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The patent EP3271539 was granted to Kiekert on Dec 20, 2023. The application was filed on Mar 15, 2016 under application number EP16719758A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| BROSE SCHLIESSSYSTEME | Jun 16, 2021 | LKGLOBAL LORENZ & KOPF | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | DE102011107215 |
| OPPOSITION | DE102008009506 |
| OPPOSITION | DE102009006948 |
| OPPOSITION | DE102010044931 |
| OPPOSITION | DE102011015669 |
| OPPOSITION | DE102011055506 |
| OPPOSITION | DE102011107215 |
| OPPOSITION | DE19537045 |
| OPPOSITION | DE19835994 |
| OPPOSITION | DE19844265 |
| OPPOSITION | DE202005018026U |
| OPPOSITION | DE29812121U |
| OPPOSITION | EP2733292 |
| OPPOSITION | JP2005163357 |
| OPPOSITION | US2004055221 |
| OPPOSITION | US2009051192 |
| OPPOSITION | US2014137474 |
| OPPOSITION | US2014150581 |
| OPPOSITION | US3202414 |
| OPPOSITION | US4183177 |
| OPPOSITION | US5369911 |
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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Search/Exam
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Appeal
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Appeal
May 23, 2023
Refund of fees
Search/Exam
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(Electronic) Receipt
Appeal
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Appeal
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Decision to grant a European patent
Search/Exam
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English translation of the claims
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Filing of the translations of the claims
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French translation of claims
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English translation of the claims
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Filing of the translations of the claims
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French translation of claims
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Examination started
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Aug 22, 2018
(Electronic) Receipt
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Aug 22, 2018
Letter accompanying subsequently filed items
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Aug 22, 2018
Priority search results
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Amended claims with annotations
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Amended description with annotations
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Amendments received before examination
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Amended claims with annotations
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Amended description with annotations
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Communication to designated inventor
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(Electronic) Receipt
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Aug 31, 2017
Request for entry into the European phase
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Jul 26, 2017
Information on entry into European phase
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Copy of the international search report
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Copy of the international search report
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Sep 22, 2016
Published international application - A1
Search/Exam
Jul 6, 2016
ISR: cited documents
PCTISA
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Abstract
PCTISA
May 2, 2016
Claims
PCTISA
May 2, 2016
Description
PCTISA
May 2, 2016
Drawings
PCTISA
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