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The patent EP3717315 was granted to Alfred Krcher on Oct 27, 2021. The application was filed on Dec 1, 2017 under application number EP17808079A. 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 |
|---|---|---|---|
| OTTO CHRIST | Jul 27, 2022 | ERNICKE PATENT UND RECHTSANWALTE PARTMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102006017999 |
| DESCRIPTION | DE29814758U |
| DESCRIPTION | JP2010158945 |
| DESCRIPTION | JPH05213163 |
| DESCRIPTION | JPS5954349U |
| DESCRIPTION | WO2009065715 |
| DESCRIPTION | WO2016030218 |
| INTERNATIONAL-SEARCH-REPORT | JPH05213163 |
| INTERNATIONAL-SEARCH-REPORT | JPS5954349U |
| INTERNATIONAL-SEARCH-REPORT | WO2009065715 |
| INTERNATIONAL-SEARCH-REPORT | WO2016030218 |
| OPPOSITION | DE102006017999 |
| OPPOSITION | DE19959491 |
| OPPOSITION | DE29814758U |
| OPPOSITION | DE4334132 |
| OPPOSITION | EP0808753 |
| OPPOSITION | JP2010158945 |
| OPPOSITION | JPH05213163 |
| OPPOSITION | JPS5954349U |
| OPPOSITION | WO2009065715 |
| OPPOSITION | WO2016030218 |
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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Nov 10, 2025
Nov 10, 2025
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(Electronic) Receipt
Appeal
Aug 12, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Jul 16, 2025
Mar 18, 2025
Mar 12, 2025
(Electronic) Receipt
Appeal
Mar 12, 2025
Mar 12, 2025
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Jan 10, 2025
(Electronic) Receipt
Appeal
Jan 10, 2025
Jan 10, 2025
Notice of appeal
Appeal
Nov 12, 2024
Nov 12, 2024
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Means of redress
OPPO
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Authorisation
OPPO
Aug 8, 2022
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Annexes in respect of a client data request
Search/Exam
Jan 18, 2022
Annexes in respect of a client data request
Search/Exam
Jan 18, 2022
Jan 12, 2022
Jan 7, 2022
Annexes in respect of a client data request
Search/Exam
Jan 7, 2022
Nov 9, 2021
Sep 30, 2021
Decision to grant a European patent
Search/Exam
Sep 17, 2021
(Electronic) Receipt
Search/Exam
Sep 17, 2021
English translation of the claims
Search/Exam
Sep 17, 2021
Filing of the translations of the claims
Search/Exam
Sep 17, 2021
French translation of claims
Search/Exam
Sep 17, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Intention to grant (signatures)
Search/Exam
Jun 14, 2021
Text intended for grant (clean copy)
Search/Exam
Jun 14, 2021
May 18, 2021
Examination started
Search/Exam
Dec 29, 2020
(Electronic) Receipt
Search/Exam
Dec 29, 2020
Dec 29, 2020
Amended claims with annotations
Search/Exam
Dec 29, 2020
Amendments received before examination
Search/Exam
Dec 29, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 14, 2020
Communication to designated inventor
Search/Exam
Dec 8, 2020
(Electronic) Receipt
Search/Exam
Dec 8, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 8, 2020
Letter concerning the inventor
Search/Exam
Dec 4, 2020
Nov 24, 2020
Letter which had not been notified
Search/Exam
Sep 9, 2020
Sep 7, 2020
Communication to designated inventor
Search/Exam
Sep 1, 2020
(Electronic) Receipt
Search/Exam
Sep 1, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 1, 2020
Letter concerning the inventor
Search/Exam
Aug 19, 2020
Aug 11, 2020
Letter which had not been notified
Search/Exam
Jul 8, 2020
Jul 6, 2020
Communication to designated inventor
Search/Exam
Jul 6, 2020
Communication to designated inventor
Search/Exam
Jul 6, 2020
Communication to designated inventor
Search/Exam
Jul 6, 2020
Communication to designated inventor
Search/Exam
Jun 17, 2020
May 20, 2020
(Electronic) Receipt
Search/Exam
May 20, 2020
Request for entry into the European phase
Search/Exam
Apr 14, 2020
Information on entry into European phase
Search/Exam
Jun 6, 2019
Copy of the international search report
Search/Exam
Jun 6, 2019
Copy of the international search report
Search/Exam
Jun 6, 2019
Published international application - A1
Search/Exam
Aug 29, 2018
Aug 29, 2018
Aug 6, 2018
ISR: cited documents
PCTISA
Aug 6, 2018
Aug 3, 2018
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Aug 3, 2018
Feb 21, 2018
(Electronic) Receipt
PCTRO
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
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Feb 12, 2018
Jan 12, 2018
Annex
PCTRO
Jan 12, 2018
Annex
PCTRO
Jan 12, 2018
Dec 15, 2017
Dec 12, 2017
Dec 8, 2017
Dec 1, 2017
(Electronic) Receipt
PCTRO
Dec 1, 2017
Abstract
PCTRO
Dec 1, 2017
Claims
PCTRO
Dec 1, 2017
Description
PCTRO
Dec 1, 2017
Dec 1, 2017
Drawings
PCTRO
Dec 1, 2017