Transcutaneous Analyte Sensor Systems And Methods

Patent No. EP3397142 (titled "Transcutaneous Analyte Sensor Systems And Methods") was filed by Dexcom on Dec 21, 2016. The application was issued on Sep 23, 2020.

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
ROCHE DIABETES CARE	Jun 22, 2021	TESCHEMACHER
ROCHE	Jun 22, 2021	SIMMONS & SIMMONS MUNICH

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.

Date
Description

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Sep 9, 2025
Refund of fees
Sep 5, 2025
Decision of the Board of Appeal
Sep 5, 2025
F3032 Notification(s) of the decision
Sep 5, 2025
F3032 Notification(s) of the decision
Jul 17, 2025
F3013 Oral Proceedings: Forwarding minutes
Jul 17, 2025
F3013 Oral Proceedings: Forwarding minutes
Jul 17, 2025
F3317 Oral Proceedings: Minutes (Appellant: Proprietor + Opponent)
Jun 6, 2025
F3345 Forwarding of submissions to parties
Jun 3, 2025
(Electronic) Receipt
Jun 3, 2025
Letter accompanying subsequently filed items
Jun 3, 2025
Oral proceedings: reply to date proposed
May 8, 2025
F3345 Forwarding of submissions to parties
Apr 30, 2025
(Electronic) Receipt
Apr 30, 2025
Annexes (other than cited documents) regarding appeal procedure
Apr 30, 2025
Letter accompanying subsequently filed items
Apr 30, 2025
Oral proceedings: reply to date proposed
Apr 9, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Apr 9, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Mar 18, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Mar 18, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Mar 17, 2025
F3022 Oral proceedings: change of board composition
Mar 17, 2025
F3022 Oral proceedings: change of board composition
Mar 17, 2025
F3345 Forwarding of submissions to parties
Mar 13, 2025
F3014 Oral Proceedings: Order cancelling/postponing
Mar 12, 2025
(Electronic) Receipt
Mar 12, 2025
Annexes (other than cited documents) regarding appeal procedure
Mar 12, 2025
F3303.16 Change of composition of the Board (T)
Mar 12, 2025
Letter accompanying subsequently filed items
Mar 12, 2025
Oral proceedings: Request for postponement
Mar 10, 2025
F3011.1 Oral Proceedings: summons
Mar 10, 2025
F3011.1 Oral Proceedings: summons
Mar 5, 2025
Composition of the board (T)
Mar 5, 2025
F3010 Oral proceedings: order for summons
Jan 22, 2024
F3345 Forwarding of submissions to parties
Jan 17, 2024
(Electronic) Receipt
Jan 17, 2024
Letter accompanying subsequently filed items
Jan 17, 2024
Letter relating to Appeal Procedure
Dec 15, 2023
Communication of amended entries in the Register of European Patents
Dec 15, 2023
F3345 Forwarding of submissions to parties
Dec 11, 2023
(Electronic) Receipt
Dec 11, 2023
Letter accompanying subsequently filed items
Dec 11, 2023
Request for change of opponent's representative
Nov 29, 2023
F3345 Forwarding of submissions to parties
Nov 28, 2023
F3345 Forwarding of submissions to parties
Nov 24, 2023
(Electronic) Receipt
Nov 24, 2023
Amended claims with annotations
Nov 24, 2023
Amended claims with annotations
Nov 24, 2023
Amended claims with annotations
Nov 24, 2023
Amended claims with annotations
Nov 24, 2023
Amended claims with annotations
Nov 24, 2023
Amended claims with annotations
Nov 24, 2023
Amended claims with annotations
Nov 24, 2023
Auxiliary request during appeals procedure - 05
Nov 24, 2023
Auxiliary request during appeals procedure - 06
Nov 24, 2023
Auxiliary request during appeals procedure - 07
Nov 24, 2023
Auxiliary request during appeals procedure - 08
Nov 24, 2023
Auxiliary request during appeals procedure - 09
Nov 24, 2023
Auxiliary request during appeals procedure - 10
