High Efficiency Step-Structured Twist Drill

Patent No. EP3305447 (titled "High Efficiency Step-Structured Twist Drill") was filed by Shanghai TEC Spiral Enterprises on Feb 14, 2016. The application was issued on Mar 29, 2023.

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
PTG PRAZISIONS TECHNIK HANDELSGESELLSCHAFT	Dec 29, 2023	PATENTANWALTE DORNER & KOTTER PARTG MBB
STANLEY BLACK & DECKER	Dec 29, 2023	SBD IPADMIN
RUKO PRAZISIONSWERKZEUGE	Jun 5, 2023	SCHUPP

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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Aug 20, 2024
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Aug 20, 2024
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Aug 20, 2024
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Aug 20, 2024
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
May 16, 2024
Brief communication - Opposition proceedings
May 16, 2024
Brief communication - Opposition proceedings
May 16, 2024
Brief communication - Opposition proceedings
May 16, 2024
Brief communication - Opposition proceedings
May 16, 2024
Decision revoking the European patent
May 16, 2024
Decision revoking the European patent
May 16, 2024
Decision revoking the European patent
May 16, 2024
Decision revoking the European patent
May 10, 2024
Brief communication - Opposition proceedings
May 10, 2024
Brief communication - Opposition proceedings
May 10, 2024
Brief communication - Opposition proceedings
May 8, 2024
(Electronic) Receipt
May 8, 2024
Letter accompanying subsequently filed items
May 8, 2024
Request for revocation of patent
Apr 30, 2024
(Electronic) Receipt
Apr 30, 2024
Letter accompanying subsequently filed items
Apr 30, 2024
Withdrawal of application
Mar 7, 2024
Brief communication - Opposition proceedings
Mar 7, 2024
Brief communication - Opposition proceedings
Mar 7, 2024
Brief communication - Opposition proceedings
Mar 7, 2024
Communication confirming withdrawal from representation
Mar 7, 2024
Communication of amended entries concerning the representative
Mar 1, 2024
Submission concerning change of proprietor's representative
Jan 16, 2024
Communication of a notice of opposition and request to file observations
Jan 16, 2024
Notice of further oppositions to opponent(s)
Jan 16, 2024
Notice of further oppositions to opponent(s)
Jan 16, 2024
Notice of further oppositions to opponent(s)
Jan 5, 2024
Communication of a notice of opposition - first information to patent proprietor
Jan 5, 2024
Communication of a notice of opposition - first information to patent proprietor
Jan 3, 2024
Letter regarding the opposition procedure (no time limit)
Jan 2, 2024
Brief communication - Opposition proceedings
Jan 2, 2024
Transmittal of third party observations to applicant
Dec 29, 2023
(Electronic) Receipt
Dec 29, 2023
Citation in opposition procedure
Dec 29, 2023
Citation in opposition procedure
Dec 29, 2023
Citation in opposition procedure
Dec 29, 2023
Citation in opposition procedure
Dec 29, 2023
Citation in opposition procedure
Dec 29, 2023
Citation in opposition procedure
Dec 29, 2023
Citation in opposition procedure
Dec 29, 2023
Citation in opposition procedure - 015
Dec 29, 2023
Citation in opposition procedure - 015
Dec 29, 2023
Citation in opposition procedure - 016
Dec 29, 2023
Citation in opposition procedure - 017
Dec 29, 2023
Citation in opposition procedure - 017
Dec 29, 2023
Citation in opposition procedure - 017
Dec 29, 2023
Citation in opposition procedure - 018
Dec 29, 2023
Citation in opposition procedure - 019
Dec 29, 2023
Citation in opposition procedure - 020
Dec 29, 2023
Citation in opposition procedure - 021
Dec 29, 2023
Citation in opposition procedure - 022
Dec 29, 2023
Citation in opposition procedure - 022
Dec 29, 2023
Citation in opposition procedure - 022
Dec 29, 2023
Citation in opposition procedure - 023
Dec 29, 2023
Consolidated list of cited opposition documents
Dec 29, 2023
Letter regarding the opposition procedure (no time limit)
Dec 29, 2023
Notice of opposition
Dec 29, 2023
Notice of opposition
