The weekly litigation news digest is live. Subscribe now
The patent EP1972794 was granted to Pfeiffer Vacuum on Jan 24, 2018. The application was originally filed on Mar 15, 2008 under application number EP08004892A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102006053237 |
| OPPOSITION | DE19521855 |
| OPPOSITION | DE2119917 |
| OPPOSITION | GB1355949 |
| OPPOSITION | GB2073828 |
| OPPOSITION | GB936213 |
| OPPOSITION | JPH0351517 |
| OPPOSITION | US2380327 |
| OPPOSITION | US4915515 |
| OPPOSITION | US5571341 |
| OPPOSITION | US6431761 |
| SEARCH | DE19521855 |
| SEARCH | DE8810291U |
| SEARCH | JP3681811B |
| SEARCH | WO2006131694 |
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
Nov 20, 2020
Nov 20, 2020
Nov 17, 2020
Jun 23, 2020
Jun 4, 2020
May 20, 2020
May 20, 2020
May 20, 2020
May 6, 2020
Mar 25, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Means of redress
OPPO
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Feb 13, 2020
Feb 13, 2020
Feb 10, 2020
Feb 10, 2020
Feb 4, 2020
Feb 4, 2020
Dec 19, 2019
Dec 12, 2019
Dec 12, 2019
Dec 12, 2019
Dec 12, 2019
Dec 12, 2019
Dec 12, 2019
Dec 12, 2019
Dec 12, 2019
Nov 15, 2019
Nov 8, 2019
Nov 8, 2019
Jul 19, 2019
Jul 19, 2019
Jul 15, 2019
Jul 15, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
May 24, 2019
May 20, 2019
May 20, 2019
May 20, 2019
Feb 18, 2019
Dec 7, 2018
Dec 7, 2018
Dec 6, 2018
Dec 5, 2018
Dec 5, 2018
Nov 30, 2018
Nov 30, 2018
Nov 30, 2018
Nov 28, 2018
Nov 28, 2018
Nov 28, 2018
Nov 27, 2018
Nov 2, 2018
Nov 2, 2018
Oct 24, 2018
Oct 24, 2018
Oct 24, 2018
Oct 24, 2018
Oct 24, 2018
Oct 24, 2018
Oct 24, 2018
Oct 24, 2018
Oct 24, 2018
Oct 24, 2018
Oct 24, 2018
Oct 24, 2018
Oct 24, 2018
Feb 2, 2018
Jan 5, 2018
Decision to grant a European patent
Search/Exam
Dec 13, 2017
(Electronic) Receipt
Search/Exam
Dec 13, 2017
English translation of the claims
Search/Exam
Dec 13, 2017
Filing of the translations of the claims
Search/Exam
Dec 13, 2017
French translation of claims
Search/Exam
Dec 13, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 15, 2017
Sep 15, 2017
Sep 15, 2017
Intention to grant (signatures)
Search/Exam
Sep 15, 2017
Text intended for grant (clean copy)
Search/Exam
Sep 15, 2017
Jul 19, 2017
Examination started
Search/Exam
Mar 30, 2017
Mar 30, 2017
Submission concerning representation
Search/Exam
Sep 30, 2014
Sep 19, 2014
Sep 19, 2014
Amended claims with annotations
Search/Exam
Sep 19, 2014
Sep 19, 2014
Amended description with annotations
Search/Exam
Sep 19, 2014
Amendments received before examination
Search/Exam
Sep 19, 2014
Letter concerning fees and payments
Search/Exam
Sep 19, 2014
Payment of fees and costs
Search/Exam
Aug 26, 2014
Mar 24, 2014
Feb 13, 2014
Feb 13, 2014
European search opinion
Search/Exam
Feb 13, 2014
European search report
Search/Exam
Feb 4, 2014
Search started
Search/Exam
Aug 27, 2008
Notification of forthcoming publication
Search/Exam
Jun 17, 2008
Modified abstract
Search/Exam
Mar 14, 2008
Abstract
Search/Exam
Mar 14, 2008
Claims
Search/Exam
Mar 14, 2008
Description
Search/Exam
Mar 14, 2008
Designation of inventor
Search/Exam
Mar 14, 2008
Drawings
Search/Exam
Mar 14, 2008
Priority document
Search/Exam
Mar 14, 2008
Request for grant of a European patent
Search/Exam