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The patent EP3353349 was granted to Ammann Schweiz on Jun 16, 2021. The application was filed on Sep 13, 2016 under application number EP16767140A. 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 |
|---|---|---|---|
| JOSEPH VOGELE | Mar 15, 2022 | GRUNECKER PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE102010048151 |
| INTERNATIONAL-SEARCH-REPORT | DE102013008032 |
| INTERNATIONAL-SEARCH-REPORT | DE20305577U |
| INTERNATIONAL-SEARCH-REPORT | EP2818675 |
| OPPOSITION | DE102004003356 |
| OPPOSITION | DE102009031412 |
| OPPOSITION | DE102010048151 |
| OPPOSITION | DE102013008032 |
| OPPOSITION | DE19912248 |
| OPPOSITION | DE20305577U |
| OPPOSITION | DE3911401 |
| OPPOSITION | EP0489969 |
| OPPOSITION | EP2256248 |
| OPPOSITION | EP2333158 |
| OPPOSITION | EP2372022 |
| OPPOSITION | EP2818675 |
| OPPOSITION | US8636442 |
| OPPOSITION | WO2014124545 |
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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Dec 16, 2025
Dec 16, 2025
Dec 16, 2025
Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Nov 18, 2025
Nov 17, 2025
(Electronic) Receipt
Appeal
Nov 17, 2025
Nov 17, 2025
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Nov 5, 2025
(Electronic) Receipt
Appeal
Nov 5, 2025
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Nov 3, 2025
(Electronic) Receipt
Appeal
Nov 3, 2025
Oct 28, 2025
(Electronic) Receipt
Appeal
Oct 28, 2025
Oct 28, 2025
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Oct 13, 2025
(Electronic) Receipt
Appeal
Oct 13, 2025
Oct 13, 2025
Jun 6, 2025
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Feb 19, 2025
Feb 17, 2025
Feb 10, 2025
(Electronic) Receipt
Appeal
Feb 10, 2025
Feb 10, 2025
Jan 30, 2025
(Electronic) Receipt
Appeal
Jan 30, 2025
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(Electronic) Receipt
Appeal
Jan 29, 2025
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(Electronic) Receipt
Appeal
Dec 2, 2024
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Reply to appeal
Appeal
Jul 31, 2024
Jul 25, 2024
(Electronic) Receipt
Appeal
Jul 25, 2024
Jul 25, 2024
May 27, 2024
May 22, 2024
(Electronic) Receipt
Appeal
May 22, 2024
May 22, 2024
Notice of appeal
Appeal
Mar 25, 2024
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Means of redress
OPPO
Mar 25, 2024
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Jun 29, 2021
May 20, 2021
Decision to grant a European patent
Search/Exam
May 4, 2021
(Electronic) Receipt
Search/Exam
May 4, 2021
English translation of the claims
Search/Exam
May 4, 2021
Filing of the translations of the claims
Search/Exam
May 4, 2021
French translation of claims
Search/Exam
May 4, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 14, 2021
Jan 14, 2021
Jan 14, 2021
Intention to grant (signatures)
Search/Exam
Jan 14, 2021
Text intended for grant (clean copy)
Search/Exam
Jan 14, 2021
Dec 1, 2020
Examination started
Search/Exam
Jun 19, 2020
Jun 3, 2020
(Electronic) Receipt
Search/Exam
Jun 3, 2020
Enquiry as to the processing of the file
Search/Exam
Jun 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 27, 2019
Jun 27, 2019
Jun 21, 2019
(Electronic) Receipt
Search/Exam
Jun 21, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 21, 2019
Oct 18, 2018
(Electronic) Receipt
Search/Exam
Oct 18, 2018
Oct 18, 2018
Amended description with annotations
Search/Exam
Oct 18, 2018
Amendments received before examination
Search/Exam
Oct 18, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 3, 2018
(Electronic) Receipt
Search/Exam
Aug 3, 2018
Letter concerning the inventor
Search/Exam
Jul 4, 2018
Jun 26, 2018
Submission concerning representation
Search/Exam
Jun 7, 2018
May 30, 2018
Letter which had not been notified
Search/Exam
May 11, 2018
May 11, 2018
May 9, 2018
May 7, 2018
May 3, 2018
Communication to designated inventor
Search/Exam
May 3, 2018
Communication to designated inventor
Search/Exam
Apr 20, 2018
(Electronic) Receipt
Search/Exam
Apr 20, 2018
Annex
Search/Exam
Apr 20, 2018
Annex
Search/Exam
Apr 20, 2018
Apr 20, 2018
Priority search results
Search/Exam
Apr 20, 2018
Request for entry into the European phase
Search/Exam
Apr 9, 2018
Feb 21, 2018
Feb 21, 2018
Notification of the recording of a change
Search/Exam
Feb 2, 2018
Information on entry into European phase
Search/Exam
Apr 18, 2017
Mar 30, 2017
Copy of the international search report
Search/Exam
Mar 30, 2017
Copy of the international search report
Search/Exam
Mar 30, 2017
Published international application - A1
Search/Exam
Nov 15, 2016
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Sep 23, 2016
Sep 13, 2016
Abstract
PCTRO
Sep 13, 2016
Claims
PCTRO
Sep 13, 2016
Description
PCTRO
Sep 13, 2016
Sep 13, 2016
Drawings
PCTRO
Sep 13, 2016
Sep 13, 2016