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The patent EP3117896 was granted to DR Herfeld on May 13, 2020. The application was filed on Jun 20, 2016 under application number EP16175173A. 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 |
|---|---|---|---|
| ZEPPELIN SYSTEMS | Feb 12, 2021 | RIEBLING | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE202009001937U |
| DESCRIPTION | DE202014101787U |
| DESCRIPTION | EP0225495 |
| OPPOSITION | DE102010016595 |
| OPPOSITION | DE10333481 |
| OPPOSITION | DE1814384 |
| OPPOSITION | DE19639740 |
| OPPOSITION | DE202013009167U |
| OPPOSITION | DE20316552U |
| OPPOSITION | DE2250432 |
| OPPOSITION | DE4320246 |
| OPPOSITION | DE4434708 |
| OPPOSITION | EP0871020 |
| OPPOSITION | EP0892255 |
| OPPOSITION | EP1516831 |
| OPPOSITION | GB2240965 |
| OPPOSITION | GB2363787 |
| OPPOSITION | US1570795 |
| OPPOSITION | US2012175012 |
| OPPOSITION | US5215228 |
| OPPOSITION | WO02075260 |
| SEARCH | DE102010016595 |
| SEARCH | DE1814384 |
| SEARCH | DE2250432 |
| SEARCH | DE4320246 |
| SEARCH | EP0892255 |
| SEARCH | GB2240965 |
| SEARCH | GB2363787 |
| SEARCH | US2012175012 |
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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Means of redress
OPPO
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Dec 20, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 20, 2021
Dec 3, 2021
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Sep 29, 2021
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May 26, 2020
Apr 17, 2020
Decision to grant a European patent
Search/Exam
Mar 31, 2020
(Electronic) Receipt
Search/Exam
Mar 31, 2020
English translation of the claims
Search/Exam
Mar 31, 2020
Filing of the translations of the claims
Search/Exam
Mar 31, 2020
French translation of claims
Search/Exam
Mar 31, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 24, 2020
Jan 24, 2020
Jan 24, 2020
Intention to grant (signatures)
Search/Exam
Jan 24, 2020
Text intended for grant (clean copy)
Search/Exam
Jan 24, 2020
Dec 20, 2019
Examination started
Search/Exam
Jun 19, 2019
Jun 6, 2019
(Electronic) Receipt
Search/Exam
Jun 6, 2019
Enquiry as to the processing of the file
Search/Exam
Jun 6, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 18, 2017
(Electronic) Receipt
Search/Exam
Oct 18, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 18, 2017
Oct 13, 2017
Sep 28, 2017
(Electronic) Receipt
Search/Exam
Sep 28, 2017
Sep 28, 2017
Amended claims with annotations
Search/Exam
Sep 28, 2017
Sep 28, 2017
Amended description with annotations
Search/Exam
Sep 28, 2017
Amendments received before examination
Search/Exam
Sep 28, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 28, 2017
Written request for examination
Search/Exam
Apr 3, 2017
Feb 27, 2017
Feb 27, 2017
European search opinion
Search/Exam
Feb 27, 2017
European search report
Search/Exam
Feb 27, 2017
Information on Search Strategy
Search/Exam
Feb 1, 2017
(Electronic) Receipt
Search/Exam
Feb 1, 2017
Letter accompanying subsequently filed items
Search/Exam
Feb 1, 2017
Letter concerning search matters
Search/Exam
Dec 21, 2016
Notification of forthcoming publication
Search/Exam
Nov 28, 2016
Nov 28, 2016
Information on Search Strategy
Search/Exam
Nov 28, 2016
Partial European search report
Search/Exam
Nov 17, 2016
Search started
Search/Exam
Aug 31, 2016
Communication to designated inventor
Search/Exam
Aug 31, 2016
Communication to designated inventor
Search/Exam
Aug 19, 2016
(Electronic) Receipt
Search/Exam
Aug 19, 2016
Designation of inventor
Search/Exam
Aug 19, 2016
Letter accompanying subsequently filed items
Search/Exam
Aug 19, 2016
Letter concerning the inventor
Search/Exam
Jul 28, 2016
Deficiency in designation of inventor
Search/Exam
Jun 22, 2016
Letter concerning the priority
Search/Exam
Jun 22, 2016
Priority document
Search/Exam
Jun 20, 2016
Abstract
Search/Exam
Jun 20, 2016
Jun 20, 2016
Claims
Search/Exam
Jun 20, 2016
Description
Search/Exam
Jun 20, 2016
Drawings
Search/Exam
Jun 20, 2016
Request for grant of a European patent
Search/Exam