The patent EP2957772 was granted to Pfeiffer Vacuum on Dec 14, 2022. The application was originally filed on Apr 23, 2015 under application number EP15164777A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
Get a free citation report including examiner, opposition, and international search citations.
Get Citation ReportThe 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
Nov 17, 2022
Nov 17, 2022
Nov 11, 2022
Nov 11, 2022
Nov 11, 2022
Nov 11, 2022
Nov 9, 2022
Nov 9, 2022
Nov 9, 2022
Nov 9, 2022
Nov 9, 2022
Sep 27, 2022
Sep 27, 2022
Sep 27, 2022
Sep 19, 2022
Jun 14, 2022
Jun 9, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Means of redress
OPPO
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Nov 29, 2021
Nov 22, 2021
Nov 22, 2021
Nov 18, 2021
Nov 18, 2021
Nov 17, 2021
Nov 17, 2021
Nov 15, 2021
Nov 15, 2021
Description
OPPO
Nov 15, 2021
Nov 15, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 4, 2021
Nov 2, 2021
Nov 2, 2021
Nov 2, 2021
Sep 8, 2021
Sep 8, 2021
Sep 8, 2021
Sep 7, 2021
Aug 30, 2021
Aug 26, 2021
Aug 26, 2021
Aug 23, 2021
Aug 23, 2021
Description
OPPO
Aug 23, 2021
Aug 23, 2021
Aug 23, 2021
Aug 19, 2021
Aug 19, 2021
Aug 19, 2021
Description
OPPO
Aug 19, 2021
Aug 19, 2021
Aug 19, 2021
Aug 19, 2021
Jul 5, 2021
Jul 5, 2021
Nov 12, 2020
Nov 10, 2020
Nov 9, 2020
Nov 9, 2020
Nov 9, 2020
Nov 6, 2020
Nov 3, 2020
Nov 3, 2020
Nov 3, 2020
Nov 3, 2020
Nov 2, 2020
Nov 2, 2020
Nov 2, 2020
Nov 2, 2020
Nov 2, 2020
Oct 30, 2020
Oct 30, 2020
Oct 30, 2020
Oct 30, 2020
Oct 30, 2020
Oct 30, 2020
Oct 27, 2020
Oct 27, 2020
Oct 26, 2020
Oct 20, 2020
Oct 15, 2020
Oct 13, 2020
Oct 13, 2020
Oct 13, 2020
Oct 6, 2020
Oct 6, 2020
Sep 1, 2020
Aug 28, 2020
Aug 28, 2020
Aug 28, 2020
Aug 28, 2020
Aug 28, 2020
Aug 26, 2020
Aug 26, 2020
Aug 26, 2020
Aug 26, 2020
Aug 26, 2020
Aug 26, 2020
Aug 26, 2020
Aug 26, 2020
Aug 20, 2020
Aug 20, 2020
Aug 20, 2020
Jul 20, 2020
Jul 20, 2020
Mar 2, 2020
Mar 2, 2020
Feb 24, 2020
Oct 29, 2019
Oct 24, 2019
Oct 23, 2019
Oct 23, 2019
Oct 23, 2019
Oct 23, 2019
Oct 23, 2019
Oct 23, 2019
Oct 23, 2019
Oct 22, 2019
Oct 22, 2019
Oct 22, 2019
Oct 22, 2019
Oct 22, 2019
Oct 22, 2019
Oct 22, 2019
Oct 22, 2019
Jul 16, 2019
Jul 16, 2019
Jul 15, 2019
Jul 3, 2019
Jul 3, 2019
Jul 3, 2019
Jul 3, 2019
Jul 3, 2019
Jul 3, 2019
Oct 15, 2018
Oct 3, 2018
Sep 6, 2018
Decision to grant a European patent
Search/Exam
Aug 23, 2018
English translation of the claims
Search/Exam
Aug 23, 2018
Filing of the translations of the claims
Search/Exam
Aug 23, 2018
French translation of claims
Search/Exam
Aug 23, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 22, 2018
English translation of the claims
Search/Exam
Aug 22, 2018
Filing of the translations of the claims
Search/Exam
Aug 22, 2018
French translation of claims
Search/Exam
Apr 25, 2018
Apr 25, 2018
Apr 25, 2018
Intention to grant (signatures)
Search/Exam
Apr 25, 2018
Text intended for grant (clean copy)
Search/Exam
Apr 25, 2018
Jan 24, 2018
Amended claims with annotations
Search/Exam
Jan 24, 2018
Amended description with annotations
Search/Exam
Jan 24, 2018
Claims
Search/Exam
Jan 24, 2018
Description
Search/Exam
Jan 24, 2018
Jan 23, 2018
Amended claims with annotations
Search/Exam
Jan 23, 2018
Amended description with annotations
Search/Exam
Jan 23, 2018
Claims
Search/Exam
Jan 23, 2018
Description
Search/Exam
Jan 23, 2018
Nov 7, 2017
Annex to the communication
Search/Exam
Nov 7, 2017
Communication from the Examining Division
Search/Exam
Oct 27, 2017
Examination started
Search/Exam
Jun 24, 2016
Jun 24, 2016
Amended claims with annotations
Search/Exam
Jun 24, 2016
Jun 24, 2016
Amended description with annotations
Search/Exam
Jun 24, 2016
Amendments received before examination
Search/Exam
Jun 24, 2016
Written request for examination
Search/Exam
Jun 23, 2016
Jun 23, 2016
Amended claims with annotations
Search/Exam
Jun 23, 2016
Jun 23, 2016
Amended description with annotations
Search/Exam
Jun 23, 2016
Amendments received before examination
Search/Exam
Jun 23, 2016
Written request for examination
Search/Exam
Jan 25, 2016
Dec 23, 2015
Dec 17, 2015
Dec 17, 2015
European search opinion
Search/Exam
Dec 17, 2015
European search report
Search/Exam
Dec 17, 2015
Information on Search Strategy
Search/Exam
Dec 7, 2015
Search started
Search/Exam
Nov 25, 2015
Notification of forthcoming publication
Search/Exam
Nov 18, 2015
Modified abstract
Search/Exam
Jun 16, 2015
Communication to designated inventor
Search/Exam
Apr 25, 2015
Letter concerning the priority
Search/Exam
Apr 25, 2015
Priority document
Search/Exam
Apr 23, 2015
Abstract
Search/Exam
Apr 23, 2015
Apr 23, 2015
Claims
Search/Exam
Apr 23, 2015
Description
Search/Exam
Apr 23, 2015
Designation of inventor
Search/Exam
Apr 23, 2015
Drawings
Search/Exam
Apr 23, 2015
Priority search results
Search/Exam
Apr 23, 2015
Request for grant of a European patent
Search/Exam