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The patent EP2903775 was granted to Schunk Sonosystems on Mar 15, 2017. The application was filed on Apr 3, 2014 under application number EP14715273A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| TELSONIC HOLDING | Dec 8, 2017 | HEPP WENGER RYFFEL | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102005063230 |
| DESCRIPTION | DE19859355 |
| DESCRIPTION | DE3508122 |
| DESCRIPTION | EP1566233 |
| INTERNATIONAL-SEARCH-REPORT | JP2002343831 |
| INTERNATIONAL-SEARCH-REPORT | US6786384 |
| OPPOSITION | DE102005063230 |
| OPPOSITION | DE19859355 |
| OPPOSITION | DE3508122 |
| OPPOSITION | EP1566233 |
| OPPOSITION | JP2002343831 |
| OPPOSITION | US4647336 |
| OPPOSITION | US6786384 |
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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Jun 8, 2021
Refund of fees
Appeal
Jun 4, 2021
Jun 4, 2021
Jun 1, 2021
May 27, 2021
(Electronic) Receipt
Appeal
May 27, 2021
May 27, 2021
Withdrawal of an appeal
Appeal
Apr 8, 2021
Apr 8, 2021
Apr 1, 2021
(Electronic) Receipt
Appeal
Apr 1, 2021
Apr 1, 2021
Jan 28, 2021
Jan 28, 2021
Dec 4, 2020
Jun 22, 2020
Jun 15, 2020
(Electronic) Receipt
Appeal
Jun 15, 2020
Jun 15, 2020
May 27, 2020
May 18, 2020
(Electronic) Receipt
Appeal
May 18, 2020
May 18, 2020
May 18, 2020
Claims
Appeal
May 18, 2020
Description
Appeal
May 18, 2020
May 18, 2020
Reply to appeal
Appeal
Feb 5, 2020
Jan 29, 2020
(Electronic) Receipt
Appeal
Jan 29, 2020
Jan 29, 2020
Jan 16, 2020
Dec 23, 2019
(Electronic) Receipt
Appeal
Dec 23, 2019
Dec 23, 2019
Dec 23, 2019
Dec 23, 2019
Oct 29, 2019
Oct 29, 2019
Oct 16, 2019
(Electronic) Receipt
Appeal
Oct 16, 2019
Oct 16, 2019
Notice of appeal
Appeal
Aug 26, 2019
Aug 26, 2019
Aug 26, 2019
Aug 23, 2019
Aug 19, 2019
Aug 19, 2019
Aug 19, 2019
Aug 19, 2019
Aug 19, 2019
Aug 19, 2019
Aug 19, 2019
Means of redress
OPPO
Aug 19, 2019
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Jun 18, 2019
Apr 25, 2019
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Apr 17, 2019
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Apr 15, 2019
Apr 15, 2019
Apr 15, 2019
Mar 29, 2019
Mar 28, 2019
Mar 26, 2019
Feb 12, 2019
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Feb 5, 2019
Feb 5, 2019
Sep 6, 2018
Sep 3, 2018
Aug 31, 2018
Aug 29, 2018
Aug 27, 2018
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May 29, 2018
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May 16, 2018
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Dec 13, 2017
Dec 8, 2017
Dec 8, 2017
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Dec 8, 2017
Mar 16, 2017
Feb 16, 2017
Decision to grant a European patent
Search/Exam
Feb 3, 2017
English translation of the claims
Search/Exam
Feb 3, 2017
Filing of the translations of the claims
Search/Exam
Feb 3, 2017
French translation of claims
Search/Exam
Feb 1, 2017
English translation of the claims
Search/Exam
Feb 1, 2017
Filing of the translations of the claims
Search/Exam
Feb 1, 2017
French translation of claims
Search/Exam
Feb 1, 2017
Payment of fees and costs
Search/Exam
Feb 1, 2017
Payment of fees and costs
Search/Exam
Sep 27, 2016
Sep 27, 2016
Sep 27, 2016
Intention to grant (signatures)
Search/Exam
Sep 27, 2016
Text intended for grant (clean copy)
Search/Exam
Sep 27, 2016
Sep 6, 2016
Examination started
Search/Exam
Nov 20, 2015
Communication to designated inventor
Search/Exam
Nov 20, 2015
Communication to designated inventor
Search/Exam
Nov 20, 2015
Communication to designated inventor
Search/Exam
Nov 20, 2015
Communication to designated inventor
Search/Exam
Nov 20, 2015
Communication to designated inventor
Search/Exam
Nov 3, 2015
Nov 3, 2015
Oct 24, 2015
Oct 24, 2015
Amended claims with annotations
Search/Exam
Oct 24, 2015
Amendments received before examination
Search/Exam
Jul 15, 2015
May 20, 2015
May 7, 2015
Matter concerning the application
Search/Exam
Apr 28, 2015
Information regarding early processing
Search/Exam
Mar 6, 2015
(Electronic) Receipt
Search/Exam
Mar 6, 2015
Annex
Search/Exam
Mar 6, 2015
Annex
Search/Exam
Mar 6, 2015
Priority search results
Search/Exam
Mar 6, 2015
Request for entry into the European phase
Search/Exam
Nov 12, 2014
Oct 23, 2014
Copy of the international search report
Search/Exam
Oct 23, 2014
Copy of the international search report
Search/Exam
Oct 23, 2014
Published international application - A1
Search/Exam
Aug 29, 2014
Aug 29, 2014
Aug 29, 2014
Apr 3, 2014
(Electronic) Receipt
PCTRO
Apr 3, 2014
Abstract
PCTRO
Apr 3, 2014
Claims
PCTRO
Apr 3, 2014
Description
PCTRO
Apr 3, 2014
Drawings
PCTRO