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The patent EP3728993 was granted to Renishaw on Oct 26, 2022. The application was filed on Dec 12, 2018 under application number EP18822447A. 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 |
|---|---|---|---|
| MARPOSS | Jul 24, 2023 | STUDIO TORTA | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US5339249 |
| INTERNATIONAL-SEARCH-REPORT | US6304999 |
| INTERNATIONAL-SEARCH-REPORT | US6571145 |
| OPPOSITION | DE1602895 |
| OPPOSITION | JP2000317775 |
| OPPOSITION | JPH06304852 |
| OPPOSITION | US2010080676 |
| OPPOSITION | US2011030185 |
| OPPOSITION | US2017028523 |
| OPPOSITION | US4841431 |
| OPPOSITION | US5339249 |
| OPPOSITION | US6304999 |
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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May 12, 2025
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Decision to grant a European patent
Search/Exam
Sep 16, 2022
(Electronic) Receipt
Search/Exam
Sep 16, 2022
French translation of claims
Search/Exam
Sep 16, 2022
German translation of the claims
Search/Exam
Sep 16, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 7, 2022
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Intention to grant (signatures)
Search/Exam
Jul 7, 2022
Text intended for grant (clean copy)
Search/Exam
Jul 7, 2022
Jun 15, 2022
Examination started
Search/Exam
Jan 28, 2021
(Electronic) Receipt
Search/Exam
Jan 28, 2021
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Amended claims with annotations
Search/Exam
Jan 28, 2021
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Amended description with annotations
Search/Exam
Jan 28, 2021
Amendments received before examination
Search/Exam
Jan 28, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 30, 2020
Jul 28, 2020
Jul 24, 2020
Communication to designated inventor
Search/Exam
Jul 6, 2020
Jun 22, 2020
(Electronic) Receipt
Search/Exam
Jun 22, 2020
Request for entry into the European phase
Search/Exam
May 4, 2020
Information on entry into European phase
Search/Exam
Jul 19, 2019
Jun 27, 2019
Copy of the international search report
Search/Exam
Jun 27, 2019
Published international application - A1
Search/Exam
Mar 7, 2019
ISR: cited documents
PCTISA
Mar 6, 2019
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Dec 21, 2018
Abstract
PCTISA
Dec 21, 2018
Claims
PCTISA
Dec 21, 2018
Description
PCTISA
Dec 21, 2018
Drawings
PCTISA
Dec 21, 2018
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