Nov 24, 2023
Auxiliary request during appeals procedure - 11
Nov 24, 2023
Letter accompanying subsequently filed items
Nov 24, 2023
Reply to appeal
Nov 23, 2023
(Electronic) Receipt
Nov 23, 2023
Letter accompanying subsequently filed items
Nov 23, 2023
Reply to appeal
Jul 14, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Jul 6, 2023
(Electronic) Receipt
Jul 6, 2023
Amended claims with annotations
Jul 6, 2023
Amended claims with annotations
Jul 6, 2023
Amended claims with annotations
Jul 6, 2023
Amended claims with annotations
Jul 6, 2023
Letter accompanying subsequently filed items
Jul 6, 2023
Statement of grounds of appeal
Jul 5, 2023
(Electronic) Receipt
Jul 5, 2023
Letter accompanying subsequently filed items
Jul 5, 2023
Statement of grounds of appeal
May 10, 2023
F3204 Communication of the file number to the parties
May 10, 2023
F3204 Communication of the file number to the parties
May 10, 2023
F3204 Communication of the file number to the parties
May 10, 2023
F3204 Communication of the file number to the parties
May 5, 2023
(Electronic) Receipt
May 5, 2023
Letter accompanying subsequently filed items
May 5, 2023
Notice of appeal
May 3, 2023
(Electronic) Receipt
May 3, 2023
Letter accompanying subsequently filed items
May 3, 2023
Notice of appeal
Feb 27, 2023
Advice of delivery
Feb 27, 2023
Advice of delivery
Feb 24, 2023
Annex to the communication - opposition
Feb 24, 2023
Decision of the Opposition Division and instruction
Feb 24, 2023
Druckexemplar in opposition procedure
Feb 24, 2023
Grounds for the decision (Annex) - opposition
Feb 24, 2023
Interlocutory decision in opposition proceedings
Feb 24, 2023
Interlocutory decision in opposition proceedings
Feb 24, 2023
Means of redress
Feb 24, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 24, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 24, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Feb 24, 2023
Provision of a copy of the minutes - opposition procedure
Feb 24, 2023
Provision of a copy of the minutes - opposition procedure
Feb 24, 2023
Scanned annex to a communication - opposition procedure
Feb 24, 2023
Scanned annex to a communication - opposition procedure
Feb 24, 2023
Scanned annex to a communication - opposition procedure
Feb 24, 2023
Transmittal of decision / summons - opposition
Feb 24, 2023
Transmittal of decision / summons - opposition
Jan 31, 2023
Information about the result of oral proceedings
Dec 14, 2022
Brief communication - Opposition proceedings
Dec 14, 2022
Communication of amended entries
Dec 13, 2022
(Electronic) Receipt
Dec 13, 2022
Letter accompanying subsequently filed items
Dec 6, 2022
(Electronic) Receipt
Dec 6, 2022
Letter accompanying subsequently filed items
Dec 5, 2022
Brief communication - Opposition proceedings
Dec 5, 2022
Brief communication - Opposition proceedings
Dec 2, 2022
Brief communication - Opposition proceedings
Nov 30, 2022
(Electronic) Receipt
Nov 30, 2022
(Electronic) Receipt
Nov 30, 2022
Auxiliary request during Opposition procedure - 06
Nov 30, 2022
Auxiliary request during Opposition procedure - 07
Nov 30, 2022
Auxiliary request during Opposition procedure - 08
Nov 30, 2022
Auxiliary request during Opposition procedure - 09
Nov 30, 2022
Auxiliary request during Opposition procedure - 10
Nov 30, 2022
Auxiliary request during Opposition procedure - 11
Nov 30, 2022
Auxiliary request during Opposition procedure - 12
Nov 30, 2022
Auxiliary request during Opposition procedure - 13
Nov 30, 2022
Auxiliary request during Opposition procedure - 14
Nov 30, 2022
Auxiliary request during Opposition procedure - 15
