Plate Heat Exchanger, Process Engineering System And Method

Patent No. EP3784974 (titled "Plate Heat Exchanger, Process Engineering System And Method") was filed by Linde on Apr 17, 2019. The application was issued on Jan 15, 2025.

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
LAIR LIQUIDE	Dec 1, 2022	AIR LIQUIDE

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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Dec 19, 2024
Decision to maintain the European patent in amended form
Dec 19, 2024
Decision to maintain the European patent in amended form
Dec 11, 2024
(Electronic) Receipt
Dec 11, 2024
English translation of the claims
Dec 11, 2024
Filing of the translation of the amended claims
Dec 11, 2024
French translation of claims
Dec 11, 2024
Letter accompanying subsequently filed items
Sep 20, 2024
Communication to opponent concerning maintenance
Sep 20, 2024
Communication with request to file translations
Sep 17, 2024
Maintenance of the patent with the documents specified in the final decision
May 31, 2024
Annex to the communication - opposition
May 31, 2024
Brief communication - Opposition proceedings
May 31, 2024
Brief communication - Opposition proceedings
May 31, 2024
Druckexemplar in opposition procedure
May 31, 2024
Grounds for the decision (Annex) - opposition
May 31, 2024
Interlocutory decision in opposition proceedings
May 31, 2024
Interlocutory decision in opposition proceedings
May 31, 2024
Means of redress
May 31, 2024
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
May 31, 2024
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
May 31, 2024
Provision of a copy of the minutes - opposition procedure
May 31, 2024
Provision of a copy of the minutes - opposition procedure
May 31, 2024
Scanned annex to a communication - opposition procedure
May 31, 2024
Scanned annex to a communication - opposition procedure
May 28, 2024
Decision of the Opposition Division and instruction
May 15, 2024
Information about the result of oral proceedings
May 6, 2024
Brief communication - Opposition proceedings
Apr 30, 2024
(Electronic) Receipt
Apr 30, 2024
Letter accompanying subsequently filed items
Apr 30, 2024
Written submission in preparation to/during oral proceedings
Mar 20, 2024
Brief communication - Opposition proceedings
Mar 19, 2024
Brief communication - Opposition proceedings
Mar 14, 2024
(Electronic) Receipt
Mar 14, 2024
(Electronic) Receipt
Mar 14, 2024
Auxiliary request during Opposition procedure
Mar 14, 2024
Auxiliary request during Opposition procedure - 05
Mar 14, 2024
Letter accompanying subsequently filed items
Mar 14, 2024
Letter accompanying subsequently filed items
Mar 14, 2024
Main request during Opposition procedure
Mar 14, 2024
Main request during Opposition procedure
Mar 14, 2024
Written submission in preparation to/during oral proceedings
Mar 14, 2024
Written submission in preparation to/during oral proceedings
Sep 18, 2023
(Electronic) Receipt
Sep 18, 2023
Advice of delivery
Sep 18, 2023
Letter accompanying subsequently filed items
Sep 13, 2023
Annex to the communication - opposition
Sep 13, 2023
Information concerning oral proceedings
Sep 13, 2023
Scanned annex to a communication - opposition procedure
Sep 13, 2023
Summons to attend oral proceedings
Sep 13, 2023
Summons to attend oral proceedings
Sep 13, 2023
Transmittal of decision / summons - opposition
Sep 13, 2023
Transmittal of decision / summons - opposition
May 3, 2023
Brief communication - Opposition proceedings
Apr 26, 2023
(Electronic) Receipt
Apr 26, 2023
Auxiliary request during Opposition procedure
Apr 26, 2023
Auxiliary request during Opposition procedure
Apr 26, 2023
Auxiliary request during Opposition procedure
Apr 26, 2023
Auxiliary request during Opposition procedure
Apr 26, 2023
Auxiliary request during Opposition procedure - 01
Apr 26, 2023
Auxiliary request during Opposition procedure - 02
Apr 26, 2023
Auxiliary request during Opposition procedure - 03
Apr 26, 2023
Auxiliary request during Opposition procedure - 04
Apr 26, 2023
Letter accompanying subsequently filed items
Apr 26, 2023
Main request during Opposition procedure
Apr 26, 2023
Main request during Opposition procedure
Apr 26, 2023
Reply of the patent proprietor to the notice(s) of opposition
Dec 16, 2022
Communication of a notice of opposition and request to file observations
Dec 16, 2022
Notice of further oppositions to opponent(s)
Dec 7, 2022
