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The patent EP3509493 was granted to DRR Dental on Jan 10, 2024. The application was filed on Sep 12, 2017 under application number EP17776950A. 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 |
|---|---|---|---|
| PALODEX GROUP | Nov 17, 2021 | BERGGREN | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP0908762 |
| INTERNATIONAL-SEARCH-REPORT | US2012019369 |
| INTERNATIONAL-SEARCH-REPORT | US5264684 |
| OPPOSITION | EP2386904 |
| OPPOSITION | US5757021 |
| OPPOSITION | US7355195 |
| OPPOSITION | WO2010109064 |
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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Mar 13, 2024
Mar 13, 2024
Mar 13, 2024
Mar 7, 2024
(Electronic) Receipt
Search/Exam
Mar 7, 2024
Letter accompanying subsequently filed items
Search/Exam
Mar 7, 2024
Letter accompanying subsequently filed items
Search/Exam
Mar 7, 2024
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Means of redress
OPPO
May 19, 2023
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Document concerning representation
Search/Exam
Mar 1, 2021
Jan 21, 2021
Decision to grant a European patent
Search/Exam
Jan 8, 2021
(Electronic) Receipt
Search/Exam
Jan 8, 2021
English translation of the claims
Search/Exam
Jan 8, 2021
French translation of claims
Search/Exam
Jan 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 8, 2020
Sep 8, 2020
Sep 8, 2020
Intention to grant (signatures)
Search/Exam
Sep 8, 2020
Text intended for grant (clean copy)
Search/Exam
Sep 8, 2020
Aug 20, 2020
Examination started
Search/Exam
Oct 25, 2019
(Electronic) Receipt
Search/Exam
Oct 25, 2019
Oct 25, 2019
Amended claims with annotations
Search/Exam
Oct 25, 2019
Oct 25, 2019
Amended description with annotations
Search/Exam
Oct 25, 2019
Amendments received before examination
Search/Exam
Oct 25, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 19, 2019
Apr 23, 2019
Apr 17, 2019
Communication to designated inventor
Search/Exam
Apr 17, 2019
Communication to designated inventor
Search/Exam
Mar 27, 2019
Feb 15, 2019
(Electronic) Receipt
Search/Exam
Feb 15, 2019
Priority search results copy provided by EPO
Search/Exam
Feb 15, 2019
Request for entry into the European phase
Search/Exam
Jan 18, 2019
Information on entry into European phase
Search/Exam
Jan 16, 2019
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Jan 16, 2019
Notification of the recording of a change
Search/Exam
Dec 21, 2018
Apr 4, 2018
Mar 15, 2018
Copy of the international search report
Search/Exam
Mar 15, 2018
Copy of the international search report
Search/Exam
Mar 15, 2018
Published international application - A1
Search/Exam
Jan 9, 2018
Nov 30, 2017
ISR: cited documents
PCTISA
Nov 30, 2017
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Oct 12, 2017
Sep 20, 2017
Sep 15, 2017
Sep 12, 2017
(Electronic) Receipt
PCTRO
Sep 12, 2017
Abstract
PCTRO
Sep 12, 2017
Claims
PCTRO
Sep 12, 2017
Description
PCTRO
Sep 12, 2017
Sep 12, 2017
Drawings
PCTRO
Sep 12, 2017