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The patent EP2255562 was granted to Fisher Rosemount Systems on Sep 30, 2020. The application was filed on Feb 27, 2009 under application number EP09715491A. 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 |
|---|---|---|---|
| ABB SCHWEIZ | Jun 28, 2021 | MAIWALD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2004090943 |
| INTERNATIONAL-SEARCH-REPORT | US2007161371 |
| INTERNATIONAL-SEARCH-REPORT | US2007298805 |
| INTERNATIONAL-SEARCH-REPORT | WO2007146565 |
| OPPOSITION | US2004090943 |
| OPPOSITION | US2007298805 |
| OPPOSITION | US7035642 |
| OPPOSITION | WO0225506 |
| OPPOSITION | WO0227564 |
| OPPOSITION | WO2004086783 |
| OPPOSITION | WO2007146565 |
| SEARCH | WO2004086783 |
| SEARCH | WO2007047677 |
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
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OPPO
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Oct 12, 2020
Sep 3, 2020
Decision to grant a European patent
Search/Exam
Aug 25, 2020
(Electronic) Receipt
Search/Exam
Aug 25, 2020
Filing of the translations of the claims
Search/Exam
Aug 25, 2020
French translation of claims
Search/Exam
Aug 25, 2020
German translation of the claims
Search/Exam
Aug 25, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 17, 2020
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Intention to grant (signatures)
Search/Exam
Apr 17, 2020
Text intended for grant (clean copy)
Search/Exam
Apr 17, 2020
Jan 8, 2020
(Electronic) Receipt
Search/Exam
Jan 8, 2020
Amended claims with annotations
Search/Exam
Jan 8, 2020
Claims
Search/Exam
Jan 8, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 8, 2020
Sep 2, 2019
Annex to the communication
Search/Exam
Sep 2, 2019
Communication from the Examining Division
Search/Exam
Jul 26, 2019
(Electronic) Receipt
Search/Exam
Jul 26, 2019
Amended claims with annotations
Search/Exam
Jul 26, 2019
Claims
Search/Exam
Jul 26, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 26, 2019
May 23, 2019
May 20, 2019
(Electronic) Receipt
Search/Exam
May 20, 2019
Jan 17, 2019
Annex to the communication
Search/Exam
Jan 17, 2019
Communication from the Examining Division
Search/Exam
Jan 10, 2019
Examination started
Search/Exam
Jul 26, 2018
Jun 10, 2016
Submission concerning representation
Search/Exam
Jun 10, 2016
Submission concerning representation
Search/Exam
Mar 8, 2016
CDS Clean up - amended applicant details
Search/Exam
Aug 27, 2014
Aug 27, 2014
Amended claims with annotations
Search/Exam
Aug 27, 2014
Amendments received before examination
Search/Exam
Feb 18, 2014
Jan 31, 2014
Jan 31, 2014
European search opinion
Search/Exam
Jan 31, 2014
Supplementary European search report
Search/Exam
Jan 23, 2014
Search started
Search/Exam
Jun 13, 2013
Jun 6, 2013
General enquiry
Search/Exam
Mar 23, 2011
Refund of fees
Search/Exam
Nov 12, 2010
Nov 12, 2010
Amended claims with annotations
Search/Exam
Nov 12, 2010
Amendments received before examination
Search/Exam
Nov 4, 2010
Oct 7, 2010
Sep 27, 2010
(Electronic) Receipt
Search/Exam
Sep 27, 2010
Request for entry into the European phase
Search/Exam
Sep 27, 2010
Submission concerning representation
Search/Exam
Sep 16, 2010
Jul 7, 2010
Information on entry into European phase
Search/Exam
Nov 26, 2009
Copy of the international search report
Search/Exam
Nov 26, 2009
Sep 23, 2009
Sep 23, 2009
Sep 3, 2009
Published international application - A2
Search/Exam