Dec 21, 2023
(Electronic) Receipt
Dec 21, 2023
Any annexes (other than citation) to an opposition letter
Dec 21, 2023
Citation in opposition procedure
Dec 21, 2023
Citation in opposition procedure - 011
Dec 21, 2023
Citation in opposition procedure - 012
Dec 21, 2023
Citation in opposition procedure - 012
Dec 21, 2023
Citation in opposition procedure - 013
Dec 21, 2023
Citation in opposition procedure - 013
Dec 21, 2023
Citation in opposition procedure - 014
Dec 21, 2023
Citation in opposition procedure - 014
Dec 21, 2023
Notice of opposition
Dec 21, 2023
Notice of opposition
Dec 20, 2023
Observations by third parties
Dec 20, 2023
Observations by third parties
Dec 19, 2023
Brief communication - Opposition proceedings
Dec 19, 2023
Transmittal of third party observations to applicant
Dec 12, 2023
Observations by third parties
Dec 12, 2023
Observations by third parties
Jul 24, 2023
Citation in opposition procedure - 001
Jul 24, 2023
Citation in opposition procedure - 002
Jul 24, 2023
Citation in opposition procedure - 003
Jul 24, 2023
Citation in opposition procedure - 007
Jul 24, 2023
Letter regarding the opposition procedure (no time limit)
Jun 14, 2023
Request for documents
Jun 12, 2023
Communication of a notice of opposition - first information to patent proprietor
Jun 9, 2023
Citation in opposition procedure
Jun 9, 2023
Citation in opposition procedure - 001
Jun 9, 2023
Citation in opposition procedure - 002
Jun 9, 2023
Citation in opposition procedure - 003
Jun 9, 2023
Citation in opposition procedure - 004
Jun 9, 2023
Citation in opposition procedure - 005
Jun 9, 2023
Citation in opposition procedure - 006
Jun 9, 2023
Citation in opposition procedure - 007
Jun 9, 2023
Citation in opposition procedure - 008
Jun 9, 2023
Citation in opposition procedure - 009
Jun 9, 2023
Citation in opposition procedure - 010
Jun 9, 2023
Notice of opposition
Jun 9, 2023
Notice of opposition
Jun 5, 2023
Any annexes (other than citation) to an opposition letter
Jun 5, 2023
Notice of opposition
Jun 5, 2023
Notice of opposition
Jun 5, 2023
Submission concerning representation
Apr 13, 2023
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 2, 2023
Decision to grant a European patent
Feb 17, 2023
(Electronic) Receipt
Feb 17, 2023
Letter concerning fees and payments
Dec 29, 2022
(Electronic) Receipt
Dec 29, 2022
Filing of the translations of the claims
Dec 29, 2022
French translation of claims
Dec 29, 2022
German translation of the claims
Nov 30, 2022
Annex to the communication about intention to grant a European patent
Nov 30, 2022
Bibliographic data of the European patent application
Nov 30, 2022
Communication about intention to grant a European patent
Nov 30, 2022
Intention to grant (signatures)
Nov 30, 2022
Text intended for grant (clean copy)
Nov 30, 2022
Text intended for grant (version for approval)
Oct 18, 2022
Annex to the communication
Oct 18, 2022
Consultation by telephone/in person
Oct 18, 2022
Result of consultation by telephone/in person
Sep 1, 2022
(Electronic) Receipt
Sep 1, 2022
Amended claims with annotations
Sep 1, 2022
Claims
Sep 1, 2022
Letter accompanying subsequently filed items
Sep 1, 2022
Reply to communication from the Examining Division
Aug 19, 2022
Annex to a communication
Aug 19, 2022
Annex to the communication
Aug 19, 2022
Communication from the Examining Division
Aug 16, 2022
Annex to the communication
Aug 16, 2022
Consultation by telephone/in person
Aug 16, 2022
Result of consultation by telephone/in person
May 30, 2022
(Electronic) Receipt
May 30, 2022
Amended claims with annotations
May 30, 2022
Claims
May 30, 2022
Letter accompanying subsequently filed items
May 30, 2022
Reply to communication from the Examining Division
May 11, 2022
Annex to a communication
May 11, 2022
Annex to a communication
May 11, 2022
Annex to the communication
May 11, 2022
Communication from the Examining Division
May 6, 2022
Annex to the communication
May 6, 2022
Consultation by telephone/in person
May 6, 2022
Result of consultation by telephone/in person
