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The patent EP3299243 was granted to Leitner on Apr 27, 2022. The application was filed on Sep 21, 2017 under application number EP17192487A. 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 |
|---|---|---|---|
| DOPPELMAYR SEILBAHNEN | Feb 7, 2020 | PATENTANWALTE PINTER & WEISS | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE1913649U |
| OPPOSITION | DE2712927 |
| OPPOSITION | DE2844623 |
| OPPOSITION | DE2844624 |
| OPPOSITION | DE3003996 |
| OPPOSITION | DE3043946 |
| OPPOSITION | DE3149274 |
| OPPOSITION | DE473571 |
| OPPOSITION | EP1034996 |
| OPPOSITION | EP1640235 |
| OPPOSITION | EP1752352 |
| OPPOSITION | EP1767425 |
| OPPOSITION | FR2546836 |
| OPPOSITION | JP2003072538 |
| OPPOSITION | JP2013095164 |
| OPPOSITION | JPH0287669U |
| OPPOSITION | JPS49149448U |
| OPPOSITION | US2006218731 |
| OPPOSITION | US3964118 |
| OPPOSITION | US4741086 |
| OPPOSITION | US6360393 |
| OPPOSITION | US6513418 |
| SEARCH | FR2752803 |
| SEARCH | US270508 |
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
Apr 12, 2019
(Electronic) Receipt
Search/Exam
Apr 12, 2019
French translation of claims
Search/Exam
Apr 12, 2019
German translation of the claims
Search/Exam
Apr 12, 2019
Letter accompanying subsequently filed items
Search/Exam
Dec 13, 2018
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Intention to grant (signatures)
Search/Exam
Dec 13, 2018
Text intended for grant (clean copy)
Search/Exam
Dec 13, 2018
Oct 12, 2018
Examination started
Search/Exam
Sep 5, 2018
(Electronic) Receipt
Search/Exam
Sep 5, 2018
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Amended claims with annotations
Search/Exam
Sep 5, 2018
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Amended description with annotations
Search/Exam
Sep 5, 2018
Amendments received before examination
Search/Exam
Sep 5, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 4, 2018
Feb 28, 2018
Notification of forthcoming publication
Search/Exam
Jan 30, 2018
Annexes in respect of a client data request
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Jan 30, 2018
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Refund of fees
Search/Exam
Dec 12, 2017
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European search opinion
Search/Exam
Dec 12, 2017
European search report
Search/Exam
Dec 12, 2017
Information on Search Strategy
Search/Exam
Dec 11, 2017
Letter concerning the priority
Search/Exam
Dec 11, 2017
Priority document
Search/Exam
Nov 24, 2017
Search started
Search/Exam
Nov 14, 2017
Communication to designated inventor
Search/Exam
Nov 14, 2017
Communication to designated inventor
Search/Exam
Sep 21, 2017
Abstract
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Sep 21, 2017
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Claims
Search/Exam
Sep 21, 2017
Description
Search/Exam
Sep 21, 2017
Designation of inventor
Search/Exam
Sep 21, 2017
Drawings
Search/Exam
Sep 21, 2017
Request for grant of a European patent
Search/Exam
Sep 21, 2017