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The patent EP3263795 was granted to Heng on May 15, 2019. The application was filed on Jun 13, 2017 under application number EP17175623A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| INTEGRATED PRECAST SOLUTIONS PTE | Feb 17, 2020 | SCHWEIGER | ADMISSIBLE |
| LIN | Feb 13, 2020 | GROTH | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | FR2670523 |
| OPPOSITION | AU2008280579B |
| OPPOSITION | CN101208489 |
| OPPOSITION | DE10046138 |
| OPPOSITION | DE102006057134 |
| OPPOSITION | DE19835900 |
| OPPOSITION | DE202006007316U |
| OPPOSITION | DE202008017065U |
| OPPOSITION | DE20319471U |
| OPPOSITION | DE865652 |
| OPPOSITION | EP1471192 |
| OPPOSITION | EP2224075 |
| OPPOSITION | FR1448310 |
| OPPOSITION | FR2829778 |
| OPPOSITION | GB2410126 |
| OPPOSITION | GB2420126 |
| OPPOSITION | JP2013117104 |
| OPPOSITION | JP2017031721 |
| OPPOSITION | JPH07166601 |
| OPPOSITION | JPH09203143 |
| OPPOSITION | JPS537911B |
| OPPOSITION | JPS537911 |
| OPPOSITION | KR101389203B |
| OPPOSITION | KR101776129B |
| OPPOSITION | NZ264597 |
| OPPOSITION | US1240492 |
| OPPOSITION | US2014341654 |
| OPPOSITION | US2019169844 |
| OPPOSITION | US3394522 |
| OPPOSITION | US3550334 |
| OPPOSITION | US3564795 |
| OPPOSITION | US3710534 |
| OPPOSITION | US3772835 |
| OPPOSITION | US3812637 |
| OPPOSITION | US3890748 |
| OPPOSITION | US4107886 |
| OPPOSITION | US4136492 |
| OPPOSITION | US4211043 |
| OPPOSITION | US4696698 |
| OPPOSITION | US5440845 |
| OPPOSITION | US6070380 |
| OPPOSITION | US6658799 |
| OPPOSITION | US7681368 |
| OPPOSITION | WO0190499 |
| OPPOSITION | WO03008737 |
| OPPOSITION | WO2006131396 |
| OPPOSITION | WO2012175802 |
| OPPOSITION | WO9102862 |
| SEARCH | DE20319471U |
| SEARCH | EP2228505 |
| SEARCH | US2011023383 |
| SEARCH | US3803788 |
| SEARCH | US4107886 |
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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(Electronic) Receipt
Search/Exam
Jun 22, 2021
Advice of delivery
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Letter accompanying subsequently filed items
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OPPO
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OPPO
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Authorisation
OPPO
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May 27, 2019
Apr 18, 2019
Decision to grant a European patent
Search/Exam
Mar 28, 2019
(Electronic) Receipt
Search/Exam
Mar 28, 2019
Filing of the translations of the claims
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Mar 28, 2019
French translation of claims
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German translation of the claims
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Mar 28, 2019
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Feb 26, 2019
Text intended for grant (clean copy)
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Feb 26, 2019
Dec 21, 2018
(Electronic) Receipt
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Dec 21, 2018
Amended claims with annotations
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Dec 21, 2018
Amended description with annotations
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Dec 21, 2018
Claims
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Description
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Letter accompanying subsequently filed items
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Annex to the communication
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Annex to the communication
Search/Exam
Dec 6, 2018
Consultation by telephone/in person
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Dec 6, 2018
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(Electronic) Receipt
Search/Exam
Sep 10, 2018
Amended claims with annotations
Search/Exam
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Amended description with annotations
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Sep 10, 2018
Claims
Search/Exam
Sep 10, 2018
Description
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Sep 10, 2018
Letter accompanying subsequently filed items
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Sep 10, 2018
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Annex to the communication
Search/Exam
Jun 11, 2018
Communication from the Examining Division
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Jun 4, 2018
Examination started
Search/Exam
Apr 20, 2018
(Electronic) Receipt
Search/Exam
Apr 20, 2018
Letter accompanying subsequently filed items
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Apr 20, 2018
Apr 5, 2018
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(Electronic) Receipt
Search/Exam
Mar 21, 2018
Annexes in respect of a client data request
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Mar 21, 2018
Letter accompanying subsequently filed items
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Mar 21, 2018
Mar 9, 2018
(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Amended drawings with annotations
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Mar 9, 2018
Amendments received before examination
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Mar 9, 2018
Letter accompanying subsequently filed items
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Jan 8, 2018
Dec 6, 2017
Notification of forthcoming publication
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Oct 25, 2017
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European search opinion
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European search report
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Oct 25, 2017
Information on Search Strategy
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Oct 11, 2017
Search started
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Jul 31, 2017
Letter concerning the priority
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Jul 31, 2017
Priority document
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Jul 31, 2017
Priority document
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Jun 13, 2017
Abstract
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Jun 13, 2017
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Claims
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Jun 13, 2017
Description
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Jun 13, 2017
Designation of inventor
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Jun 13, 2017
Drawings
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Jun 13, 2017
Request for grant of a European patent
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