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The patent EP3058891 was granted to Gold Standard Instruments on Nov 6, 2019. The application was filed on Jun 7, 2005 under application number EP16164950A. 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 |
|---|---|---|---|
| COLTENEWHALEDENT | Aug 6, 2020 | HEPP WENGER RYFFEL | ADMISSIBLE |
| P&TS | Aug 6, 2020 | P&TS | ADMISSIBLE |
| NEOLIX | Jul 31, 2020 | BOUAN DU CHEF DU BOS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US4197643 |
| DESCRIPTION | US4443193 |
| DESCRIPTION | US4670024 |
| DESCRIPTION | US4776863 |
| DESCRIPTION | US4814294 |
| DESCRIPTION | US4820547 |
| DESCRIPTION | US4859493 |
| DESCRIPTION | US4892479 |
| DESCRIPTION | US4952236 |
| DESCRIPTION | US4984940 |
| DESCRIPTION | US4997686 |
| DESCRIPTION | US5037516 |
| DESCRIPTION | US5145517 |
| DESCRIPTION | US5156807 |
| DESCRIPTION | US5232361 |
| DESCRIPTION | US5264055 |
| DESCRIPTION | US5299937 |
| DESCRIPTION | US5300330 |
| DESCRIPTION | US5358586 |
| DESCRIPTION | US5380200 |
| DESCRIPTION | US5464362 |
| DESCRIPTION | US5545490 |
| DESCRIPTION | US5725573 |
| DESCRIPTION | US5863616 |
| DESCRIPTION | US5947723 |
| DESCRIPTION | US6132209 |
| DESCRIPTION | US6258182 |
| DESCRIPTION | US6306466 |
| DESCRIPTION | US6315558 |
| OPPOSITION | EP0684019 |
| OPPOSITION | EP0719523 |
| OPPOSITION | EP1481645 |
| OPPOSITION | EP3058891 |
| OPPOSITION | JP2003152564 |
| OPPOSITION | US2002137008 |
| OPPOSITION | US2004052676 |
| OPPOSITION | US2004171333 |
| OPPOSITION | US2005003325 |
| OPPOSITION | US5380200 |
| OPPOSITION | US5464362 |
| OPPOSITION | US5653590 |
| OPPOSITION | US5775902 |
| OPPOSITION | US5984679 |
| OPPOSITION | US6238491 |
| OPPOSITION | US6258182 |
| OPPOSITION | US6375458 |
| OPPOSITION | US6431863 |
| OPPOSITION | US8727773 |
| OPPOSITION | WO0115832 |
| OPPOSITION | WO2005122942 |
| SEARCH | US5380200 |
| SEARCH | US5464362 |
| SEARCH | US5653590 |
| SEARCH | US5775902 |
| SEARCH | US5984679 |
| SEARCH | US6238491 |
| SEARCH | US6431863 |
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 21, 2025
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Oct 17, 2025
Refund of fees
Appeal
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(Electronic) Receipt
Appeal
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Withdrawal of an appeal
Appeal
Oct 3, 2025
(Electronic) Receipt
Appeal
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Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Appeal
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Annexes in respect of a client data request
Search/Exam
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Nov 18, 2019
Oct 10, 2019
Decision to grant a European patent
Search/Exam
Sep 23, 2019
(Electronic) Receipt
Search/Exam
Sep 23, 2019
Filing of the translations of the claims
Search/Exam
Sep 23, 2019
French translation of claims
Search/Exam
Sep 23, 2019
German translation of the claims
Search/Exam
Sep 23, 2019
Letter accompanying subsequently filed items
Search/Exam
May 29, 2019
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Intention to grant (signatures)
Search/Exam
May 29, 2019
Text intended for grant (clean copy)
Search/Exam
May 29, 2019
May 28, 2019
Annex to the communication
Search/Exam
May 28, 2019
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May 16, 2019
Amended claims with annotations
Search/Exam
May 10, 2019
Annex to the communication
Search/Exam
May 10, 2019
Consultation by telephone/in person
Search/Exam
May 10, 2019
Mar 28, 2019
(Electronic) Receipt
Search/Exam
Mar 28, 2019
Amended claims with annotations
Search/Exam
Mar 28, 2019
Amended claims with annotations
Search/Exam
Mar 28, 2019
Claims
Search/Exam
Mar 28, 2019
Claims
Search/Exam
Mar 28, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 28, 2019
Feb 15, 2019
Advice of delivery
Search/Exam
Dec 12, 2018
Advice of delivery
Search/Exam
Dec 6, 2018
Acknowledgement of a document
Search/Exam
Dec 6, 2018
Annex to the communication
Search/Exam
Dec 6, 2018
Summons to attend oral proceedings
Search/Exam
Aug 13, 2018
(Electronic) Receipt
Search/Exam
Aug 13, 2018
Description
Search/Exam
Aug 13, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 13, 2018
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Annex to the communication
Search/Exam
Jun 15, 2018
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Mar 12, 2018
(Electronic) Receipt
Search/Exam
Mar 12, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 12, 2018
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Nov 30, 2017
Annex to the communication
Search/Exam
Nov 30, 2017
Communication from the Examining Division
Search/Exam
Nov 24, 2017
Examination started
Search/Exam
Feb 23, 2017
(Electronic) Receipt
Search/Exam
Feb 23, 2017
Feb 23, 2017
Amended claims with annotations
Search/Exam
Feb 23, 2017
Amendments received before examination
Search/Exam
Feb 23, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 29, 2016
Jul 27, 2016
Notification of forthcoming publication
Search/Exam
Jun 30, 2016
Jun 30, 2016
European search opinion
Search/Exam
Jun 30, 2016
European search report
Search/Exam
Jun 30, 2016
Information on Search Strategy
Search/Exam
Jun 21, 2016
Search started
Search/Exam
Jun 3, 2016
Communication to designated inventor
Search/Exam
Apr 21, 2016
Letter concerning the inventor
Search/Exam
Apr 12, 2016
Abstract
Search/Exam
Apr 12, 2016
Apr 12, 2016
Claims
Search/Exam
Apr 12, 2016
Description
Search/Exam
Apr 12, 2016
Designation of inventor
Search/Exam
Apr 12, 2016
Drawings
Search/Exam
Apr 12, 2016
Request for grant of a European patent
Search/Exam
Jan 18, 2006