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The patent EP2337891 was granted to Otis Elevator on Nov 18, 2020. The application was filed on Aug 15, 2008 under application number EP08797934A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| THYSSENKRUPP ELEVATOR | Apr 4, 2018 | THYSSENKRUPP | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US4982829 |
| DESCRIPTION | US6295799 |
| DESCRIPTION | US6540060 |
| DESCRIPTION | US6739433 |
| EXAMINATION | EP1550698 |
| EXAMINATION | US2001007888 |
| INTERNATIONAL-SEARCH-REPORT | EP1671913 |
| INTERNATIONAL-SEARCH-REPORT | GB1408133 |
| INTERNATIONAL-SEARCH-REPORT | JPS56122856 |
| INTERNATIONAL-SEARCH-REPORT | US2004002272 |
| INTERNATIONAL-SEARCH-REPORT | US2005288402 |
| INTERNATIONAL-SEARCH-REPORT | US2006182967 |
| INTERNATIONAL-SEARCH-REPORT | US7168231 |
| INTERNATIONAL-SEARCH-REPORT | WO2007006989 |
| INTERNATIONAL-SEARCH-REPORT | WO9627635 |
| OPPOSITION | DE3921887 |
| OPPOSITION | EP1369464 |
| OPPOSITION | EP1671913 |
| OPPOSITION | US2003166749 |
| OPPOSITION | US2004036061 |
| OPPOSITION | US2005288402 |
| OPPOSITION | US4147678 |
| OPPOSITION | US4589539 |
| OPPOSITION | US5837760 |
| OPPOSITION | WO2008076134 |
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.
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Decision to grant a European patent
Search/Exam
Jun 6, 2017
Decision to allow further processing
Search/Exam
May 24, 2017
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Payment of fees and costs
Search/Exam
May 11, 2017
Request for further processing
Search/Exam
May 10, 2017
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Filing of the translations of the claims
Search/Exam
Mar 8, 2017
French translation of claims
Search/Exam
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German translation of the claims
Search/Exam
Mar 8, 2017
Payment of fees and costs
Search/Exam
Nov 18, 2016
CDS Clean up - amended applicant details
Search/Exam
Nov 11, 2016
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Intention to grant (signatures)
Search/Exam
Nov 11, 2016
Text intended for grant
Search/Exam
Nov 8, 2016
Annex to the communication
Search/Exam
Nov 8, 2016
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Letter dealing with oral proceedings
Search/Exam
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Letter dealing with oral proceedings
Search/Exam
Sep 13, 2016
Amended claims with annotations
Search/Exam
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Amended claims with annotations
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Amended claims with annotations
Search/Exam
Sep 13, 2016
Claims
Search/Exam
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Search/Exam
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Search/Exam
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Advice of delivery
Search/Exam
Apr 4, 2016
Advice of delivery
Search/Exam
Apr 1, 2016
Acknowledgement of a document
Search/Exam
Apr 1, 2016
Annex to the communication
Search/Exam
Apr 1, 2016
Preparation for oral proceedings
Search/Exam
Apr 1, 2016
Summons to attend oral proceedings
Search/Exam
Jun 25, 2014
Amended claims with annotations
Search/Exam
Jun 25, 2014
Claims
Search/Exam
Jun 25, 2014
Claims
Search/Exam
Jun 25, 2014
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Annex to the communication
Search/Exam
Feb 18, 2014
Communication from the Examining Division
Search/Exam
Jul 9, 2013
Claims
Search/Exam
Jul 9, 2013
May 21, 2013
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Annex to the communication
Search/Exam
Jan 8, 2013
Communication from the Examining Division
Search/Exam
Jun 7, 2011
Amended claims with annotations
Search/Exam
Jun 7, 2011
Amendments received before examination
Search/Exam
Jun 1, 2011
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(Electronic) Receipt
Search/Exam
Mar 11, 2011
Request for entry into the European phase
Search/Exam
Mar 4, 2011
Dec 22, 2010
Information on entry into European phase
Search/Exam
Feb 18, 2010
Copy of the international search report
Search/Exam
Feb 18, 2010
Published international application - A1
Search/Exam
May 12, 2009
Abstract
PCTISA
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Aug 25, 2008
Abstract
PCTISA
Aug 25, 2008
Claims
PCTISA
Aug 25, 2008
Description
PCTISA
Aug 25, 2008
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PCTISA
Aug 25, 2008