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The patent EP3730044 was granted to Abbott on Dec 29, 2021. The application was filed on Feb 2, 2010 under application number EP20177703A. 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 |
|---|---|---|---|
| DEXCOM DEUTSCHLAND | Jun 23, 2023 | HOFFMANN EITLE | INTERVENTION WITHDRAWN |
| DEXCOM | Sep 28, 2022 | HOFFMANN EITLE | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US19390611496 |
| DESCRIPTION | US19610612384 |
| DESCRIPTION | US19670612279 |
| DESCRIPTION | US19860612306 |
| DESCRIPTION | US19890611558 |
| DESCRIPTION | US19910611558 |
| DESCRIPTION | US19930611558 |
| DESCRIPTION | US19990611654 |
| DESCRIPTION | US20030745878 |
| DESCRIPTION | US20050060365 |
| DESCRIPTION | US20080131012 |
| DESCRIPTION | US20080242823 |
| DESCRIPTION | US20090363712 |
| DESCRIPTION | US20090393921 |
| DESCRIPTION | US20100698124 |
| DESCRIPTION | US20100698129 |
| DESCRIPTION | US2004186365 |
| DESCRIPTION | US2005182306 |
| DESCRIPTION | US2006193375 |
| DESCRIPTION | US2007056858 |
| DESCRIPTION | US2007068807 |
| DESCRIPTION | US2007227911 |
| DESCRIPTION | US2007233013 |
| DESCRIPTION | US2008081977 |
| DESCRIPTION | US2008161666 |
| DESCRIPTION | US2008278333 |
| DESCRIPTION | US2009054748 |
| DESCRIPTION | US2009108992 |
| DESCRIPTION | US4545382 |
| DESCRIPTION | US4711245 |
| DESCRIPTION | US5262035 |
| DESCRIPTION | US5262305 |
| DESCRIPTION | US5264104 |
| DESCRIPTION | US5320715 |
| DESCRIPTION | US5509410 |
| DESCRIPTION | US5543326 |
| DESCRIPTION | US5593852 |
| DESCRIPTION | US5601435 |
| DESCRIPTION | US5628890 |
| DESCRIPTION | US5820551 |
| DESCRIPTION | US5822715 |
| DESCRIPTION | US5899855 |
| DESCRIPTION | US5918603 |
| DESCRIPTION | US6071391 |
| DESCRIPTION | US6103033 |
| DESCRIPTION | US6120676 |
| DESCRIPTION | US6121009 |
| DESCRIPTION | US6134461 |
| DESCRIPTION | US6143164 |
| DESCRIPTION | US6144837 |
| DESCRIPTION | US6161095 |
| DESCRIPTION | US6175752 |
| DESCRIPTION | US6270455 |
| DESCRIPTION | US6284478 |
| DESCRIPTION | US6299757 |
| DESCRIPTION | US6338790 |
| DESCRIPTION | US6377894 |
| DESCRIPTION | US6461496 |
| DESCRIPTION | US6503381 |
| DESCRIPTION | US6514460 |
| DESCRIPTION | US6514718 |
| DESCRIPTION | US6540891 |
| DESCRIPTION | US6560471 |
| DESCRIPTION | US6579690 |
| DESCRIPTION | US6591125 |
| DESCRIPTION | US6592745 |
| DESCRIPTION | US6600997 |
| DESCRIPTION | US6605200 |
| DESCRIPTION | US6605201 |
| DESCRIPTION | US6616819 |
| DESCRIPTION | US6618934 |
| DESCRIPTION | US6650471 |
| DESCRIPTION | US6654625 |
| DESCRIPTION | US6676816 |
| DESCRIPTION | US6730200 |
| DESCRIPTION | US6736957 |
| DESCRIPTION | US6746582 |
| DESCRIPTION | US6749740 |
| DESCRIPTION | US6764581 |
| DESCRIPTION | US6773671 |
| DESCRIPTION | US6881551 |
| DESCRIPTION | US6893545 |
| DESCRIPTION | US6932892 |
| DESCRIPTION | US6932894 |
| DESCRIPTION | US6942518 |
| DESCRIPTION | US7167818 |
| DESCRIPTION | US7299082 |
| DESCRIPTION | US7545272 |
| OPPOSITION | US2004002682 |
| OPPOSITION | US2005283114 |
| OPPOSITION | US2007038044 |
| OPPOSITION | US2007060801 |
| OPPOSITION | US2007219480 |
| OPPOSITION | US2008009805 |
| OPPOSITION | US2008033273 |
| OPPOSITION | US2008097246 |
| OPPOSITION | US2008129486 |
| OPPOSITION | US2008269687 |
| OPPOSITION | US2008278333 |
| OPPOSITION | US2008319414 |
| OPPOSITION | US5390671 |
| OPPOSITION | US5586553 |
| OPPOSITION | US587787 |
| OPPOSITION | US5954643 |
| OPPOSITION | US6560471 |
| OPPOSITION | US6695860 |
| OPPOSITION | US7344500 |
| OPPOSITION | WO2004006982 |
| OPPOSITION | WO2005046780 |
| OPPOSITION | WO2006086423 |
| OPPOSITION | WO2008065646 |
| OPPOSITION | WO2008073813 |
| OPPOSITION | WO2008114223 |
| OPPOSITION | WO2008115409 |
| OPPOSITION | WO2008129532 |
| OPPOSITION | WO2008157821 |
| OPPOSITION | WO2009007287 |
| OPPOSITION | WO2009035773 |
| OPPOSITION | WO9956613 |
| SEARCH | US2007038044 |
| SEARCH | US2008092911 |
| SEARCH | US2008319414 |
| SEARCH | WO2004098683 |
| SEARCH | WO2008014792 |
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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Nov 17, 2025
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Claims
LIMP
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OPPO
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Payment submission rejected
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Registration under Rule 23 EPC
Search/Exam
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Registration under Rule 23 EPC
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Registration under Rule 23 EPC
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Registration under Rule 23 EPC
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Jan 21, 2022
Registration under Rule 23 EPC
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Deficiencies as to Rule 23 EPC
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Jan 20, 2022
Rule 23 - Annex C
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Jan 14, 2022
Annex
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Jan 14, 2022
Letter to the Legal Division
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Decision to grant a European patent
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Nov 22, 2021
(Electronic) Receipt
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Nov 22, 2021
Filing of the translations of the claims
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Nov 22, 2021
French translation of claims
