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The patent EP2846249 was granted to Liebherr Verzahntechnik on Nov 23, 2022. The application was filed on Aug 11, 2014 under application number EP14180541A. 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 |
|---|---|---|---|
| GLEASON PFAUTER MASCHINENFABRIK | Feb 8, 2018 | LEINWEBER & ZIMMERMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE102009017030 |
| OPPOSITION | DE102010051639 |
| OPPOSITION | US2009222911 |
| OPPOSITION | US2010235789 |
| OPPOSITION | US2013173031 |
| OPPOSITION | US2013227473 |
| SEARCH | DE102009017030 |
| SEARCH | DE102010051639 |
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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Oct 27, 2022
Oct 27, 2022
Oct 21, 2022
Oct 17, 2022
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Aug 10, 2022
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Advice of delivery
Appeal
Aug 2, 2022
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May 23, 2022
Advice of delivery
Appeal
May 20, 2022
May 19, 2022
Advice of delivery
Appeal
May 19, 2022
May 19, 2022
May 18, 2022
May 17, 2022
(Electronic) Receipt
Appeal
May 17, 2022
May 17, 2022
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Advice of delivery
Search/Exam
May 16, 2022
Apr 29, 2022
Apr 29, 2022
Apr 8, 2022
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Apr 4, 2022
General enquiry
Appeal
Jul 12, 2021
Advice of delivery
Appeal
Jul 8, 2021
Advice of delivery
Appeal
Jul 8, 2021
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Jun 24, 2021
Jul 9, 2020
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(Electronic) Receipt
Appeal
Jul 6, 2020
Jul 6, 2020
Jul 6, 2020
Reply to appeal
Appeal
Jun 8, 2020
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Jun 3, 2020
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Feb 24, 2020
Feb 24, 2020
Feb 19, 2020
(Electronic) Receipt
Appeal
Feb 19, 2020
(Electronic) Receipt
Appeal
Feb 19, 2020
(Electronic) Receipt
Appeal
Feb 19, 2020
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Claims
Appeal
Feb 19, 2020
Claims
Appeal
Feb 19, 2020
Claims
Appeal
Feb 19, 2020
Claims
Appeal
Feb 19, 2020
Claims
Appeal
Feb 19, 2020
Claims
Appeal
Feb 19, 2020
Claims
Appeal
Feb 19, 2020
Claims
Appeal
Feb 19, 2020
Claims
Appeal
Feb 19, 2020
Claims
Appeal
Feb 19, 2020
Claims
Appeal
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Dec 20, 2019
Dec 12, 2019
Dec 5, 2019
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Nov 28, 2019
(Electronic) Receipt
Appeal
Nov 28, 2019
Nov 28, 2019
Nov 28, 2019
Notice of appeal
Appeal
Oct 14, 2019
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OPPO
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Claims
OPPO
Jul 10, 2019
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OPPO
Jul 10, 2019
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OPPO
Jul 10, 2019
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OPPO
Jul 10, 2019
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OPPO
Jul 10, 2019
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OPPO
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OPPO
Jul 10, 2019
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OPPO
Jul 10, 2019
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OPPO
Jul 10, 2019
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OPPO
Jul 10, 2019
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Jul 10, 2019
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May 11, 2017
Apr 13, 2017
Decision to grant a European patent
Search/Exam
Mar 29, 2017
(Electronic) Receipt
Search/Exam
Mar 29, 2017
English translation of the claims
Search/Exam
Mar 29, 2017
Filing of the translations of the claims
Search/Exam
Mar 29, 2017
French translation of claims
Search/Exam
Dec 12, 2016
Dec 12, 2016
Dec 12, 2016
Intention to grant (signatures)
Search/Exam
Dec 12, 2016
Text intended for grant (clean copy)
Search/Exam
Dec 12, 2016
Sep 1, 2016
Amended claims with annotations
Search/Exam
Sep 1, 2016
Claims
Search/Exam
Sep 1, 2016
Description
Search/Exam
Sep 1, 2016
Aug 2, 2016
Annex to the communication
Search/Exam
Aug 2, 2016
Communication from the Examining Division
Search/Exam
Jul 18, 2016
Amended claims with annotations
Search/Exam
Jul 18, 2016
Claims
Search/Exam
Jul 18, 2016
Mar 18, 2016
Annex to the communication
Search/Exam
Mar 18, 2016
Communication from the Examining Division
Search/Exam
Mar 15, 2016
Examination started
Search/Exam
Feb 15, 2016
Feb 15, 2016
Amended claims with annotations
Search/Exam
Feb 15, 2016
Feb 15, 2016
Amendments received before examination
Search/Exam
Feb 15, 2016
Payment of fees and costs
Search/Exam
Jan 26, 2016
Jan 15, 2016
Submission concerning representation
Search/Exam
Aug 24, 2015
Jul 20, 2015
Jul 20, 2015
European search opinion
Search/Exam
Jul 20, 2015
European search report
Search/Exam
Feb 11, 2015
Notification of forthcoming publication
Search/Exam
Oct 6, 2014
Communication to designated inventor
Search/Exam
Oct 6, 2014
Communication to designated inventor
Search/Exam
Oct 6, 2014
Communication to designated inventor
Search/Exam
Aug 12, 2014
Letter concerning the priority
Search/Exam
Aug 12, 2014
Priority document
Search/Exam
Aug 11, 2014
Abstract
Search/Exam
Aug 11, 2014
Aug 11, 2014
Claims
Search/Exam
Aug 11, 2014
Description
Search/Exam
Aug 11, 2014
Designation of inventor
Search/Exam
Aug 11, 2014
Designation of inventor
Search/Exam
Aug 11, 2014
Designation of inventor
Search/Exam
Aug 11, 2014
Drawings
Search/Exam
Aug 11, 2014
Priority search results
Search/Exam
Aug 11, 2014
Request for grant of a European patent
Search/Exam