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The patent EP1945937 was granted to Husqvarna on Apr 25, 2018. The application was filed on Jul 1, 2005 under application number EP05756671A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| ANDREAS STIHL | Jan 25, 2019 | WASMUTH | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1496249 |
| INTERNATIONAL-SEARCH-REPORT | US4553517 |
| INTERNATIONAL-SEARCH-REPORT | US4610231 |
| INTERNATIONAL-SEARCH-REPORT | US5050553 |
| OPPOSITION | DE1523180 |
| OPPOSITION | DE19529799 |
| OPPOSITION | DE19614464 |
| OPPOSITION | DE19645466 |
| OPPOSITION | DE3319025 |
| OPPOSITION | DE3413088 |
| OPPOSITION | DE3914026 |
| OPPOSITION | DE3925224 |
| OPPOSITION | EP0173766 |
| OPPOSITION | EP1174610 |
| OPPOSITION | EP1496249 |
| OPPOSITION | JPH01240772 |
| OPPOSITION | US2005100405 |
| OPPOSITION | US2983868 |
| OPPOSITION | US4491105 |
| OPPOSITION | US4553517 |
| OPPOSITION | US4610231 |
| OPPOSITION | US5050553 |
| OPPOSITION | US6474300 |
| SEARCH | DE3914026 |
| SEARCH | EP0173766 |
| SEARCH | EP1174610 |
| SEARCH | JPH01240772 |
| SEARCH | US4491105 |
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 10, 2025
Refund of fees
Appeal
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
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Oct 2, 2025
Sep 30, 2025
(Electronic) Receipt
Appeal
Sep 30, 2025
Sep 30, 2025
Withdrawal of an appeal
Appeal
Sep 4, 2025
Sep 4, 2025
Jul 25, 2025
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(Electronic) Receipt
Appeal
Feb 7, 2025
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(Electronic) Receipt
Appeal
Dec 13, 2024
Dec 13, 2024
Claims
Appeal
Dec 13, 2024
Dec 13, 2024
Jul 10, 2024
Jul 5, 2024
(Electronic) Receipt
Appeal
Jul 5, 2024
Jul 5, 2024
Reply to appeal
Appeal
Mar 5, 2024
Feb 29, 2024
(Electronic) Receipt
Appeal
Feb 29, 2024
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Feb 29, 2024
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(Electronic) Receipt
Appeal
Jan 5, 2024
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Notice of appeal
Appeal
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Appeal
May 6, 2020
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Appeal
Jan 7, 2020
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(Electronic) Receipt
Appeal
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Claims
Appeal
Dec 19, 2019
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Appeal
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Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Nov 22, 2019
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Notice of appeal
Appeal
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OPPO
Sep 30, 2019
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OPPO
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May 7, 2018
Mar 29, 2018
Decision to grant a European patent
Search/Exam
Mar 14, 2018
(Electronic) Receipt
Search/Exam
Mar 14, 2018
French translation of claims
Search/Exam
Mar 14, 2018
German translation of the claims
Search/Exam
Mar 14, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 15, 2017
Nov 15, 2017
Nov 15, 2017
Intention to grant (signatures)
Search/Exam
Nov 15, 2017
Text intended for grant (clean copy)
Search/Exam
Nov 15, 2017
Oct 12, 2017
Examination started
Search/Exam
Jul 14, 2017
Jun 5, 2015
(Electronic) Receipt
Search/Exam
Jun 5, 2015
Jun 5, 2015
Amended claims with annotations
Search/Exam
Jun 5, 2015
Amendments received before examination
Search/Exam
Jun 5, 2015
Letter accompanying subsequently filed items
Search/Exam
Apr 24, 2015
Apr 7, 2015
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European search opinion
Search/Exam
Apr 7, 2015
Supplementary European search report
Search/Exam
Mar 24, 2015
Search started
Search/Exam
Jul 1, 2014
Notice on debiting of fees
Search/Exam
Jun 25, 2008
Apr 22, 2008
Letter concerning fees and payments
Search/Exam
Apr 22, 2008
Payment of fees and costs
Search/Exam
Feb 22, 2008
Feb 15, 2008
Feb 6, 2008
Refund of fees
Search/Exam
Jan 21, 2008
Dec 17, 2007
Annex
Search/Exam
Dec 17, 2007
Annex
Search/Exam
Dec 17, 2007
Designation of inventor
Search/Exam
Dec 17, 2007
Request for entry into the European phase
Search/Exam
Nov 16, 2007
Information on entry into European phase
Search/Exam
Jan 11, 2007
Copy of the international search report
Search/Exam
Jan 11, 2007
Published international application - A1
Search/Exam