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The patent EP3977921 was granted to Abbott on Jul 5, 2023. The application was filed on Feb 2, 2010 under application number EP21211041A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
Latest UPC cases involving this patent.
| Case Number | Filing Date | Plaintiff | Proceeding Type |
|---|---|---|---|
| CC_14848/2024 | Mar 28, 2024 | Dexcom | Counter Claim For Revocation |
| UPC_CFI_430/2023 | Nov 21, 2023 | Abbott | Infringement |

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| DEXCOM | Mar 28, 2024 | HOFFMANN EITLE | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
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| DESCRIPTION | US19350612495 |
| DESCRIPTION | US19390611496 |
| DESCRIPTION | US19460612386 |
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| DESCRIPTION | US20090495709 |
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| DESCRIPTION | US20140612475 |
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| DESCRIPTION | US20250612569 |
| DESCRIPTION | US2004186365 |
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| OPPOSITION | US2005101912 |
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| SEARCH | WO03026728 |
| SEARCH | WO2006121921 |
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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Decision to grant a European patent
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Filing of the translations of the claims
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May 30, 2023
French translation of claims
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May 30, 2023
German translation of the claims
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May 30, 2023
Letter accompanying subsequently filed items
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Amended claims with annotations
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Claims
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Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Examination started
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(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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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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Registration under Rule 23 EPC
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Registration under Rule 23 EPC
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(Electronic) Receipt
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Annex
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Authorisation
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Authorisation
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Authorisation
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Authorisation
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Authorisation
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Authorisation
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Authorisation
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Authorisation
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Apr 6, 2022
Letter accompanying subsequently filed items
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Apr 6, 2022
Letter to the Legal Division
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Mar 10, 2022
Notification of forthcoming publication
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Mar 8, 2022
Refund of fees
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Mar 3, 2022
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European search opinion
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Mar 3, 2022
European search report
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Mar 3, 2022
Information on Search Strategy
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Feb 28, 2022
(Electronic) Receipt
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Feb 28, 2022
Letter concerning fees and payments
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Feb 21, 2022
Search started
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Nov 29, 2021
Abstract
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Nov 29, 2021
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Claims
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Nov 29, 2021
Description
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Nov 29, 2021
Designation of inventor
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Nov 29, 2021
Drawings
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Nov 29, 2021
Letter concerning search matters
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Nov 29, 2021
Letter concerning search matters
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Nov 29, 2021
Matter concerning the application
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Nov 29, 2021
Request for grant of a European patent
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Nov 29, 2021
Submission concerning representation
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Sep 1, 2010
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