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The patent EP3882362 was granted to Guardant Health on May 8, 2024. The application was filed on Mar 15, 2014 under application number EP21157571A. 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 |
|---|---|---|---|
| STRAWMAN | Feb 10, 2025 | FINNEGAN EUROPE | ADMISSIBLE |
| MARGARET DIXON | Feb 7, 2025 | MEWBURN ELLIS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2001053519 |
| DESCRIPTION | US2003152490 |
| DESCRIPTION | US2011160078 |
| DESCRIPTION | US6582908 |
| DESCRIPTION | US7537897 |
| OPPOSITION | US2012071331 |
| OPPOSITION | US7741463 |
| OPPOSITION | WO2004081183 |
| OPPOSITION | WO2010127186 |
| OPPOSITION | WO2012042374 |
| OPPOSITION | WO2012142213 |
| OPPOSITION | WO2012148477 |
| OPPOSITION | WO2013123442 |
| OPPOSITION | WO2013138510 |
| OPPOSITION | WO2013142389 |
| SEARCH | US2009325239 |
| SEARCH | US8209130 |
| SEARCH | WO2008154317 |
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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Description
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Apr 11, 2024
Decision to grant a European patent
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Feb 16, 2024
Feb 13, 2024
(Electronic) Receipt
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Feb 13, 2024
(Electronic) Receipt
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Feb 13, 2024
Filing of the translations of the claims
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Feb 13, 2024
French translation of claims
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Feb 13, 2024
German translation of the claims
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Feb 13, 2024
Letter accompanying subsequently filed items
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Feb 13, 2024
Letter accompanying subsequently filed items
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Feb 13, 2024
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Intention to grant (signatures)
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Oct 5, 2023
Text intended for grant (clean copy)
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Oct 5, 2023
Sep 19, 2023
(Electronic) Receipt
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Sep 19, 2023
Amended claims with annotations
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Sep 19, 2023
Claims
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Sep 19, 2023
Letter accompanying subsequently filed items
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Sep 19, 2023
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(Electronic) Receipt
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Jul 20, 2023
Citation filed by a third party
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Jul 20, 2023
Letter accompanying subsequently filed items
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Jul 20, 2023
Observations by third parties
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Intention to grant (signatures)
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May 25, 2023
Text intended for grant (clean copy)
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May 25, 2023
Mar 6, 2023
(Electronic) Receipt
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Mar 6, 2023
Amended description with annotations
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Mar 6, 2023
Description
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Mar 6, 2023
Letter accompanying subsequently filed items
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Mar 6, 2023
Feb 21, 2023
Annex to the communication
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Feb 21, 2023
Feb 21, 2023
Feb 16, 2023
Examination started
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Mar 22, 2022
(Electronic) Receipt
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Mar 22, 2022
Mar 22, 2022
Amended claims with annotations
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Mar 22, 2022
Amendments received before examination
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Mar 22, 2022
Annex
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Mar 22, 2022
Letter accompanying subsequently filed items
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Sep 27, 2021
Aug 25, 2021
Notification of forthcoming publication
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Aug 13, 2021
Aug 5, 2021
Letter accompanying subsequently filed items
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Aug 5, 2021
Jul 30, 2021
Refund of fees
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Jul 27, 2021
Jul 27, 2021
European search opinion
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Jul 27, 2021
European search report
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Jul 27, 2021
Information on Search Strategy
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Jul 19, 2021
Search started
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May 17, 2021
(Electronic) Receipt
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May 17, 2021
Claims
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May 17, 2021
Description
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May 17, 2021
Letter accompanying subsequently filed items
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May 17, 2021
Maintenance of the application
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Mar 29, 2021
Payment submission rejected
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Mar 8, 2021
Mar 8, 2021
Invitation to file claims
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Feb 17, 2021
Abstract
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Feb 17, 2021
Feb 17, 2021
Description
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Feb 17, 2021
Designation of inventor
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Feb 17, 2021
Drawings
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Feb 17, 2021
Letter concerning search matters
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Feb 17, 2021
Letter concerning search matters
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Feb 17, 2021
Request for grant of a European patent
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May 13, 2016
US-Priority document (transmitted on CD)
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Mar 4, 2016
Oct 14, 2014
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