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Optical Transceiver Unit And Device For Signal Transmission

Patent No. EP3931986 (titled "Optical Transceiver Unit And Device For Signal Transmission") was filed by Fraunhofer Gesellschaft ZUR Frderung DER Angewandten Forschung EV on Feb 25, 2020. The application was issued on Jan 15, 2025.

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Latest UPC cases involving this patent.

Case Number	Filing Date	Plaintiff	Proceeding Type
UPC_CFI_0001918/2025	Jul 19, 2025	Fraunhofer Gesellschaft ZUR Forderung DER Angewandten Forschung EV	Infringement

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Dossier Documents

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 19, 2025
Communication regarding the expiry of opposition period
Jan 28, 2025
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Dec 19, 2024
Decision to grant a European patent
Dec 9, 2024
(Electronic) Receipt
Dec 9, 2024
English translation of the claims
Dec 9, 2024
Filing of the translations of the claims
Dec 9, 2024
French translation of claims
Dec 9, 2024
Letter accompanying subsequently filed items
Aug 14, 2024
Annex to the communication about intention to grant a European patent
Aug 14, 2024
Bibliographic data of the European patent application
Aug 14, 2024
Communication about intention to grant a European patent
Aug 14, 2024
Intention to grant (signatures)
Aug 14, 2024
Text intended for grant (clean copy)
Aug 14, 2024
Text intended for grant (version for approval)
Jun 24, 2024
Examination started
Feb 29, 2024
(Electronic) Receipt
Feb 29, 2024
Letter concerning fees and payments
Apr 20, 2023
(Electronic) Receipt
Apr 20, 2023
Amended claims filed after receipt of (European) search report
Apr 20, 2023
Amended claims with annotations
Apr 20, 2023
Amendments received before examination
Apr 20, 2023
Letter accompanying subsequently filed items
Mar 13, 2023
(Electronic) Receipt
Mar 13, 2023
Letter concerning fees and payments
Apr 8, 2022
(Electronic) Receipt
Apr 8, 2022
Amended claims filed after receipt of (European) search report
Apr 8, 2022
Amended claims with annotations
Apr 8, 2022
Amended description filed after receipt of (European) search report
Apr 8, 2022
Amended description with annotations
Apr 8, 2022
Amended drawings filed after receipt of (European) search report
Apr 8, 2022
Amendments received before examination
Apr 8, 2022
Letter accompanying subsequently filed items
Mar 11, 2022
Letter accompanying subsequently filed items
Mar 11, 2022
Submission concerning change of applicant's name
Feb 10, 2022
(Electronic) Receipt
Feb 10, 2022
Letter concerning fees and payments
Dec 8, 2021
Notification on forthcoming publication of bibliographic data
Oct 5, 2021
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Sep 6, 2021
Annexes to the international preliminary examination report
Sep 6, 2021
Copy of the international preliminary examination report
Aug 25, 2021
(Electronic) Receipt
Aug 25, 2021
Priority search results
Aug 25, 2021
Request for entry into the European phase
Aug 25, 2021
Submission concerning representation
Jul 9, 2021
Information on entry into European phase
Jun 14, 2021
Annex to International preliminary examination report
Jun 14, 2021
International preliminary examination report
Jun 14, 2021
International preliminary examination report - free text sheet
Jun 14, 2021
International preliminary examination report - points I-VIII
Jun 14, 2021
Transmittal of International Preliminary Examination Report
Apr 21, 2021
(Electronic) Receipt
Apr 21, 2021
Letter regarding PCTII procedure
Apr 21, 2021
PCT(IPEA): Amended sheet - claims
Apr 21, 2021
PCT(IPEA): Amended sheet - claims
Apr 21, 2021
Reply to communication PCT/IPEA/408
Mar 23, 2021
Grant of extension of time limit
Mar 18, 2021
(Electronic) Receipt
Mar 18, 2021
Letter regarding PCTII procedure
Mar 18, 2021
Request for extension of time limit
Feb 4, 2021
Notification of election of EPO
Jan 21, 2021
Written opinion
Jan 21, 2021
Written opinion - free text sheet
Jan 21, 2021
Written opinion - points I-VIII
Jan 15, 2021
Notification of receipt of demand
Dec 22, 2020
(Electronic) Receipt
Dec 22, 2020
PCT demand form
Dec 22, 2020
PCT(IPEA): Amended sheet - claims
Dec 22, 2020
PCT(IPEA): Amended sheet - claims
Dec 22, 2020
Payment of fees and costs
Dec 22, 2020
Reply to International Search Opinion
Sep 21, 2020
Priority document (electronically transmitted)
Sep 3, 2020
Copy of the international search report
Sep 3, 2020
Copy of the international search report
Sep 3, 2020
Published international application - A1
Jun 9, 2020
ISR: cited documents
Jun 9, 2020
International Search Report - copy in English for the IB
Jun 9, 2020
Written opinion of the ISA, boxes No. I to VIII
Jun 9, 2020
Written opinion of the ISA, cover sheet
Jun 9, 2020
Written opinion of the ISA, supplemental box
Apr 28, 2020
Incoming letter related to PCT RO
Mar 13, 2020
Notification of receipt of Search copy
Mar 12, 2020
Notification of the international application number and of the international filing date
Mar 9, 2020
Request form for international application (copy for ISA/EP)
Feb 25, 2020
(Electronic) Receipt
Feb 25, 2020
Abstract
Feb 25, 2020
Claims
Feb 25, 2020
Description
Feb 25, 2020
Document concerning fees and payments
Feb 25, 2020
Drawings
Feb 25, 2020
Electronic request for grant of an International application

EP3931986

FRAUNHOFER GESELLSCHAFT ZUR FRDERUNG DER ANGEWANDTEN FORSCHUNG EV

Application Number: EP20707245A
Filing Date: Feb 25, 2020
Status: No Opposition Filed Within Time Limit; Nov 21, 2025
Publication Date: Jan 15, 2025
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