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The patent EP3551406 was granted to Carbicrete on Oct 4, 2023. The application was filed on Dec 8, 2017 under application number EP17878931A. 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 |
|---|---|---|---|
| ORBIX PRODUCTIONS | May 29, 2024 | GEVERS PATENTS | ADMISSIBLE |
| TATA STEEL IJMUIDEN | May 7, 2024 | GROUP SERVICES | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2015139121 |
| DESCRIPTION | WO2016082030 |
| INTERNATIONAL-SEARCH-REPORT | US2005160946 |
| INTERNATIONAL-SEARCH-REPORT | WO2015139121 |
| OPPOSITION | CN104773981 |
| OPPOSITION | JP2003212617 |
| OPPOSITION | US9126866 |
| OPPOSITION | WO2004076376 |
| OPPOSITION | WO2015139121 |
| OPPOSITION | WO2016154021 |
| SEARCH | FR2735804 |
| SEARCH | US2001023655 |
| SEARCH | US2014328624 |
| SEARCH | US2016272545 |
| SEARCH | US5744078 |
| SEARCH | WO2009132692 |
| SEARCH | WO2015139121 |
| SEARCH | WO2016082030 |
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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(Electronic) Receipt
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Aug 29, 2023
Letter accompanying subsequently filed items
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Aug 29, 2023
Aug 14, 2023
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Decision to grant a European patent
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Aug 3, 2023
Letter accompanying subsequently filed items
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Aug 3, 2023
Jul 25, 2023
(Electronic) Receipt
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Jul 25, 2023
French translation of claims
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Jul 25, 2023
German translation of the claims
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Jul 25, 2023
Letter accompanying subsequently filed items
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Jun 12, 2023
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Intention to grant (signatures)
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Jun 12, 2023
Text intended for grant (clean copy)
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Jun 12, 2023
Feb 9, 2022
(Electronic) Receipt
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Feb 9, 2022
Amended claims with annotations
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Feb 9, 2022
Amended description with annotations
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Feb 9, 2022
Annex
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Feb 9, 2022
Annex
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Feb 9, 2022
Claims
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Feb 9, 2022
Description
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Feb 9, 2022
Letter accompanying subsequently filed items
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Feb 9, 2022
Feb 7, 2022
Dec 10, 2021
(Electronic) Receipt
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Dec 10, 2021
Amended claims with annotations
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Dec 10, 2021
Amended description with annotations
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Dec 10, 2021
Claims
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Dec 10, 2021
Description
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Dec 10, 2021
Letter accompanying subsequently filed items
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Dec 10, 2021
Dec 9, 2021
Annex to the communication
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Dec 9, 2021
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May 21, 2021
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May 5, 2021
(Electronic) Receipt
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May 5, 2021
Letter accompanying subsequently filed items
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May 5, 2021
May 4, 2021
(Electronic) Receipt
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May 4, 2021
(Electronic) Receipt
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May 4, 2021
Letter accompanying subsequently filed items
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May 4, 2021
Letter accompanying subsequently filed items
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May 4, 2021
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Apr 19, 2021
(Electronic) Receipt
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Apr 19, 2021
Amended claims with annotations
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Apr 19, 2021
Amended description with annotations
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Apr 19, 2021
Claims
Search/Exam
Apr 19, 2021
Description
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Apr 19, 2021
Letter accompanying subsequently filed items
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Apr 19, 2021
Dec 23, 2020
Dec 18, 2020
(Electronic) Receipt
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Dec 18, 2020
Letter accompanying subsequently filed items
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Dec 18, 2020
Oct 20, 2020
Annex to the communication
Search/Exam
Oct 20, 2020
Communication from the Examining Division
Search/Exam
Oct 14, 2020
Examination started
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May 12, 2020
(Electronic) Receipt
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May 12, 2020
May 12, 2020
Amended claims with annotations
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May 12, 2020
Amendments received before examination
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May 12, 2020
Letter accompanying subsequently filed items
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May 8, 2020
Apr 29, 2020
(Electronic) Receipt
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Apr 29, 2020
Annexes in respect of a client data request
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Apr 29, 2020
Letter accompanying subsequently filed items
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Apr 29, 2020
Nov 12, 2019
Oct 25, 2019
Oct 25, 2019
European search opinion
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Oct 25, 2019
Information on Search Strategy
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Oct 25, 2019
Supplementary European search report
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Oct 15, 2019
Search started
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Sep 18, 2019
Jul 12, 2019
Communication to designated inventor
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Jul 12, 2019
Communication to designated inventor
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Jul 4, 2019
(Electronic) Receipt
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Jul 4, 2019
Jul 4, 2019
Amended claims with annotations
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Jul 4, 2019
Amendments received before examination
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Jul 4, 2019
Request for entry into the European phase
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Jun 24, 2019
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Information on entry into European phase
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Jul 5, 2018
Jun 14, 2018
Copy of the international search report
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Jun 14, 2018
Published international application - A1
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