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The patent EP3378952 was granted to Guardant Health on Feb 5, 2020. The application was filed on Dec 24, 2014 under application number EP18156447A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| GRUNECKER PATENT UND RECHTSANWALTE PARTG MBB | Nov 5, 2020 | GRUNECKER | ADMISSIBLE |
| GRUNECKER PATENT UND RECHTSANWALTE PARTG MBB | Nov 5, 2020 | GRUNECKER PATENT | ADMISSIBLE |
| FOUNDATION MEDICINE | Nov 5, 2020 | POHLMAN | WITHDRAWN |
| BUHLER | Nov 4, 2020 | MAIWALD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2013US58061 |
| DESCRIPTION | US2001053519 |
| DESCRIPTION | US2003152490 |
| DESCRIPTION | US2011160078 |
| DESCRIPTION | US6582908 |
| OPPOSITION | EP3378952 |
| OPPOSITION | US2013096011 |
| OPPOSITION | US2020115746 |
| OPPOSITION | WO2012038839 |
| OPPOSITION | WO2012142213 |
| OPPOSITION | WO2012148477 |
| OPPOSITION | WO2013123442 |
| OPPOSITION | WO2013142389 |
| OPPOSITION | WO2013181170 |
| OPPOSITION | WO2014039556 |
| OPPOSITION | WO2015100427 |
| SEARCH | WO2012054873 |
| SEARCH | WO2013123442 |
| SEARCH | WO2013142389 |
| SEARCH | WO2013181170 |
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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Decision to grant a European patent
Search/Exam
Dec 2, 2019
(Electronic) Receipt
Search/Exam
Dec 2, 2019
Filing of the translations of the claims
Search/Exam
Dec 2, 2019
French translation of claims
Search/Exam
Dec 2, 2019
German translation of the claims
Search/Exam
Dec 2, 2019
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Sep 11, 2019
Text intended for grant (clean copy)
Search/Exam
Sep 11, 2019
Aug 28, 2019
(Electronic) Receipt
Search/Exam
Aug 28, 2019
Amended claims with annotations
Search/Exam
Aug 28, 2019
Amended description with annotations
Search/Exam
Aug 28, 2019
Claims
Search/Exam
Aug 28, 2019
Description
Search/Exam
Aug 28, 2019
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Apr 18, 2019
Text intended for grant (clean copy)
Search/Exam
Apr 18, 2019
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Examination started
Search/Exam
Dec 10, 2018
(Electronic) Receipt
Search/Exam
Dec 10, 2018
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Amended description with annotations
Search/Exam
Dec 10, 2018
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Search/Exam
Dec 10, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 1, 2018
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Notification of forthcoming publication
Search/Exam
Jun 27, 2018
Refund of fees
Search/Exam
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European search opinion
Search/Exam
Jun 20, 2018
European search report
Search/Exam
Jun 20, 2018
Information on Search Strategy
Search/Exam
Jun 6, 2018
Search started
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May 11, 2018
(Electronic) Receipt
Search/Exam
May 11, 2018
Claims
Search/Exam
May 11, 2018
Letter accompanying subsequently filed items
Search/Exam
May 11, 2018
Matter concerning the application
Search/Exam
Apr 6, 2018
Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Mar 1, 2018
Invitation to file claims
Search/Exam
Feb 13, 2018
Abstract
Search/Exam
Feb 13, 2018
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Description
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Feb 13, 2018
Designation of inventor
Search/Exam
Feb 13, 2018
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Search/Exam
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Letter concerning search matters
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Feb 13, 2018
Request for grant of a European patent
Search/Exam
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