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The patent EP3528077 was granted to Pilz on Nov 1, 2023. The application was originally filed on Feb 16, 2018 under application number EP18157244A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US6695207 |
| OPPOSITION | US2004148039 |
| OPPOSITION | US2007205861 |
| OPPOSITION | US2015049911 |
| OPPOSITION | US2016062345 |
| OPPOSITION | US2016271800 |
| OPPOSITION | US2016379473 |
| OPPOSITION | US4518958 |
| OPPOSITION | US6695207 |
| OPPOSITION | WO2017223420 |
| SEARCH | US2015049911 |
| SEARCH | US2016062345 |
| SEARCH | US2016271800 |
| SEARCH | US2016379473 |
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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Oct 6, 2023
Oct 6, 2023
Sep 29, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Jun 14, 2023
Jun 14, 2023
Jun 13, 2023
Refund of fees
Appeal
Jun 9, 2023
Jun 9, 2023
Jun 7, 2023
Jun 5, 2023
Jun 2, 2023
(Electronic) Receipt
Appeal
Jun 2, 2023
Jun 2, 2023
Withdrawal of an appeal
Appeal
May 25, 2023
May 25, 2023
May 17, 2023
(Electronic) Receipt
Appeal
May 17, 2023
Notice of appeal
Appeal
Mar 10, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Means of redress
OPPO
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
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Mar 7, 2023
Mar 7, 2023
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Jan 3, 2022
Jan 3, 2022
Apr 20, 2021
Mar 12, 2021
Decision to grant a European patent
Search/Exam
Mar 2, 2021
(Electronic) Receipt
Search/Exam
Mar 2, 2021
French translation of claims
Search/Exam
Mar 2, 2021
German translation of the claims
Search/Exam
Mar 2, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 23, 2020
Oct 23, 2020
Oct 23, 2020
Intention to grant (signatures)
Search/Exam
Oct 23, 2020
Text intended for grant (clean copy)
Search/Exam
Oct 23, 2020
Aug 28, 2020
(Electronic) Receipt
Search/Exam
Aug 28, 2020
Amended claims with annotations
Search/Exam
Aug 28, 2020
Amended description with annotations
Search/Exam
Aug 28, 2020
Claims
Search/Exam
Aug 28, 2020
Description
Search/Exam
Aug 28, 2020
Letter accompanying subsequently filed items
Search/Exam
Aug 28, 2020
Apr 20, 2020
Annex to the communication
Search/Exam
Apr 20, 2020
Communication from the Examining Division
Search/Exam
Apr 9, 2020
Examination started
Search/Exam
Feb 20, 2020
(Electronic) Receipt
Search/Exam
Feb 20, 2020
Letter accompanying subsequently filed items
Search/Exam
Aug 26, 2019
Jul 24, 2019
Notification of forthcoming publication
Search/Exam
Jun 17, 2019
Communication to designated inventor
Search/Exam
Jun 17, 2019
Communication to designated inventor
Search/Exam
Jun 7, 2019
(Electronic) Receipt
Search/Exam
Jun 7, 2019
Designation of inventor
Search/Exam
Jun 7, 2019
Designation of inventor
Search/Exam
Jun 7, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 22, 2019
(Electronic) Receipt
Search/Exam
Aug 31, 2018
Aug 31, 2018
European search opinion
Search/Exam
Aug 31, 2018
European search report
Search/Exam
Aug 31, 2018
Information on Search Strategy
Search/Exam
Aug 17, 2018
Search started
Search/Exam
Mar 14, 2018
Deficiency in designation of inventor
Search/Exam
Feb 16, 2018
Abstract
Search/Exam
Feb 16, 2018
Feb 16, 2018
Claims
Search/Exam
Feb 16, 2018
Description
Search/Exam
Feb 16, 2018
Drawings
Search/Exam
Feb 16, 2018
Request for grant of a European patent
Search/Exam