Patent No. EP3591073 (titled "Systems And Methods To Detect Rare Mutations And Copy Number Variation") was filed by Guardant Health on Sep 4, 2013. The application was issued on Dec 1, 2021.
A method for detecting and quantifying genetic alterations in cell-free DNA from bodily fluids, comprising tagging and amplifying the DNA, sequencing the tagged DNA, and analyzing the sequence data to identify rare mutations and copy number variations. The method enables the detection of genetic aberrations associated with disease, including cancer, through the analysis of cell-free DNA in bodily fluids.

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 |
|---|---|---|
| GRUNECKER PATENT UND RECHTSANWALTE PARTG MBB | Sep 1, 2022 | GRUNECKER PATENT |
| MARGARET DIXON | Sep 1, 2022 | MEWBURN ELLIS |
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
Get instant alerts for new documents
Dec 15, 2025
Dec 15, 2025
Dec 15, 2025
Dec 15, 2025
Dec 9, 2025
Dec 9, 2025
Dec 8, 2025
Dec 8, 2025
Dec 8, 2025
Dec 8, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Oct 1, 2025
Oct 1, 2025
Oct 1, 2025
Oct 1, 2025
Oct 1, 2025
Oct 1, 2025
Sep 29, 2025
Jun 26, 2025
Jun 26, 2025
Jun 23, 2025
Jun 23, 2025
Jun 23, 2025
Jun 23, 2025
May 27, 2025
May 27, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 13, 2025
May 13, 2025
May 13, 2025
May 13, 2025
May 13, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 2, 2025
May 2, 2025
Mar 14, 2025
Mar 14, 2025
Mar 11, 2025
Mar 11, 2025
Mar 11, 2025
Dec 3, 2024
Dec 3, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Jul 30, 2024
Jul 30, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 21, 2024
May 21, 2024
May 21, 2024
May 20, 2024
May 20, 2024
May 20, 2024
Apr 22, 2024
Apr 22, 2024
Apr 17, 2024
Apr 17, 2024
Apr 17, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Feb 28, 2024
Feb 28, 2024
Feb 28, 2024
Feb 22, 2024
Feb 22, 2024
Feb 21, 2024
Feb 16, 2024
Feb 16, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 14, 2024
Feb 14, 2024
Feb 14, 2024
Jan 12, 2024
Jan 3, 2024
Jan 3, 2024
Jan 2, 2024
Jan 2, 2024
Dec 22, 2023
Dec 22, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Jun 5, 2023
Jun 5, 2023
Jun 5, 2023
Jun 5, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jan 30, 2023
Jan 30, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Sep 13, 2022
Sep 13, 2022
Sep 13, 2022
Sep 12, 2022
Sep 6, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Sep 1, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Dec 14, 2021
Nov 5, 2021
Oct 21, 2021
Oct 21, 2021
Oct 21, 2021
Oct 21, 2021
Oct 21, 2021
Sep 17, 2021
Sep 17, 2021
Sep 17, 2021
Sep 17, 2021
Sep 17, 2021
Aug 13, 2021
Aug 5, 2021
Aug 5, 2021
Apr 28, 2021
Apr 28, 2021
Apr 28, 2021
Apr 28, 2021
Apr 28, 2021
Feb 18, 2021
Feb 18, 2021
Feb 18, 2021
Feb 12, 2021
Oct 19, 2020
Oct 8, 2020
Oct 8, 2020
Oct 8, 2020
Oct 8, 2020
Oct 8, 2020
Oct 8, 2020
Jul 29, 2020
Jul 8, 2020
Jul 8, 2020
Jul 8, 2020
Jan 13, 2020
Dec 11, 2019
Oct 28, 2019
Oct 16, 2019
Oct 16, 2019
Oct 16, 2019
Oct 16, 2019
Oct 14, 2019
Oct 14, 2019
Oct 2, 2019
Aug 21, 2019
Aug 21, 2019
Aug 21, 2019
Aug 21, 2019
Aug 21, 2019
Aug 21, 2019
Aug 21, 2019
Aug 21, 2019
Aug 21, 2019
Aug 21, 2019
Apr 1, 2014
Apr 1, 2014
Apr 1, 2014
Apr 1, 2014