Four-Edged Drill

Patent No. EP3681660 (titled "Four-Edged Drill") was filed by Ghring on Sep 5, 2018. The application was issued on May 1, 2024.

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
BOTEK PRAZISIONSBOHRTECHNIK	Jan 31, 2025	DREISS PATENTANWALTE PARTG MBB

Dossier Documents

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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Jul 23, 2026
Brief communication - Opposition proceedings
Jul 23, 2026
Brief communication - Opposition proceedings
Jul 20, 2026
(Electronic) Receipt
Jul 20, 2026
Letter accompanying subsequently filed items
Jul 20, 2026
Withdrawal of an opposition
Jul 16, 2026
Brief communication - Opposition proceedings
Jul 13, 2026
(Electronic) Receipt
Jul 13, 2026
Amended description with annotations
Jul 13, 2026
Amended description with annotations
Jul 13, 2026
Amended description with annotations
Jul 13, 2026
Amended description with annotations
Jul 13, 2026
Amended description with annotations
Jul 13, 2026
Amended description with annotations
Jul 13, 2026
Amended description with annotations
Jul 13, 2026
Amended description with annotations
Jul 13, 2026
Amended description with annotations
Jul 13, 2026
Clean copy of description pages in the opposition procedure
Jul 13, 2026
Clean copy of description pages in the opposition procedure
Jul 13, 2026
Clean copy of description pages in the opposition procedure
Jul 13, 2026
Clean copy of description pages in the opposition procedure
Jul 13, 2026
Clean copy of description pages in the opposition procedure
Jul 13, 2026
Clean copy of description pages in the opposition procedure
Jul 13, 2026
Clean copy of description pages in the opposition procedure
Jul 13, 2026
Clean copy of description pages in the opposition procedure
Jul 13, 2026
Clean copy of description pages in the opposition procedure
Jul 13, 2026
Letter accompanying subsequently filed items
Jul 13, 2026
Written submission in preparation to/during oral proceedings
Jan 26, 2026
Annex to the communication - opposition
Jan 26, 2026
Information concerning oral proceedings
Jan 26, 2026
Scanned annex to a communication - opposition procedure
Jan 26, 2026
Summons to attend oral proceedings
Jan 26, 2026
Summons to attend oral proceedings
Aug 29, 2025
Brief communication - Opposition proceedings
Aug 25, 2025
(Electronic) Receipt
Aug 25, 2025
Letter accompanying subsequently filed items
Aug 25, 2025
Letter regarding the opposition procedure (no time limit)
Jun 17, 2025
Brief communication - Opposition proceedings
Jun 12, 2025
(Electronic) Receipt
Jun 12, 2025
Auxiliary request during Opposition procedure
Jun 12, 2025
Auxiliary request during Opposition procedure
Jun 12, 2025
Auxiliary request during Opposition procedure
Jun 12, 2025
Auxiliary request during Opposition procedure
Jun 12, 2025
Auxiliary request during Opposition procedure
Jun 12, 2025
Auxiliary request during Opposition procedure
Jun 12, 2025
Auxiliary request during Opposition procedure
Jun 12, 2025
Auxiliary request during Opposition procedure
Jun 12, 2025
Auxiliary request during Opposition procedure
Jun 12, 2025
Auxiliary request during Opposition procedure - 01
Jun 12, 2025
Auxiliary request during Opposition procedure - 02
Jun 12, 2025
Auxiliary request during Opposition procedure - 03
Jun 12, 2025
Auxiliary request during Opposition procedure - 04
Jun 12, 2025
Auxiliary request during Opposition procedure - 05
Jun 12, 2025
Auxiliary request during Opposition procedure - 06
Jun 12, 2025
Auxiliary request during Opposition procedure - 07
Jun 12, 2025
Auxiliary request during Opposition procedure - 08
Jun 12, 2025
Auxiliary request during Opposition procedure - 09
Jun 12, 2025
Letter accompanying subsequently filed items
Jun 12, 2025
Reply of the patent proprietor to the notice(s) of opposition
Feb 14, 2025
Communication of a notice of opposition and request to file observations
Feb 14, 2025
Notice of further oppositions to opponent(s)
Feb 5, 2025
