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The patent EP3111832 was granted to Dexcom on Dec 27, 2023. The application was filed on Jul 13, 2005 under application number EP16179208A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| ROCHE | Sep 27, 2024 | GRUNECKER PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US19990447227 |
| DESCRIPTION | US20030528382 |
| DESCRIPTION | US20030632537 |
| DESCRIPTION | US20030633367 |
| DESCRIPTION | US20030646333 |
| DESCRIPTION | US20030647065 |
| DESCRIPTION | US20030648849 |
| DESCRIPTION | US20030695636 |
| DESCRIPTION | US20040021046 |
| DESCRIPTION | US20040021162 |
| DESCRIPTION | US20040789359 |
| DESCRIPTION | US20040838658 |
| DESCRIPTION | US20040838909 |
| DESCRIPTION | US20040838912 |
| DESCRIPTION | US20040842716 |
| DESCRIPTION | US20040885476 |
| DESCRIPTION | US20040896312 |
| DESCRIPTION | US20040896639 |
| DESCRIPTION | US20040897312 |
| DESCRIPTION | US20040991353 |
| DESCRIPTION | US20040991966 |
| DESCRIPTION | US20050034343 |
| DESCRIPTION | US20050034344 |
| DESCRIPTION | US20050038340 |
| DESCRIPTION | US20050039269 |
| DESCRIPTION | US20050055779 |
| DESCRIPTION | US20050077643 |
| DESCRIPTION | US20050077693 |
| DESCRIPTION | US20050077713 |
| DESCRIPTION | US20050077714 |
| DESCRIPTION | US20050077715 |
| DESCRIPTION | US20050077739 |
| DESCRIPTION | US20050077740 |
| DESCRIPTION | US20050077759 |
| DESCRIPTION | US20050077763 |
| DESCRIPTION | US20050077765 |
| DESCRIPTION | US20050077883 |
| DESCRIPTION | US20050078072 |
| DESCRIPTION | US20050078230 |
| DESCRIPTION | US20050078232 |
| DESCRIPTION | US20050456104 |
| DESCRIPTION | US20050763504 |
| DESCRIPTION | US20050792004 |
| DESCRIPTION | US2003032874 |
| DESCRIPTION | US2003217966 |
| DESCRIPTION | US2004045879 |
| DESCRIPTION | US2004186362 |
| DESCRIPTION | US2005027180 |
| DESCRIPTION | US2005027181 |
| DESCRIPTION | US2005027462 |
| DESCRIPTION | US2005027463 |
| DESCRIPTION | US2005031689 |
| DESCRIPTION | US2005033132 |
| DESCRIPTION | US2005043598 |
| DESCRIPTION | US2005051427 |
| DESCRIPTION | US2005051440 |
| DESCRIPTION | US2005054909 |
| DESCRIPTION | US2005056552 |
| DESCRIPTION | US2005090607 |
| DESCRIPTION | US3964974 |
| DESCRIPTION | US4259540 |
| DESCRIPTION | US4757022 |
| DESCRIPTION | US4994167 |
| DESCRIPTION | US5285513 |
| DESCRIPTION | US6001067 |
| DESCRIPTION | US6248067 |
| DESCRIPTION | US6514718 |
| DESCRIPTION | US6558321 |
| DESCRIPTION | US6565509 |
| DESCRIPTION | US6695860 |
| DESCRIPTION | US6702857 |
| DESCRIPTION | US6741877 |
| DESCRIPTION | US6862465 |
| OPPOSITION | US2002161288 |
| OPPOSITION | US6424847 |
| OPPOSITION | US6558321 |
| OPPOSITION | WO2006017358 |
| SEARCH | US2001016682 |
| SEARCH | US2002161288 |
| SEARCH | US2003125612 |
| SEARCH | US6579690 |
| SEARCH | WO0205702 |
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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Jul 15, 2025
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Means of redress
OPPO
Apr 10, 2025
Oct 11, 2024
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Jan 9, 2024
Nov 30, 2023
Decision to grant a European patent
Search/Exam
Nov 21, 2023
(Electronic) Receipt
Search/Exam
Nov 21, 2023
Filing of the translations of the claims
Search/Exam
Nov 21, 2023
French translation of claims
Search/Exam
Nov 21, 2023
German translation of the claims
Search/Exam
Nov 21, 2023
Letter accompanying subsequently filed items
Search/Exam
Jul 26, 2023
Jul 26, 2023
Jul 26, 2023
Jul 26, 2023
Intention to grant (signatures)
Search/Exam
Jul 26, 2023
Text intended for grant (clean copy)
Search/Exam
Jul 26, 2023
Jul 20, 2023
Annex to a communication
Search/Exam
Jul 20, 2023
Annex to the communication
Search/Exam
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Jul 10, 2023
