Cannabidiol Preparations And Its Uses

Patent No. EP3784283 (titled "Cannabidiol Preparations And Its Uses") was filed by GW Research on Apr 26, 2019. The application was issued on Oct 23, 2024.

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
KRAUS & LEDERER PARTGMBB	Jul 23, 2025	KRAUS & LEDERER PARTGMBB
HAMM & WITTKOPP	Jul 22, 2025	HAMM & WITTKOPP

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 10, 2025
Decision revoking the European patent
Dec 10, 2025
Decision revoking the European patent
Dec 10, 2025
Decision revoking the European patent
Dec 8, 2025
Brief communication - Opposition proceedings
Dec 8, 2025
Brief communication - Opposition proceedings
Dec 4, 2025
(Electronic) Receipt
Dec 4, 2025
Letter accompanying subsequently filed items
Dec 4, 2025
Request for revocation of patent
Aug 4, 2025
Communication of a notice of opposition and request to file observations
Aug 4, 2025
Notice of further oppositions to opponent(s)
Aug 4, 2025
Notice of further oppositions to opponent(s)
Jul 28, 2025
Communication of a notice of opposition - first information to patent proprietor
Jul 28, 2025
Communication of a notice of opposition - first information to patent proprietor
Jul 23, 2025
(Electronic) Receipt
Jul 23, 2025
Citation in opposition procedure - 001
Jul 23, 2025
Citation in opposition procedure - 001
Jul 23, 2025
Citation in opposition procedure - 002
Jul 23, 2025
Citation in opposition procedure - 002
Jul 23, 2025
Citation in opposition procedure - 003
Jul 23, 2025
Citation in opposition procedure - 004
Jul 23, 2025
Citation in opposition procedure - 005
Jul 23, 2025
Citation in opposition procedure - 006
Jul 23, 2025
Citation in opposition procedure - 007
Jul 23, 2025
Citation in opposition procedure - 008
Jul 23, 2025
Citation in opposition procedure - 008
Jul 23, 2025
Citation in opposition procedure - 008
Jul 23, 2025
Citation in opposition procedure - 008
Jul 23, 2025
Citation in opposition procedure - 009
Jul 23, 2025
Citation in opposition procedure - 010
Jul 23, 2025
Citation in opposition procedure - 011
Jul 23, 2025
Citation in opposition procedure - 012
Jul 23, 2025
Citation in opposition procedure - 013
Jul 23, 2025
Citation in opposition procedure - 014
Jul 23, 2025
Citation in opposition procedure - 015
Jul 23, 2025
Citation in opposition procedure - 016
Jul 23, 2025
Citation in opposition procedure - 017
Jul 23, 2025
Citation in opposition procedure - 018
Jul 23, 2025
Citation in opposition procedure - 019
Jul 23, 2025
Consolidated list of cited opposition documents
Jul 23, 2025
Notice of opposition
Jul 23, 2025
Notice of opposition
Jul 22, 2025
(Electronic) Receipt
Jul 22, 2025
Citation in opposition procedure
Jul 22, 2025
Citation in opposition procedure - 020
Jul 22, 2025
Citation in opposition procedure - 021
Jul 22, 2025
Citation in opposition procedure - 022
Jul 22, 2025
Citation in opposition procedure - 023
Jul 22, 2025
Citation in opposition procedure - 024
Jul 22, 2025
Notice of opposition
Jul 22, 2025
Notice of opposition
Nov 6, 2024
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Sep 26, 2024
Decision to grant a European patent
Sep 13, 2024
(Electronic) Receipt
Sep 13, 2024
French translation of claims
Sep 13, 2024
German translation of the claims
Sep 13, 2024
Letter accompanying subsequently filed items
Aug 5, 2024
Change to the inventor details
Jul 29, 2024
Communication of the registration of a transfer or change of name and/or address
Jul 23, 2024
(Electronic) Receipt
Jul 23, 2024
Annexes in respect of a client data request
Jul 23, 2024
Annexes in respect of a client data request
Jul 23, 2024
Letter accompanying subsequently filed items
Jul 23, 2024
Submission concerning change of applicant's name
May 15, 2024
Annex to the communication about intention to grant a European patent
May 15, 2024
Bibliographic data of the European patent application
May 15, 2024
Communication about intention to grant a European patent
May 15, 2024
Intention to grant (signatures)