Communication of a notice of opposition - first information to patent proprietor
Dec 1, 2022
(Electronic) Receipt
Dec 1, 2022
Citation in opposition procedure - 001
Dec 1, 2022
Citation in opposition procedure - 001
Dec 1, 2022
Citation in opposition procedure - 002
Dec 1, 2022
Citation in opposition procedure - 003
Dec 1, 2022
Citation in opposition procedure - 004
Dec 1, 2022
Citation in opposition procedure - 004
Dec 1, 2022
Citation in opposition procedure - 005
Dec 1, 2022
Citation in opposition procedure - 006
Dec 1, 2022
Citation in opposition procedure - 007
Dec 1, 2022
Citation in opposition procedure - 008
Dec 1, 2022
Citation in opposition procedure - 009
Dec 1, 2022
Citation in opposition procedure - 010
Dec 1, 2022
Consolidated list of cited opposition documents
Dec 1, 2022
Letter accompanying subsequently filed items
Dec 1, 2022
Notice of opposition
Dec 1, 2022
Notice of opposition
Dec 1, 2022
Notice of opposition
Mar 15, 2022
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Feb 3, 2022
Decision to grant a European patent
Jan 19, 2022
English translation of the claims
Jan 19, 2022
Filing of the translations of the claims
Jan 19, 2022
French translation of claims
Jan 19, 2022
Letter concerning fees and payments
Oct 19, 2021
Bibliographic data of the European patent application
Oct 19, 2021
Communication about intention to grant a European patent
Oct 19, 2021
Intention to grant (signatures)
Oct 19, 2021
Text intended for grant (clean copy)
Oct 19, 2021
Text intended for grant (version for approval)
Sep 30, 2021
Examination started
Aug 24, 2021
Cover letter for submission of priority search results
Aug 24, 2021
Reply to invitation to file a copy of priority search results
Jul 21, 2021
Invitation to file a copy of search results(priority)
Feb 8, 2021
Communication to designated inventor
Feb 3, 2021
Notification on forthcoming publication of bibliographic data
Feb 2, 2021
Letter concerning the inventor
Jan 26, 2021
Invitation to indicate correct address of inventor
Jan 5, 2021
Letter which had not been notified
Dec 4, 2020
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Dec 2, 2020
Communication to designated inventor
Dec 2, 2020
Communication to designated inventor
Dec 2, 2020
Communication to designated inventor
Dec 2, 2020
Communication to designated inventor
Dec 2, 2020
Communication to designated inventor
Dec 2, 2020
Communication to designated inventor
Dec 2, 2020
Communication to designated inventor
Dec 2, 2020
Communication to designated inventor
Dec 2, 2020
Communication to designated inventor
Dec 2, 2020
Communication to designated inventor
Nov 9, 2020
Copy of the international preliminary report on patentability
Nov 5, 2020
Information regarding early processing
Oct 22, 2020
Request for entry into the European phase
Sep 4, 2020
Information on entry into European phase
Jul 23, 2020
Republication of front page of international application with corrected bibliographic data
Jun 29, 2020
Communication in cases for which no other form is applicable
Jun 18, 2020
Notification of the recording of a change
Jun 18, 2020
Notification of the recording of a change
Nov 19, 2019
Priority document (electronically transmitted)
Oct 31, 2019
Copy of the international search report
Oct 31, 2019
Copy of the international search report
Oct 31, 2019
Published international application - A1
Jul 18, 2019
ISR: cited documents
Jul 18, 2019
International Search Report - copy in English for the IB
Jul 18, 2019
Written opinion of the ISA, boxes No. I to VIII
Jul 18, 2019
Written opinion of the ISA, cover sheet
Jul 18, 2019
Written opinion of the ISA, supplemental box
May 16, 2019
Incoming letter related to PCT RO
May 14, 2019
Notification of receipt of Search copy
May 8, 2019
Notification of the international application number and of the international filing date
May 8, 2019
Request form for international application (copy for ISA/EP)
Apr 17, 2019
Abstract
Apr 17, 2019
Claims
Apr 17, 2019
Description
Apr 17, 2019
Drawings
Apr 17, 2019
Request for grant of an International application

EP3784974

LINDE

Application Number: EP19720366A
Filing Date: Apr 17, 2019
Status: Patent Maintained As Amended; Dec 13, 2024
Publication Date: Jan 15, 2025
External Links: Slate, Register , Google Patents

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Plate Heat Exchanger, Process Engineering System And Method

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Dossier Documents

EP3784974