Mar 8, 2022
(Electronic) Receipt
Mar 8, 2022
Amended claims with annotations
Mar 8, 2022
Claims
Mar 8, 2022
Letter accompanying subsequently filed items
Mar 8, 2022
Reply to communication from the Examining Division
Feb 18, 2022
(Electronic) Receipt
Feb 18, 2022
Letter accompanying subsequently filed items
Feb 8, 2022
Communication of the registration of a transfer or change of name and/or address
Jan 31, 2022
(Electronic) Receipt
Jan 31, 2022
Annexes in respect of a client data request
Jan 31, 2022
Letter accompanying subsequently filed items
Jan 31, 2022
Miscellaneous requests concerning client data
Jan 28, 2022
Indication of deficiencies in a request for registering a transfer of rights and invitation to correct them
Jan 19, 2022
(Electronic) Receipt
Jan 19, 2022
Annexes in respect of a client data request
Jan 19, 2022
Letter accompanying subsequently filed items
Jan 19, 2022
Submission concerning a transfer of rights (applicant)
Nov 29, 2021
Annex to a communication
Nov 29, 2021
Annex to a communication
Nov 29, 2021
Annex to the communication
Nov 29, 2021
Communication from the Examining Division
Sep 28, 2021
(Electronic) Receipt
Sep 28, 2021
Amended claims with annotations
Sep 28, 2021
Amended description with annotations
Sep 28, 2021
Claims
Sep 28, 2021
Description
Sep 28, 2021
Drawings
Sep 28, 2021
Letter accompanying subsequently filed items
Sep 28, 2021
Reply to communication from the Examining Division
Jul 16, 2021
Annex to the communication
Jul 16, 2021
Communication from the Examining Division
May 18, 2021
(Electronic) Receipt
May 18, 2021
Amended claims with annotations
May 18, 2021
Claims
May 18, 2021
Letter accompanying subsequently filed items
May 18, 2021
Reply to communication from the Examining Division
Jan 11, 2021
Annex to the communication
Jan 11, 2021
Communication from the Examining Division
Dec 21, 2020
Examination started
Oct 28, 2020
Communication concerning the filing of a power of attorney
Oct 28, 2020
Communication of amended entries concerning the representative
Oct 22, 2020
(Electronic) Receipt
Oct 22, 2020
Authorisation
Oct 22, 2020
Letter accompanying subsequently filed items
Oct 22, 2020
Submission concerning change of applicant's representative
Apr 10, 2019
(Electronic) Receipt
Apr 10, 2019
Amended claims filed after receipt of (European) search report
Apr 10, 2019
Amended claims with annotations
Apr 10, 2019
Amended description filed after receipt of (European) search report
Apr 10, 2019
Amended description with annotations
Apr 10, 2019
Amendments received before examination
Apr 10, 2019
Letter accompanying subsequently filed items
Jan 29, 2019
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Jan 10, 2019
Communication regarding the transmission of the European search report
Jan 10, 2019
European search opinion
Jan 10, 2019
Information on Search Strategy
Jan 10, 2019
Supplementary European search report
Jan 9, 2019
Annex to a communication
Aug 29, 2018
Copy of the international preliminary report on patentability
Aug 29, 2018
Translation of the international preliminary report on patentability
Mar 14, 2018
Notification of forthcoming publication
Jan 19, 2018
Communication regarding possible amendment of the application/payment of claims fee
Jan 17, 2018
Communication to designated inventor
Jan 3, 2018
(Electronic) Receipt
Jan 3, 2018
Abstract
Jan 3, 2018
Claims
Jan 3, 2018
Description
Jan 3, 2018
Drawings
Jan 3, 2018
Request for entry into the European phase
Aug 17, 2017
Copy of the international search report
Aug 17, 2017
Copy of the translated international search report
Aug 17, 2017
International publication pamphlet

EP3305447

SHANGHAI TEC SPIRAL ENTERPRISES

Application Number: EP16889695A
Filing Date: Feb 14, 2016
Status: Revoked; Aug 15, 2024
Publication Date: Mar 29, 2023
External Links: Slate, Register , Google Patents

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High Efficiency Step-Structured Twist Drill

Patent Summary

Patent Family

Patent Oppositions (3)

Dossier Documents

EP3305447