The weekly litigation news digest is live. Subscribe now
The patent EP2671836 was granted to Mitsubishi Electric on Mar 24, 2021. The application was filed on Feb 2, 2011 under application number EP11857587A. 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 |
|---|---|---|---|
| KONE | Dec 23, 2021 | KALLIONIEMI | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2004534707 |
| DESCRIPTION | JPH0891730 |
| INTERNATIONAL-SEARCH-REPORT | JP2005509581 |
| INTERNATIONAL-SEARCH-REPORT | JP2008143614 |
| INTERNATIONAL-SEARCH-REPORT | JPH0891730 |
| OPPOSITION | WO2006108433 |
| OPPOSITION | WO2008081073 |
| OPPOSITION | WO2008081074 |
| OPPOSITION | WO2010122211 |
| SEARCH | JP2008143614 |
| SEARCH | US2003094332 |
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
Aug 10, 2023
Aug 10, 2023
Aug 7, 2023
Apr 27, 2023
Apr 26, 2023
Apr 26, 2023
Apr 26, 2023
Apr 26, 2023
Means of redress
OPPO
Apr 26, 2023
Apr 26, 2023
Apr 11, 2023
Apr 11, 2023
Apr 11, 2023
Mar 23, 2023
Mar 23, 2023
Mar 23, 2023
Feb 23, 2023
Feb 20, 2023
Feb 20, 2023
Feb 20, 2023
Feb 20, 2023
Feb 17, 2023
Feb 15, 2023
Feb 15, 2023
Feb 15, 2023
Feb 15, 2023
Feb 15, 2023
Feb 14, 2023
Feb 14, 2023
Feb 14, 2023
Dec 5, 2022
Dec 5, 2022
Oct 14, 2022
Oct 13, 2022
Oct 13, 2022
Oct 13, 2022
Oct 13, 2022
Oct 13, 2022
Oct 13, 2022
Oct 13, 2022
Aug 31, 2022
Aug 25, 2022
Aug 25, 2022
Aug 25, 2022
May 25, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 20, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 11, 2022
Jan 11, 2022
(Electronic) Receipt
Search/Exam
Jan 11, 2022
Jan 11, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 11, 2022
Letter concerning fees and payments
Search/Exam
Jan 11, 2022
Jan 7, 2022
Jan 5, 2022
Dec 29, 2021
Dec 29, 2021
Dec 29, 2021
Dec 29, 2021
Dec 29, 2021
Dec 29, 2021
Dec 29, 2021
Dec 29, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Apr 6, 2021
Feb 25, 2021
Decision to grant a European patent
Search/Exam
Jan 22, 2021
(Electronic) Receipt
Search/Exam
Jan 22, 2021
Filing of the translations of the claims
Search/Exam
Jan 22, 2021
French translation of claims
Search/Exam
Jan 22, 2021
German translation of the claims
Search/Exam
Jan 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2020
Oct 19, 2020
Oct 19, 2020
Text intended for grant (clean copy)
Search/Exam
Oct 19, 2020
Sep 10, 2020
(Electronic) Receipt
Search/Exam
Sep 10, 2020
Amended description with annotations
Search/Exam
Sep 10, 2020
Description
Search/Exam
Sep 10, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 10, 2020
May 12, 2020
May 12, 2020
May 12, 2020
Intention to grant (signatures)
Search/Exam
May 12, 2020
Text intended for grant (clean copy)
Search/Exam
May 12, 2020
Aug 7, 2019
(Electronic) Receipt
Search/Exam
Aug 7, 2019
Amended claims with annotations
Search/Exam
Aug 7, 2019
Claims
Search/Exam
Aug 7, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 7, 2019
Apr 8, 2019
Annex to the communication
Search/Exam
Apr 8, 2019
Communication from the Examining Division
Search/Exam
Apr 1, 2019
Examination started
Search/Exam
Jun 14, 2018
Mar 7, 2017
(Electronic) Receipt
Search/Exam
Mar 7, 2017
Mar 7, 2017
Amended claims with annotations
Search/Exam
Mar 7, 2017
Amendments received before examination
Search/Exam
Mar 7, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 8, 2016
Aug 22, 2016
Aug 22, 2016
European search opinion
Search/Exam
Aug 22, 2016
Information on Search Strategy
Search/Exam
Aug 22, 2016
Supplementary European search report
Search/Exam
Aug 12, 2016
Search started
Search/Exam
Sep 26, 2014
Submission concerning representation
Search/Exam
Nov 13, 2013
Notification of forthcoming publication
Search/Exam
Sep 10, 2013
Sep 6, 2013
Communication to designated inventor
Search/Exam
Sep 6, 2013
Communication to designated inventor
Search/Exam
Aug 20, 2013
Aug 20, 2013
Jul 23, 2013
Abstract
Search/Exam
Jul 23, 2013
Matter concerning the application
Search/Exam
Jul 10, 2013
Jul 8, 2013
Jul 8, 2013
Information regarding early processing
Search/Exam
Jun 24, 2013
(Electronic) Receipt
Search/Exam
Jun 24, 2013
Abstract
Search/Exam
Jun 24, 2013
Jun 24, 2013
Claims
Search/Exam
Jun 24, 2013
Description
Search/Exam
Jun 24, 2013
Drawings
Search/Exam
Jun 24, 2013
Request for entry into the European phase
Search/Exam
Jun 14, 2013
Information on entry into European phase
Search/Exam
Aug 9, 2012
Copy of the international search report
Search/Exam
Aug 9, 2012
Aug 9, 2012
International publication pamphlet
Search/Exam