Communication of a notice of opposition - first information to patent proprietor
Jan 31, 2025
(Electronic) Receipt
Jan 31, 2025
Citation in opposition procedure - 001
Jan 31, 2025
Citation in opposition procedure - 002
Jan 31, 2025
Citation in opposition procedure - 003
Jan 31, 2025
Citation in opposition procedure - 004
Jan 31, 2025
Citation in opposition procedure - 005
Jan 31, 2025
Citation in opposition procedure - 006
Jan 31, 2025
Citation in opposition procedure - 007
Jan 31, 2025
Citation in opposition procedure - 008
Jan 31, 2025
Consolidated list of cited opposition documents
Jan 31, 2025
Notice of opposition
Jan 31, 2025
Notice of opposition
May 15, 2024
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Apr 5, 2024
Decision to grant a European patent
Mar 25, 2024
(Electronic) Receipt
Mar 25, 2024
English translation of the claims
Mar 25, 2024
Filing of the translations of the claims
Mar 25, 2024
French translation of claims
Mar 25, 2024
Letter accompanying subsequently filed items
Dec 1, 2023
Annex to the communication about intention to grant a European patent
Dec 1, 2023
Bibliographic data of the European patent application
Dec 1, 2023
Communication about intention to grant a European patent
Dec 1, 2023
Intention to grant (signatures)
Dec 1, 2023
Text intended for grant (clean copy)
Dec 1, 2023
Text intended for grant (version for approval)
Nov 9, 2023
Examination started
Nov 4, 2022
Notice drawing attention to the payment of the renewal fee and additional fee
Nov 4, 2021
Notice drawing attention to the payment of the renewal fee and additional fee
Feb 23, 2021
Document concerning representation
Dec 9, 2020
(Electronic) Receipt
Dec 9, 2020
Invitation to file a copy of search results(priority)
Dec 9, 2020
Letter accompanying subsequently filed items
Dec 9, 2020
Priority search results
Dec 9, 2020
Reply to invitation to file a copy of priority search results
Nov 4, 2020
Notice drawing attention to the payment of the renewal fee and additional fee
Oct 23, 2020
(Electronic) Receipt
Oct 23, 2020
Amended claims filed after receipt of (European) search report
Oct 23, 2020
Amended claims with annotations
Oct 23, 2020
Amended description filed after receipt of (European) search report
Oct 23, 2020
Amended description with annotations
Oct 23, 2020
Amendments received before examination
Oct 23, 2020
Letter accompanying subsequently filed items
Jun 24, 2020
Notification on forthcoming publication of bibliographic data
Apr 22, 2020
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Apr 20, 2020
Communication to designated inventor
Mar 31, 2020
Copy of the international preliminary report on patentability
Feb 27, 2020
(Electronic) Receipt
Feb 27, 2020
Request for entry into the European phase
Jan 24, 2020
Information on entry into European phase
Apr 12, 2019
Priority document (electronically transmitted)
Mar 21, 2019
Copy of the international search report
Mar 21, 2019
Copy of the international search report
Mar 21, 2019
Published international application - A1
Jan 11, 2019
Written opinion of the ISA, boxes No. I to VIII
Jan 11, 2019
Written opinion of the ISA, cover sheet
Jan 11, 2019
Written opinion of the ISA, supplemental box
Nov 12, 2018
Incoming letter related to PCT RO
Nov 12, 2018
Substitute sheet (R26) - Drawings
Oct 1, 2018
Invitation to correct defects in the international application
Oct 1, 2018
Notification of the international application number and of the international filing date
Sep 19, 2018
Incoming letter related to PCT RO
Sep 5, 2018
(Electronic) Receipt
Sep 5, 2018
Abstract
Sep 5, 2018
Claims
Sep 5, 2018
Description
Sep 5, 2018
Document concerning fees and payments
Sep 5, 2018
Drawings
Sep 5, 2018
Electronic request for grant of an International application

EP3681660

GHRING

Application Number: EP18769616A
Filing Date: Sep 5, 2018
Status: Granted And Under Opposition; Mar 29, 2024
Publication Date: May 1, 2024
External Links: Slate, Register , Google Patents

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Dossier Documents

EP3681660