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Limewater

Patent No. EP3793960 (titled "Limewater") was filed by Carmeuse Research And Technology on Nov 5, 2019. The application was issued on Aug 10, 2022.

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
LHOIST RECHERCHE ET DEVELOPPEMENT	May 10, 2023	CALYSTA

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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Mar 24, 2025
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Dec 17, 2024
(Electronic) Receipt
Dec 17, 2024
Brief communication - Opposition proceedings
Dec 17, 2024
Decision to discontinue the opposition proceedings
Dec 17, 2024
Letter accompanying subsequently filed items
Dec 17, 2024
Letter regarding the opposition procedure (no time limit)
Dec 9, 2024
Brief communication - Opposition proceedings
Dec 9, 2024
Brief communication - Opposition proceedings
Dec 4, 2024
(Electronic) Receipt
Dec 4, 2024
Letter accompanying subsequently filed items
Dec 4, 2024
Withdrawal of an opposition
Jul 15, 2024
Annex to the communication - opposition
Jul 15, 2024
Information concerning oral proceedings
Jul 15, 2024
Scanned annex to a communication - opposition procedure
Jul 15, 2024
Summons to attend oral proceedings
Jul 15, 2024
Summons to attend oral proceedings
Apr 11, 2024
Brief communication - Opposition proceedings
Apr 8, 2024
(Electronic) Receipt
Apr 8, 2024
Letter accompanying subsequently filed items
Apr 8, 2024
Letter regarding the opposition procedure (no time limit)
Sep 25, 2023
Brief communication - Opposition proceedings
Sep 20, 2023
(Electronic) Receipt
Sep 20, 2023
Auxiliary request during Opposition procedure
Sep 20, 2023
Auxiliary request during Opposition procedure
Sep 20, 2023
Auxiliary request during Opposition procedure
Sep 20, 2023
Auxiliary request during Opposition procedure
Sep 20, 2023
Auxiliary request during Opposition procedure - 01
Sep 20, 2023
Auxiliary request during Opposition procedure - 02
Sep 20, 2023
Auxiliary request during Opposition procedure - 03
Sep 20, 2023
Auxiliary request during Opposition procedure - 04
Sep 20, 2023
Letter accompanying subsequently filed items
Sep 20, 2023
Reply of the patent proprietor to the notice(s) of opposition
May 23, 2023
Communication of a notice of opposition and request to file observations
May 23, 2023
Notice of further oppositions to opponent(s)
May 15, 2023
Communication of a notice of opposition - first information to patent proprietor
May 10, 2023
(Electronic) Receipt
May 10, 2023
Citation in opposition procedure - 001
May 10, 2023
Citation in opposition procedure - 002
May 10, 2023
Citation in opposition procedure - 003
May 10, 2023
Citation in opposition procedure - 004
May 10, 2023
Citation in opposition procedure - 005
May 10, 2023
Citation in opposition procedure - 006
May 10, 2023
Citation in opposition procedure - 007
May 10, 2023
Citation in opposition procedure - 008
May 10, 2023
Citation in opposition procedure - 009
May 10, 2023
Citation in opposition procedure - 010
May 10, 2023
Citation in opposition procedure - 011
May 10, 2023
Citation in opposition procedure - 012
May 10, 2023
Citation in opposition procedure - 013
May 10, 2023
Citation in opposition procedure - 014
May 10, 2023
Citation in opposition procedure - 015
May 10, 2023
Citation in opposition procedure - 016
May 10, 2023
Citation in opposition procedure - 017
May 10, 2023
Citation in opposition procedure - 018
May 10, 2023
Consolidated list of cited opposition documents
May 10, 2023
Notice of opposition
May 10, 2023
Notice of opposition
Sep 6, 2022
Refund of fees
Aug 23, 2022
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 14, 2022
Decision to grant a European patent
Jul 5, 2022
(Electronic) Receipt
Jul 5, 2022
English translation of the claims
Jul 5, 2022
Filing of the translations of the claims
Jul 5, 2022
German translation of the claims
Jul 5, 2022
Letter accompanying subsequently filed items
May 10, 2022
Bibliographic data of the European patent application
May 10, 2022
Communication about intention to grant a European patent
May 10, 2022
Intention to grant (signatures)
May 10, 2022
Text intended for grant (clean copy)
May 10, 2022
Text intended for grant (version for approval)
May 9, 2022
(Electronic) Receipt
May 9, 2022
Enquiry as to the processing of the file
May 9, 2022
Letter accompanying subsequently filed items
Feb 23, 2022
(Electronic) Receipt
Feb 23, 2022
Letter accompanying subsequently filed items
Feb 23, 2022
Reply to communication from the Examining Division
Jan 28, 2022
Acknowledgement of receipt of third party observations
Jan 28, 2022
Annex to the communication
Jan 28, 2022
Communication from the Examining Division
Jan 28, 2022
Transmittal of third party observations to applicant
Jan 27, 2022
(Electronic) Receipt
Jan 27, 2022
