 was granted to Frost Diagnostika on Aug 3, 2022. The application was filed on Feb 15, 2019 under application number EP19709626A. 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 |
|---|---|---|---|
| IMMUNDIAGNOSTIK | May 1, 2023 | BENEDUM | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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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Jan 12, 2026
(Electronic) Receipt
Appeal
Jan 12, 2026
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Nov 28, 2025
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(Electronic) Receipt
Appeal
Jun 17, 2025
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Reply to appeal
Appeal
Feb 20, 2025
Feb 12, 2025
(Electronic) Receipt
Appeal
Feb 12, 2025
Feb 12, 2025
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Dec 12, 2024
(Electronic) Receipt
Appeal
Dec 12, 2024
Dec 12, 2024
Notice of appeal
Appeal
Oct 14, 2024
Oct 14, 2024
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Means of redress
OPPO
Oct 14, 2024
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Jan 27, 2023
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Letter accompanying subsequently filed items
Search/Exam
Jan 23, 2023
Aug 17, 2022
Aug 12, 2022
Document concerning representation
Search/Exam
Jul 7, 2022
Decision to grant a European patent
Search/Exam
Jun 28, 2022
(Electronic) Receipt
Search/Exam
Jun 28, 2022
English translation of the claims
Search/Exam
Jun 28, 2022
Filing of the translations of the claims
Search/Exam
Jun 28, 2022
French translation of claims
Search/Exam
Jun 21, 2022
Submission concerning representation
Search/Exam
Mar 3, 2022
Mar 3, 2022
Mar 3, 2022
Intention to grant (signatures)
Search/Exam
Mar 3, 2022
Text intended for grant (clean copy)
Search/Exam
Mar 3, 2022
Feb 21, 2022
(Electronic) Receipt
Search/Exam
Feb 21, 2022
Letter accompanying subsequently filed items
Search/Exam
Feb 21, 2022
Feb 8, 2022
Feb 7, 2022
(Electronic) Receipt
Search/Exam
Feb 7, 2022
Observations by third parties
Search/Exam
Oct 21, 2021
(Electronic) Receipt
Search/Exam
Oct 21, 2021
Amended description with annotations
Search/Exam
Oct 21, 2021
Description
Search/Exam
Oct 21, 2021
Drawings
Search/Exam
Oct 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 21, 2021
Sep 30, 2021
Annex to the communication
Search/Exam
Sep 30, 2021
Communication from the Examining Division
Search/Exam
Sep 27, 2021
Sep 27, 2021
Sep 22, 2021
(Electronic) Receipt
Search/Exam
Sep 22, 2021
Amended description with annotations
Search/Exam
Sep 22, 2021
Description
Search/Exam
Sep 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 22, 2021
Sep 21, 2021
(Electronic) Receipt
Search/Exam
Sep 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 21, 2021
Non-patent literature filed by a third party
Search/Exam
Sep 21, 2021
Non-patent literature filed by a third party
Search/Exam
Sep 21, 2021
Non-patent literature filed by a third party
Search/Exam
Sep 21, 2021
Observations by third parties
Search/Exam
Sep 21, 2021
Patent document filed by a Third party
Search/Exam
Sep 21, 2021
Patent document filed by a Third party
Search/Exam
Sep 9, 2021
Annex to the communication
Search/Exam
Sep 9, 2021
Communication from the Examining Division
Search/Exam
Sep 2, 2021
Examination started
Search/Exam
May 18, 2021
(Electronic) Receipt
Search/Exam
May 18, 2021
Letter accompanying subsequently filed items
Search/Exam
May 18, 2021
May 14, 2021
Nov 25, 2020
Oct 15, 2020
Oct 12, 2020
Sep 25, 2020
Sep 23, 2020
Communication to designated inventor
Search/Exam
Aug 24, 2020
Aug 24, 2020
Aug 14, 2020
(Electronic) Receipt
Search/Exam
Aug 14, 2020
Aug 14, 2020
Amended claims with annotations
Search/Exam
Aug 14, 2020
Request for entry into the European phase
Search/Exam
Aug 14, 2020
Submission concerning representation
Search/Exam
Jun 26, 2020
Information on entry into European phase
Search/Exam
Mar 3, 2020
Mar 3, 2020
Mar 3, 2020
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Jan 2, 2020
Notification of election of EPO
Search/Exam
Dec 11, 2019
Dec 4, 2019
Dec 4, 2019
Annex
PCT2
Dec 4, 2019
PCT demand form
PCT2
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Sep 10, 2019
Aug 22, 2019
Copy of the international search report
Search/Exam
Aug 22, 2019
Copy of the international search report
Search/Exam
Aug 22, 2019
Published international application - A1
Search/Exam
Apr 18, 2019
ISR: cited documents
PCTISA
Apr 18, 2019
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Mar 25, 2019
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Feb 15, 2019
(Electronic) Receipt
PCTRO
Feb 15, 2019
Abstract
PCTRO
Feb 15, 2019
Claims
PCTRO
Feb 15, 2019
Description
PCTRO
Feb 15, 2019
Feb 15, 2019
Drawings
PCTRO
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019