The weekly litigation news digest is live. Subscribe now
The patent EP3978304 was granted to Husqvarna on Apr 24, 2024. The application was filed on Jan 16, 2014 under application number EP21204391A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
Latest UPC cases involving this patent.
| Case Number | Filing Date | Plaintiff | Proceeding Type |
|---|---|---|---|
| UPC_CFI_689/2025 | Aug 9, 2025 | Positec Germany | Counter Claim For Revocation |
| UPC_CFI_351/2025 | Apr 17, 2025 | Husqvarna, Husqvarna AB | Infringement |

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 |
|---|---|---|---|
| POSITEC GERMANY | Aug 11, 2025 | MISHCON DE REYA | INTERVENTION ADMISSIBLE |
| KILBURN & STRODE | Jan 24, 2025 | KORENBERG | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CN202888917U |
| OPPOSITION | DE102008038199 |
| OPPOSITION | EP2014505 |
| OPPOSITION | EP2380767 |
| OPPOSITION | EP2425701 |
| OPPOSITION | US2010039067 |
| OPPOSITION | US2011130875 |
| OPPOSITION | US2014000231 |
| OPPOSITION | US6525509 |
| OPPOSITION | WO03015220 |
| OPPOSITION | WO2009070334 |
| OPPOSITION | WO2011079215 |
| OPPOSITION | WO2013055204 |
| OPPOSITION | WO2013100833 |
| SEARCH | EP2516203 |
| SEARCH | US2006010844 |
| SEARCH | US2009183478 |
| SEARCH | WO2013055204 |
| SEARCH | WO2013100833 |
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
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Means of redress
OPPO
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 7, 2025
Oct 7, 2025
Oct 7, 2025
Oct 6, 2025
Oct 6, 2025
Oct 6, 2025
Oct 6, 2025
Oct 6, 2025
Oct 3, 2025
Oct 3, 2025
Oct 3, 2025
Oct 2, 2025
Oct 2, 2025
Oct 2, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 15, 2025
Sep 15, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Aug 22, 2025
Aug 22, 2025
Aug 22, 2025
Aug 22, 2025
Aug 19, 2025
Aug 19, 2025
Aug 18, 2025
Aug 18, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Jul 30, 2025
Jul 29, 2025
Jul 29, 2025
Jul 29, 2025
Jul 29, 2025
Jul 29, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jun 18, 2025
Jun 11, 2025
Jun 11, 2025
Jun 11, 2025
May 8, 2025
May 8, 2025
Feb 21, 2025
Feb 21, 2025
Feb 21, 2025
Feb 18, 2025
Feb 18, 2025
Feb 18, 2025
Feb 11, 2025
Feb 11, 2025
Feb 7, 2025
Jan 30, 2025
Jan 30, 2025
Jan 30, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
May 8, 2024
Mar 28, 2024
Decision to grant a European patent
Search/Exam
Mar 18, 2024
(Electronic) Receipt
Search/Exam
Mar 18, 2024
Filing of the translations of the claims
Search/Exam
Mar 18, 2024
French translation of claims
Search/Exam
Mar 18, 2024
German translation of the claims
Search/Exam
Feb 29, 2024
Feb 23, 2024
(Electronic) Receipt
Search/Exam
Feb 23, 2024
Feb 23, 2024
Feb 23, 2024
Feb 23, 2024
Intention to grant (signatures)
Search/Exam
Feb 23, 2024
Request for unitary effect
Search/Exam
Feb 23, 2024
Text intended for grant (clean copy)
Search/Exam
Feb 23, 2024
Feb 23, 2024
Translation of the patent
Search/Exam
Jan 25, 2024
(Electronic) Receipt
Search/Exam
Jan 25, 2024
Amended claims with annotations
Search/Exam
Jan 25, 2024
Claims
Search/Exam
Jan 25, 2024
Letter accompanying subsequently filed items
Search/Exam
Jan 25, 2024
Jan 24, 2024
Jan 24, 2024
Jan 24, 2024
Jan 24, 2024
Text intended for grant (clean copy)
Search/Exam
Jan 24, 2024
Aug 8, 2023
(Electronic) Receipt
Search/Exam
Aug 8, 2023
Amended claims with annotations
Search/Exam
Aug 8, 2023
Amended description with annotations
Search/Exam
Aug 8, 2023
Claims
Search/Exam
Aug 8, 2023
Description
Search/Exam
Aug 8, 2023
Letter accompanying subsequently filed items
Search/Exam
Aug 8, 2023
Jul 31, 2023
Annex to the communication
Search/Exam
Jul 31, 2023
Communication from the Examining Division
Search/Exam
Jul 24, 2023
Examination started
Search/Exam
May 29, 2023
(Electronic) Receipt
Search/Exam
Jul 7, 2022
(Electronic) Receipt
Search/Exam
Jul 7, 2022
Jul 7, 2022
Amended claims with annotations
Search/Exam
Jul 7, 2022
Amendments received before examination
Search/Exam
Jul 7, 2022
Letter accompanying subsequently filed items
Search/Exam
Apr 11, 2022
Mar 14, 2022
Refund of fees
Search/Exam
Mar 10, 2022
Notification of forthcoming publication
Search/Exam
Mar 9, 2022
Mar 9, 2022
European search opinion
Search/Exam
Mar 9, 2022
European search report
Search/Exam
Mar 9, 2022
Information on Search Strategy
Search/Exam
Feb 10, 2022
Search started
Search/Exam
Oct 25, 2021
Abstract
Search/Exam
Oct 25, 2021
Oct 25, 2021
Claims
Search/Exam
Oct 25, 2021
Description
Search/Exam
Oct 25, 2021
Designation of inventor
Search/Exam
Oct 25, 2021
Drawings
Search/Exam
Oct 25, 2021
Request for grant of a European patent
Search/Exam