Nov 30, 2022
Auxiliary request during Opposition procedure - 16
Nov 30, 2022
Auxiliary request during Opposition procedure - 17
Nov 30, 2022
Auxiliary request during Opposition procedure - 18
Nov 30, 2022
Auxiliary request during Opposition procedure - 19
Nov 30, 2022
Auxiliary request during Opposition procedure - 20
Nov 30, 2022
Auxiliary request during Opposition procedure - 21
Nov 30, 2022
Auxiliary request during Opposition procedure - 22
Nov 30, 2022
Auxiliary request during Opposition procedure - 23
Nov 30, 2022
Letter accompanying subsequently filed items
Nov 30, 2022
Letter accompanying subsequently filed items
Nov 30, 2022
Request concerning representative opponent
Nov 30, 2022
Request for interpreters during oral proceedings
Nov 30, 2022
Written submission in preparation to/during oral proceedings
Nov 29, 2022
(Electronic) Receipt
Nov 29, 2022
Letter accompanying subsequently filed items
Nov 29, 2022
Written submission in preparation to/during oral proceedings
Nov 28, 2022
Notification concerning the date of oral proceedings
Nov 28, 2022
Notification concerning the date of oral proceedings
Mar 7, 2022
Advice of delivery
Mar 3, 2022
Advice of delivery
Mar 2, 2022
Annex to the communication - opposition
Mar 2, 2022
Information concerning oral proceedings
Mar 2, 2022
Summons to attend oral proceedings
Mar 2, 2022
Summons to attend oral proceedings
Mar 2, 2022
Transmittal of decision / summons - opposition
Mar 2, 2022
Transmittal of decision / summons - opposition
Feb 25, 2022
Brief communication - Opposition proceedings
Feb 18, 2022
(Electronic) Receipt
Feb 18, 2022
Letter accompanying subsequently filed items
Feb 18, 2022
Reply from the opponent to submission of proprietor
Feb 17, 2022
Brief communication - Opposition proceedings
Feb 17, 2022
Communication of amended entries
Feb 9, 2022
Letter accompanying subsequently filed items
Feb 9, 2022
Request for change of opponent's representative
Nov 24, 2021
Brief communication - Opposition proceedings
Nov 17, 2021
(Electronic) Receipt
Nov 17, 2021
Auxiliary request during Opposition procedure - 01
Nov 17, 2021
Auxiliary request during Opposition procedure - 02
Nov 17, 2021
Auxiliary request during Opposition procedure - 03
Nov 17, 2021
Auxiliary request during Opposition procedure - 04
Nov 17, 2021
Auxiliary request during Opposition procedure - 05
Nov 17, 2021
Letter accompanying subsequently filed items
Nov 17, 2021
Reply of the patent proprietor to the notice(s) of opposition
Jul 7, 2021
Communication of a notice of opposition and request to file observations
Jul 7, 2021
Notice of further oppositions to opponent(s)
Jul 5, 2021
Brief communication - Opposition proceedings
Jun 30, 2021
(Electronic) Receipt
Jun 30, 2021
Letter accompanying subsequently filed items
Jun 30, 2021
Letter regarding the opposition procedure (no time limit)
Jun 28, 2021
Communication of a notice of opposition - first information to patent proprietor
Jun 22, 2021
(Electronic) Receipt
Jun 22, 2021
Citation in opposition procedure - 001
Jun 22, 2021
Citation in opposition procedure - 002
Jun 22, 2021
Citation in opposition procedure - 003
Jun 22, 2021
Citation in opposition procedure - 004
Jun 22, 2021
Citation in opposition procedure - 005
Jun 22, 2021
Citation in opposition procedure - 006
Jun 22, 2021
Citation in opposition procedure - 007
Jun 22, 2021
Citation in opposition procedure - 008
Jun 22, 2021
Citation in opposition procedure - 009
Jun 22, 2021
Citation in opposition procedure - 010
Jun 22, 2021
Consolidated list of cited opposition documents
Jun 22, 2021
Notice of opposition
Jun 22, 2021