(Electronic) Receipt
Search/Exam
Jul 10, 2023
Amended claims with annotations
Search/Exam
Jul 10, 2023
Amended claims with annotations
Search/Exam
Jul 10, 2023
Claims
Search/Exam
Jul 10, 2023
Claims
Search/Exam
Jul 10, 2023
Letter accompanying subsequently filed items
Search/Exam
Jul 10, 2023
Letter dealing with oral proceedings
Search/Exam
Jul 6, 2023
Annex to the communication
Search/Exam
Jul 6, 2023
Consultation by telephone/in person
Search/Exam
Jul 6, 2023
Jun 7, 2023
Annex to the communication
Search/Exam
Jun 7, 2023
May 11, 2023
(Electronic) Receipt
Search/Exam
May 11, 2023
Amended claims with annotations
Search/Exam
May 11, 2023
Amended claims with annotations
Search/Exam
May 11, 2023
Claims
Search/Exam
May 11, 2023
Claims
Search/Exam
May 11, 2023
Letter accompanying subsequently filed items
Search/Exam
May 11, 2023
Letter dealing with oral proceedings
Search/Exam
Feb 10, 2023
Annex to the communication
Search/Exam
Feb 10, 2023
Summons to attend oral proceedings
Search/Exam
Jul 26, 2022
Decision to allow further processing
Search/Exam
Jul 15, 2022
(Electronic) Receipt
Search/Exam
Jul 15, 2022
Amended claims with annotations
Search/Exam
Jul 15, 2022
Claims
Search/Exam
Jul 15, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 15, 2022
Request for further processing
Search/Exam
May 6, 2022
Feb 3, 2022
Jan 31, 2022
(Electronic) Receipt
Search/Exam
Jan 31, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 31, 2022
Sep 30, 2021
Annex to the communication
Search/Exam
Sep 30, 2021
Communication from the Examining Division
Search/Exam
Sep 15, 2020
(Electronic) Receipt
Search/Exam
Sep 15, 2020
Amended claims with annotations
Search/Exam
Sep 15, 2020
Amended description with annotations
Search/Exam
Sep 15, 2020
Claims
Search/Exam
Sep 15, 2020
Description
Search/Exam
Sep 15, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 15, 2020
Matter concerning the application
Search/Exam
Apr 3, 2020
(Electronic) Receipt
Search/Exam
Apr 3, 2020
Amended claims with annotations
Search/Exam
Apr 3, 2020
Amended description with annotations
Search/Exam
Apr 3, 2020
Claims
Search/Exam
Apr 3, 2020
Description
Search/Exam
Apr 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 3, 2020
Feb 13, 2020
Feb 10, 2020
(Electronic) Receipt
Search/Exam
Feb 10, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 10, 2020
Oct 10, 2019
Annex to the communication
Search/Exam
Oct 10, 2019
Communication from the Examining Division
Search/Exam
Oct 1, 2019
Examination started
Search/Exam
Apr 30, 2019
Apr 16, 2019
(Electronic) Receipt
Search/Exam
Apr 16, 2019
Enquiry as to the processing of the file
Search/Exam
Apr 16, 2019
Letter accompanying subsequently filed items
Search/Exam
Dec 8, 2017
Dec 1, 2017
Jul 4, 2017
(Electronic) Receipt
Search/Exam
Jul 4, 2017
Jul 4, 2017
Amended claims with annotations
Search/Exam
Jul 4, 2017
Amendments received before examination
Search/Exam
Jul 4, 2017
Letter accompanying subsequently filed items
Search/Exam
Jan 10, 2017
Dec 7, 2016
Notification of forthcoming publication
Search/Exam
Dec 7, 2016
Refund of fees
Search/Exam
Nov 24, 2016
Nov 24, 2016
European search opinion
Search/Exam
Nov 24, 2016
European search report
Search/Exam
Nov 24, 2016
Information on Search Strategy
Search/Exam
Sep 5, 2016
Communication to designated inventor
Search/Exam
Sep 5, 2016
Communication to designated inventor
Search/Exam
Sep 5, 2016
Communication to designated inventor
Search/Exam
Aug 31, 2016
Refund of fees
Search/Exam
Jul 13, 2016
Abstract
Search/Exam
Jul 13, 2016
Jul 13, 2016
Claims
Search/Exam
Jul 13, 2016
Description
Search/Exam
Jul 13, 2016
Designation of inventor
Search/Exam
Jul 13, 2016
Drawings
Search/Exam
Jul 13, 2016
Request for grant of a European patent
Search/Exam
Mar 6, 2006
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