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Nov 22, 2021
German translation of the claims
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Nov 22, 2021
Letter accompanying subsequently filed items
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Nov 16, 2021
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Intention to grant (signatures)
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Nov 16, 2021
Text intended for grant (clean copy)
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Nov 16, 2021
Oct 5, 2021
Deficiencies as to Rule 23 EPC
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Oct 5, 2021
Deficiencies as to Rule 23 EPC
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Deficiencies as to Rule 23 EPC
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Oct 5, 2021
Deficiencies as to Rule 23 EPC
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Oct 5, 2021
Deficiencies as to Rule 23 EPC
Search/Exam
Sep 29, 2021
(Electronic) Receipt
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Sep 29, 2021
Annex
Search/Exam
Sep 29, 2021
Annex
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Sep 29, 2021
Annex
Search/Exam
Sep 29, 2021
Annex
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Sep 29, 2021
Annex
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Sep 29, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 29, 2021
Letter to the Legal Division
Search/Exam
Jul 26, 2021
(Electronic) Receipt
Search/Exam
Jul 26, 2021
Amended claims with annotations
Search/Exam
Jul 26, 2021
Claims
Search/Exam
Jul 26, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 26, 2021
Jun 25, 2021
Annex to the communication
Search/Exam
Jun 25, 2021
Communication from the Examining Division
Search/Exam
Jun 21, 2021
Examination started
Search/Exam
Apr 6, 2021
(Electronic) Receipt
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Apr 6, 2021
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Amended claims with annotations
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Apr 6, 2021
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Amended description with annotations
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Apr 6, 2021
Amendments received before examination
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Apr 6, 2021
Letter accompanying subsequently filed items
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Jan 21, 2021
Document concerning representation
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Document concerning representation
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Jan 21, 2021
Letter accompanying subsequently filed items
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Nov 4, 2020
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Nov 2, 2020
Sep 30, 2020
Notification of forthcoming publication
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Sep 30, 2020
Refund of fees
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Sep 25, 2020
Sep 25, 2020
European search opinion
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Sep 25, 2020
European search report
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Sep 25, 2020
Information on Search Strategy
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Sep 16, 2020
Communication to designated inventor
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Sep 10, 2020
(Electronic) Receipt
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Sep 10, 2020
Letter accompanying subsequently filed items
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Sep 10, 2020
Letter concerning the inventor
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Sep 10, 2020
Search started
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Sep 7, 2020
Sep 2, 2020
Refund of fees
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Sep 1, 2020
Letter which had not been notified
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Jul 24, 2020
Communication to designated inventor
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Jul 24, 2020
Communication to designated inventor
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Jul 24, 2020
Communication to designated inventor
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Jul 24, 2020
Communication to designated inventor
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Jul 24, 2020
Communication to designated inventor
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Jul 24, 2020
Communication to designated inventor
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Jun 12, 2020
Jun 1, 2020
Abstract
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Jun 1, 2020
Jun 1, 2020
Annex
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Jun 1, 2020
Annex
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Jun 1, 2020
Annex
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Jun 1, 2020
Claims
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Jun 1, 2020
Description
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Jun 1, 2020
Designation of inventor
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Jun 1, 2020
Drawings
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Jun 1, 2020
Matter concerning the application
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Jun 1, 2020
Request for grant of a European patent
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Jun 1, 2020
Submission concerning representation
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Jul 27, 2011
Jul 27, 2011
Sep 1, 2010