Notice of opposition
Oct 5, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 27, 2020
Decision to grant a European patent
Aug 10, 2020
(Electronic) Receipt
Aug 10, 2020
Filing of the translations of the claims
Aug 10, 2020
French translation of claims
Aug 10, 2020
German translation of the claims
Aug 10, 2020
Letter accompanying subsequently filed items
Mar 30, 2020
Bibliographic data of the European patent application
Mar 30, 2020
Communication about intention to grant a European patent
Mar 30, 2020
Intention to grant (signatures)
Mar 30, 2020
Text intended for grant (clean copy)
Mar 30, 2020
Text intended for grant (version for approval)
Mar 11, 2020
Examination started
Feb 18, 2020
(Electronic) Receipt
Feb 18, 2020
Amended description filed after receipt of (European) search report
Feb 18, 2020
Amended description with annotations
Feb 18, 2020
Amendments received before examination
Feb 18, 2020
Letter accompanying subsequently filed items
Feb 17, 2020
(Electronic) Receipt
Feb 17, 2020
Amended claims filed after receipt of (European) search report
Feb 17, 2020
Amended claims with annotations
Feb 17, 2020
Amendments received before examination
Feb 17, 2020
Letter accompanying subsequently filed items
Aug 6, 2019
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Jul 19, 2019
Communication regarding the transmission of the European search report
Jul 19, 2019
European search opinion
Jul 19, 2019
Information on Search Strategy
Jul 19, 2019
Supplementary European search report
Jul 8, 2019
Search started
Feb 18, 2019
(Electronic) Receipt
Feb 18, 2019
Amended claims filed after receipt of (European) search report
Feb 18, 2019
Amended claims with annotations
Feb 18, 2019
Amendments received before examination
Feb 18, 2019
Letter accompanying subsequently filed items
Oct 10, 2018
Notification on forthcoming publication of bibliographic data
Sep 13, 2018
Invitation to indicate correct address of inventor
Sep 13, 2018
Invitation to indicate correct address of inventor
Sep 13, 2018
Invitation to indicate correct address of inventor
Aug 30, 2018
Letter which had not been notified
Aug 30, 2018
Letter which had not been notified
Aug 28, 2018
Letter which had not been notified
Aug 7, 2018
Communication regarding possible amendment of the application/payment of claims fee
Aug 3, 2018
Communication to designated inventor
Aug 3, 2018
Communication to designated inventor
Aug 3, 2018
Communication to designated inventor
Aug 3, 2018
Communication to designated inventor
Aug 3, 2018
Communication to designated inventor
Aug 3, 2018
Communication to designated inventor
Aug 3, 2018
Communication to designated inventor
Aug 3, 2018
Communication to designated inventor
Aug 3, 2018
Communication to designated inventor
Aug 3, 2018
Communication to designated inventor
Aug 3, 2018
Communication to designated inventor
Jul 17, 2018
Copy of the international preliminary report on patentability
Mar 8, 2018
Information regarding early processing
Feb 23, 2018
(Electronic) Receipt
Feb 23, 2018
Request for entry into the European phase
Jul 24, 2017
Priority document (electronically transmitted)
Jul 24, 2017
Priority document (electronically transmitted)
Jul 6, 2017
Copy of the international search report
Jul 6, 2017
Published international application - A1

EP3397142

DEXCOM

Application Number: EP16882396A
Filing Date: Dec 21, 2016
Status: Revoked; Sep 8, 2025
Publication Date: Sep 23, 2020
External Links: Slate, Register , Google Patents

IP Verse

Transcutaneous Analyte Sensor Systems And Methods

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP3397142