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The patent EP3509496 was granted to DRR Dental on Jul 31, 2024. The application was filed on Sep 12, 2017 under application number EP17776951A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| WUNDERLICH | Apr 25, 2025 | WUNDERLICH & HEIM PATENTANWALTE PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US2012181437 |
| EXAMINATION | US5376806 |
| EXAMINATION | US5596202 |
| INTERNATIONAL-SEARCH-REPORT | US2009212107 |
| INTERNATIONAL-SEARCH-REPORT | US2012019369 |
| OPPOSITION | EP0981766 |
| OPPOSITION | EP2527874 |
| OPPOSITION | US2006098785 |
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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Aug 13, 2024
Jul 4, 2024
Decision to grant a European patent
Search/Exam
Jun 24, 2024
(Electronic) Receipt
Search/Exam
Jun 24, 2024
English translation of the claims
Search/Exam
Jun 24, 2024
French translation of claims
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Jun 24, 2024
Letter accompanying subsequently filed items
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Mar 13, 2024
Mar 13, 2024
Mar 7, 2024
(Electronic) Receipt
Search/Exam
Mar 7, 2024
Letter accompanying subsequently filed items
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Mar 7, 2024
Letter accompanying subsequently filed items
Search/Exam
Mar 7, 2024
Mar 7, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Intention to grant (signatures)
Search/Exam
Feb 27, 2024
Text intended for grant (clean copy)
Search/Exam
Feb 27, 2024
Sep 20, 2023
(Electronic) Receipt
Search/Exam
Sep 20, 2023
Claims
Search/Exam
Sep 20, 2023
Description
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Sep 20, 2023
Letter accompanying subsequently filed items
Search/Exam
Sep 20, 2023
May 10, 2023
Annex to the communication
Search/Exam
May 10, 2023
May 10, 2023
May 2, 2023
(Electronic) Receipt
Search/Exam
May 2, 2023
Letter accompanying subsequently filed items
Search/Exam
May 2, 2023
Jan 31, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 31, 2023
Submission concerning representation
Search/Exam
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Intention to grant (signatures)
Search/Exam
Dec 20, 2022
Text intended for grant (clean copy)
Search/Exam
Dec 20, 2022
Dec 20, 2021
(Electronic) Receipt
Search/Exam
Dec 20, 2021
Amended claims with annotations
Search/Exam
Dec 20, 2021
Amended description with annotations
Search/Exam
Dec 20, 2021
Claims
Search/Exam
Dec 20, 2021
Description
Search/Exam
Dec 20, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 20, 2021
Aug 12, 2021
Annex to the communication
Search/Exam
Aug 12, 2021
Communication from the Examining Division
Search/Exam
Jul 19, 2021
Document concerning representation
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Dec 23, 2020
(Electronic) Receipt
Search/Exam
Dec 23, 2020
Amended claims with annotations
Search/Exam
Dec 23, 2020
Amended description with annotations
Search/Exam
Dec 23, 2020
Claims
Search/Exam
Dec 23, 2020
Description
Search/Exam
Dec 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 23, 2020
Dec 22, 2020
Dec 17, 2020
(Electronic) Receipt
Search/Exam
Dec 17, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 17, 2020
Aug 27, 2020
Annex to the communication
Search/Exam
Aug 27, 2020
Communication from the Examining Division
Search/Exam
Aug 21, 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
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Oct 25, 2019
Letter accompanying subsequently filed items
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Jun 19, 2019
Apr 23, 2019
Apr 17, 2019
Communication to designated inventor
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Apr 17, 2019
Communication to designated inventor
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Mar 27, 2019
Feb 25, 2019
Information regarding early processing
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Feb 15, 2019
(Electronic) Receipt
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Feb 15, 2019
Priority search results copy provided by EPO
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Feb 15, 2019
Request for entry into the European phase
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Jan 18, 2019
Information on entry into European phase
Search/Exam
Jan 16, 2019
Jan 16, 2019
Jan 16, 2019
Notification of the recording of a change
Search/Exam
Dec 21, 2018
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
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Mar 15, 2018
Published international application - A1
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Jan 9, 2018
Nov 30, 2017
ISR: cited documents
PCTISA
Nov 30, 2017
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Oct 12, 2017
Sep 18, 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