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The patent EP3305447 was granted to Shanghai TEC Spiral Enterprises on Mar 29, 2023. The application was filed on Feb 14, 2016 under application number EP16889695A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| PTG PRAZISIONS TECHNIK HANDELSGESELLSCHAFT | Dec 29, 2023 | PATENTANWALTE DORNER & KOTTER PARTG MBB | ADMISSIBLE |
| STANLEY BLACK & DECKER | Dec 29, 2023 | SBD IPADMIN | ADMISSIBLE |
| RUKO PRAZISIONSWERKZEUGE | Jun 5, 2023 | SCHUPP | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | CN1375373 |
| EXAMINATION | CN202180238U |
| EXAMINATION | WO9731741 |
| INTERNATIONAL-SEARCH-REPORT | CN101977713B |
| INTERNATIONAL-SEARCH-REPORT | CN102126039 |
| INTERNATIONAL-SEARCH-REPORT | CN103084629 |
| INTERNATIONAL-SEARCH-REPORT | CN203649486U |
| INTERNATIONAL-SEARCH-REPORT | CN204953985U |
| INTERNATIONAL-SEARCH-REPORT | CN205551557U |
| INTERNATIONAL-SEARCH-REPORT | GB2318072 |
| INTERNATIONAL-SEARCH-REPORT | US5466100 |
| OPPOSITION | CN101977713 |
| OPPOSITION | CN1375373 |
| OPPOSITION | CN201223962Y |
| OPPOSITION | CN203356678U |
| OPPOSITION | CN203711939U |
| OPPOSITION | CN204953985U |
| OPPOSITION | DE202008000368U |
| OPPOSITION | DE20303656U |
| OPPOSITION | EP1512476 |
| OPPOSITION | JPH0435812U |
| OPPOSITION | KR20090014835 |
| OPPOSITION | US2006210949 |
| OPPOSITION | US2008166195 |
| OPPOSITION | US2011116884 |
| OPPOSITION | US2014363244 |
| OPPOSITION | US2193186 |
| OPPOSITION | US6652203 |
| OPPOSITION | WO2013042874 |
| OPPOSITION | WO2013143348 |
| OPPOSITION | WO2016207728 |
| OTHER | CN101977713B |
| OTHER | CN1375373 |
| OTHER | CN201223962Y |
| OTHER | CN204953985U |
| OTHER | DE202008000368U |
| OTHER | US2011116884 |
| OTHER | US2014363244 |
| OTHER | US2193186 |
| OTHER | WO2013143348 |
| SEARCH | CN203356678U |
| SEARCH | US2014363244 |
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.
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Mar 2, 2023
Decision to grant a European patent
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Feb 17, 2023
(Electronic) Receipt
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Feb 17, 2023
Letter concerning fees and payments
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Dec 29, 2022
(Electronic) Receipt
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Dec 29, 2022
Filing of the translations of the claims
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Dec 29, 2022
French translation of claims
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Dec 29, 2022
German translation of the claims
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Intention to grant (signatures)
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Nov 30, 2022
Text intended for grant (clean copy)
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Nov 30, 2022
Oct 18, 2022
Annex to the communication
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Oct 18, 2022
Consultation by telephone/in person
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Oct 18, 2022
Sep 1, 2022
(Electronic) Receipt
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Sep 1, 2022
Amended claims with annotations
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Sep 1, 2022
Claims
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Sep 1, 2022
Letter accompanying subsequently filed items
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Sep 1, 2022
Aug 19, 2022
Annex to a communication
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Aug 19, 2022
Annex to the communication
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Aug 19, 2022
Communication from the Examining Division
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Aug 16, 2022
Annex to the communication
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Aug 16, 2022
Consultation by telephone/in person
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Aug 16, 2022
May 30, 2022
(Electronic) Receipt
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May 30, 2022
Amended claims with annotations
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May 30, 2022
Claims
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May 30, 2022
Letter accompanying subsequently filed items
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May 30, 2022
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Annex to a communication
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May 11, 2022
Annex to a communication
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May 11, 2022
Annex to the communication
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May 11, 2022
Communication from the Examining Division
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May 6, 2022
Annex to the communication
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May 6, 2022
Consultation by telephone/in person
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May 6, 2022
Mar 8, 2022
(Electronic) Receipt
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Mar 8, 2022
Amended claims with annotations
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Mar 8, 2022
Claims
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Mar 8, 2022
Letter accompanying subsequently filed items
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Mar 8, 2022
Feb 18, 2022
(Electronic) Receipt
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Feb 18, 2022
Letter accompanying subsequently filed items
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Feb 8, 2022
Jan 31, 2022
(Electronic) Receipt
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Jan 31, 2022
Annexes in respect of a client data request
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Jan 31, 2022
Letter accompanying subsequently filed items
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Jan 31, 2022
Jan 28, 2022
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(Electronic) Receipt
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Jan 19, 2022
Annexes in respect of a client data request
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Jan 19, 2022
Letter accompanying subsequently filed items
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Jan 19, 2022
Nov 29, 2021
Annex to a communication
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Nov 29, 2021
Annex to a communication
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Nov 29, 2021
Annex to the communication
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Nov 29, 2021
Communication from the Examining Division
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Sep 28, 2021
(Electronic) Receipt
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Sep 28, 2021
Amended claims with annotations
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Sep 28, 2021
Amended description with annotations
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Sep 28, 2021
Claims
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Sep 28, 2021
Description
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Sep 28, 2021
Drawings
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Sep 28, 2021
Letter accompanying subsequently filed items
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Sep 28, 2021
Jul 16, 2021
Annex to the communication
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Jul 16, 2021
Communication from the Examining Division
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May 18, 2021
(Electronic) Receipt
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May 18, 2021
Amended claims with annotations
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May 18, 2021
Claims
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May 18, 2021
Letter accompanying subsequently filed items
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May 18, 2021
Jan 11, 2021
Annex to the communication
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Jan 11, 2021
Communication from the Examining Division
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Dec 21, 2020
Examination started
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Oct 28, 2020
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Oct 22, 2020
(Electronic) Receipt
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Oct 22, 2020
Authorisation
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Oct 22, 2020
Letter accompanying subsequently filed items
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Oct 22, 2020
Apr 10, 2019
(Electronic) Receipt
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Apr 10, 2019
Apr 10, 2019
Amended claims with annotations
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Apr 10, 2019
Apr 10, 2019
Amended description with annotations
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Apr 10, 2019
Amendments received before examination
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Apr 10, 2019
Letter accompanying subsequently filed items
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Jan 29, 2019
Jan 10, 2019
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European search opinion
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Jan 10, 2019
Information on Search Strategy
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Jan 10, 2019
Supplementary European search report
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Jan 9, 2019
Annex to a communication
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Aug 29, 2018
Aug 29, 2018
Mar 14, 2018
Notification of forthcoming publication
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Jan 19, 2018
Jan 17, 2018
Communication to designated inventor
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Jan 3, 2018
(Electronic) Receipt
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Jan 3, 2018
Abstract
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Jan 3, 2018
Claims
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Jan 3, 2018
Description
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Jan 3, 2018
Drawings
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Jan 3, 2018
Request for entry into the European phase
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Aug 17, 2017
Copy of the international search report
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Aug 17, 2017
Aug 17, 2017
International publication pamphlet
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