Amended claims with annotations
Jan 27, 2022
Amended description with annotations
Jan 27, 2022
Claims
Jan 27, 2022
Description
Jan 27, 2022
Letter accompanying subsequently filed items
Jan 27, 2022
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Jan 27, 2022
Translation of the claims
Jan 27, 2022
Translation of the claims
Jan 25, 2022
(Electronic) Receipt
Jan 25, 2022
Letter accompanying subsequently filed items
Jan 25, 2022
Observations by third parties
Dec 14, 2021
Bibliographic data of the European patent application
Dec 14, 2021
Communication about intention to grant a European patent
Dec 14, 2021
Intention to grant (signatures)
Dec 14, 2021
Text intended for grant (clean copy)
Dec 14, 2021
Text intended for grant (version for approval)
Oct 29, 2021
Examination started
May 25, 2021
Copy of the international preliminary report on patentability
May 14, 2021
Acknowledgement of receipt of third party observations
May 14, 2021
Transmittal of third party observations to applicant
May 11, 2021
(Electronic) Receipt
May 11, 2021
Letter accompanying subsequently filed items
May 11, 2021
Reply from applicant/patentee regarding third party observations
May 10, 2021
Communication of amended entries concerning the representative
May 7, 2021
Non-patent literature filed by a third party
May 7, 2021
Non-patent literature filed by a third party
May 7, 2021
Observations by third parties
May 7, 2021
Observations by third parties
May 7, 2021
Patent document filed by a Third party
May 7, 2021
Patent document filed by a Third party
May 7, 2021
Patent document filed by a Third party
May 7, 2021
Patent document filed by a Third party
May 7, 2021
Patent document filed by a Third party
Apr 30, 2021
Submission concerning change of applicant's representative
Apr 23, 2021
Acknowledgement of receipt of third party observations
Apr 23, 2021
Transmittal of third party observations to applicant
Apr 19, 2021
(Electronic) Receipt
Apr 19, 2021
Letter accompanying subsequently filed items
Apr 19, 2021
Non-patent literature filed by a third party
Apr 19, 2021
Non-patent literature filed by a third party
Apr 19, 2021
Observations by third parties
Apr 19, 2021
Patent document filed by a Third party
Apr 19, 2021
Patent document filed by a Third party
Apr 19, 2021
Patent document filed by a Third party
Apr 19, 2021
Patent document filed by a Third party
Apr 19, 2021
Patent document filed by a Third party
Mar 17, 2021
(Electronic) Receipt
Mar 17, 2021
Amended claims filed after receipt of (European) search report
Mar 17, 2021
Amendments received before examination
Mar 17, 2021
Letter accompanying subsequently filed items
Mar 12, 2021
Notification of the recording of a change
Mar 12, 2021
Notification of the recording of a change
Mar 12, 2021
Notification of the recording of a change
Mar 11, 2021
Deficiencies in an enquiry
Mar 3, 2021
(Electronic) Receipt
Mar 3, 2021
Enquiry as to when a communication from the Examining Division can be expected
Mar 3, 2021
Letter accompanying subsequently filed items
Feb 24, 2021
Notification on forthcoming publication of bibliographic data
Jan 14, 2021
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Jan 11, 2021
Confirmation of effective date of early entry
Dec 23, 2020
Communication to designated inventor
Dec 23, 2020
Communication to designated inventor
Dec 23, 2020
Communication to designated inventor
Dec 22, 2020
Priority search results copy provided by EPO
Dec 17, 2020
(Electronic) Receipt
Dec 17, 2020
Amended claims filed after receipt of (European) search report
Dec 17, 2020
Amendments received before examination
Dec 17, 2020
Request for entry into the European phase
Jun 4, 2020
Priority document (electronically transmitted)
May 14, 2020
Copy of the international preliminary report on patentability
May 14, 2020
Copy of the international search report
May 14, 2020
Copy of the international search report
May 14, 2020
Published international application - A1
Jan 15, 2020
Notification of the recording of a change
Jan 2, 2020
Notification relating to declaration under Rule 4.17 PCT (copy for ISA/EP)
Nov 12, 2019
Notification of the international application number and of the international filing date
Nov 5, 2019
(Electronic) Receipt
Nov 5, 2019
Abstract
Nov 5, 2019
Claims
Nov 5, 2019
Description
Nov 5, 2019
Document concerning fees and payments
Nov 5, 2019
Electronic request for grant of an International application

EP3793960

CARMEUSE RESEARCH AND TECHNOLOGY

Application Number: EP19795579A
Filing Date: Nov 5, 2019
Status: Granted And Under Opposition; Jul 8, 2022
Publication Date: Aug 10, 2022
External Links: Slate, EP3793960B1, Google Patents

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Limewater

Patent Summary

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Patent Oppositions

Dossier Documents

EP3793960