Method For Producing Three-Dimensionally Layered Shaped Bodies

Patent No. EP3634726 (titled "Method For Producing Three-Dimensionally Layered Shaped Bodies") was filed by ASK Chemicals on Jun 5, 2018. The application was issued on Jan 25, 2023.

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
HUTTENES ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRANKTER HAFTUNG	Oct 25, 2023	EISENFUHR SPEISER

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 3, 2025
Annex to the communication - opposition
Dec 3, 2025
Information concerning oral proceedings
Dec 3, 2025
Scanned annex to a communication - opposition procedure
Dec 3, 2025
Summons to attend oral proceedings
Dec 3, 2025
Summons to attend oral proceedings
Mar 15, 2024
Brief communication - Opposition proceedings
Mar 11, 2024
(Electronic) Receipt
Mar 11, 2024
Auxiliary request during Opposition procedure
Mar 11, 2024
Auxiliary request during Opposition procedure - 01
Mar 11, 2024
Letter accompanying subsequently filed items
Mar 11, 2024
Reply of the patent proprietor to the notice(s) of opposition
Nov 9, 2023
Communication of a notice of opposition and request to file observations
Nov 9, 2023
Notice of further oppositions to opponent(s)
Oct 31, 2023
Communication of a notice of opposition - first information to patent proprietor
Oct 25, 2023
(Electronic) Receipt
Oct 25, 2023
Any annexes (other than citation) to an opposition letter
Oct 25, 2023
Any annexes (other than citation) to an opposition letter
Oct 25, 2023
Citation in opposition procedure - 001
Oct 25, 2023
Citation in opposition procedure - 002
Oct 25, 2023
Citation in opposition procedure - 003
Oct 25, 2023
Citation in opposition procedure - 004
Oct 25, 2023
Citation in opposition procedure - 005
Oct 25, 2023
Citation in opposition procedure - 006
Oct 25, 2023
Citation in opposition procedure - 007
Oct 25, 2023
Citation in opposition procedure - 008
Oct 25, 2023
Consolidated list of cited opposition documents
Oct 25, 2023
Notice of opposition
Oct 25, 2023
Notice of opposition
Feb 7, 2023
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jan 5, 2023
Decision to grant a European patent
Dec 21, 2022
(Electronic) Receipt
Dec 21, 2022
English translation of the claims
Dec 21, 2022
Filing of the translations of the claims
Dec 21, 2022
French translation of claims
Dec 21, 2022
Letter accompanying subsequently filed items
Nov 10, 2022
Annex to the communication about intention to grant a European patent
Nov 10, 2022
Bibliographic data of the European patent application
Nov 10, 2022
Communication about intention to grant a European patent
Nov 10, 2022
Intention to grant (signatures)
Nov 10, 2022
Text intended for grant (clean copy)
Nov 10, 2022
Text intended for grant (version for approval)
May 18, 2022
(Electronic) Receipt
May 18, 2022
Amended claims with annotations
May 18, 2022
Amended description with annotations
May 18, 2022
Claims
May 18, 2022
Description
May 18, 2022
Letter accompanying subsequently filed items
May 18, 2022
Reply to communication from the Examining Division
Feb 18, 2022
Annex to the communication
Feb 18, 2022
Communication from the Examining Division
Feb 14, 2022
Examination started
Sep 21, 2020
(Electronic) Receipt
Sep 21, 2020
Letter accompanying subsequently filed items
Sep 21, 2020
Priority search results
Sep 21, 2020
Reply to invitation to file a copy of priority search results
Sep 2, 2020
Invitation to file a copy of search results(priority)
Mar 18, 2020
Notification on forthcoming publication of bibliographic data
Jan 15, 2020
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Jan 13, 2020
Communication to designated inventor
Jan 13, 2020
Communication to designated inventor
Jan 13, 2020
Communication to designated inventor
Jan 6, 2020
Copy of the international preliminary report on patentability
Dec 23, 2019
(Electronic) Receipt
Dec 23, 2019
Amended claims filed after receipt of (European) search report
Dec 23, 2019
Amended claims with annotations
Dec 23, 2019
Request for entry into the European phase
Oct 18, 2019
Information on entry into European phase
Jan 4, 2019
Priority document (electronically transmitted)
Dec 13, 2018
Copy of the international search report
Dec 13, 2018
Copy of the international search report
Dec 13, 2018
Published international application - A1
Sep 14, 2018
ISR: cited documents
Sep 14, 2018
International Search Report - copy in English for the IB
Sep 13, 2018
Written opinion of the ISA, boxes No. I to VIII
Sep 13, 2018
Written opinion of the ISA, cover sheet
Sep 13, 2018
Written opinion of the ISA, supplemental box
Jul 6, 2018
Notification of receipt of Search copy
Jun 14, 2018
Abstract
Jun 14, 2018
Claims
Jun 14, 2018
Description
Jun 14, 2018
Request form for international application (copy for ISA/EP)

EP3634726

ASK CHEMICALS

Application Number: EP18732647A
Filing Date: Jun 5, 2018
Status: Granted And Under Opposition; Dec 23, 2022
Publication Date: Jan 25, 2023
External Links: Slate, Register , Google Patents

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Method For Producing Three-Dimensionally Layered Shaped Bodies

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Dossier Documents

EP3634726