May 15, 2024
Text intended for grant (clean copy)
May 15, 2024
Text intended for grant (version for approval)
May 6, 2024
Annex to the communication
May 6, 2024
Minutes of the oral proceedings (examining division)
May 6, 2024
Minutes of the oral proceedings (examining division)
May 6, 2024
Provision of a copy of the minutes of oral proceedings
Apr 17, 2024
(Electronic) Receipt
Apr 17, 2024
Amended description with annotations
Apr 17, 2024
Description
Apr 17, 2024
Letter accompanying subsequently filed items
Apr 17, 2024
Matter concerning the application
Apr 15, 2024
(Electronic) Receipt
Apr 15, 2024
(Electronic) Receipt
Apr 15, 2024
(Electronic) Receipt
Apr 15, 2024
(Electronic) Receipt
Apr 15, 2024
Amended claims with annotations
Apr 15, 2024
Amended claims with annotations
Apr 15, 2024
Claims
Apr 15, 2024
Claims
Apr 15, 2024
Letter accompanying subsequently filed items
Apr 15, 2024
Letter accompanying subsequently filed items
Apr 15, 2024
Letter accompanying subsequently filed items
Apr 15, 2024
Letter accompanying subsequently filed items
Apr 15, 2024
Matter concerning the application
Apr 15, 2024
Notification concerning the date of oral proceedings
Apr 15, 2024
Written submission in preparation to/during oral proceedings
Apr 15, 2024
Written submission in preparation to/during oral proceedings
Apr 15, 2024
Written submission in preparation to/during oral proceedings
Apr 12, 2024
(Electronic) Receipt
Apr 12, 2024
Letter accompanying subsequently filed items
Apr 12, 2024
Written submission in preparation to/during oral proceedings
Apr 5, 2024
Annex to the communication
Apr 5, 2024
Consultation by telephone/in person
Apr 5, 2024
Result of consultation by telephone/in person
Apr 3, 2024
Communication for party to proceedings/third party
Mar 15, 2024
(Electronic) Receipt
Mar 15, 2024
Amended claims with annotations
Mar 15, 2024
Amended claims with annotations
Mar 15, 2024
Amended claims with annotations
Mar 15, 2024
Annex
Mar 15, 2024
Annex
Mar 15, 2024
Annex
Mar 15, 2024
Claims
Mar 15, 2024
Claims
Mar 15, 2024
Claims
Mar 15, 2024
Letter accompanying subsequently filed items
Mar 15, 2024
Non-patent literature cited during the examination procedure
Mar 15, 2024
Non-patent literature cited during the examination procedure
Mar 15, 2024
Written submission in preparation to/during oral proceedings
Mar 13, 2024
Annex to the communication
Mar 13, 2024
Consultation by telephone/in person
Mar 13, 2024
Result of consultation by telephone/in person
Nov 14, 2023
Annex to the communication
Nov 14, 2023
Summons to attend oral proceedings
Dec 21, 2022
(Electronic) Receipt
Dec 21, 2022
Amended claims with annotations
Dec 21, 2022
Claims
Dec 21, 2022
Letter accompanying subsequently filed items
Dec 21, 2022
Reply to communication from the Examining Division
Aug 24, 2022
Annex to the communication
Aug 24, 2022
Communication from the Examining Division
Aug 18, 2022
Examination started
Nov 10, 2021
Document concerning representation
Nov 10, 2021
Letter accompanying subsequently filed items
May 21, 2021
(Electronic) Receipt
May 21, 2021
Amended claims filed after receipt of (European) search report
May 21, 2021
Amended claims with annotations
May 21, 2021
Amendments received before examination
May 21, 2021
Letter accompanying subsequently filed items
Feb 3, 2021
Notification on forthcoming publication of bibliographic data
Dec 4, 2020
Communication concerning correction of deficiencies in 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
Nov 4, 2020
(Electronic) Receipt
Nov 4, 2020
Request for entry into the European phase
Nov 2, 2020
Copy of the international preliminary examination report
Sep 4, 2020
Information on entry into European phase
Aug 27, 2020
Annex to International preliminary examination report
Aug 27, 2020
International preliminary examination report
Aug 27, 2020
International preliminary examination report - free text sheet
Aug 27, 2020
International preliminary examination report - points I-VIII
Aug 27, 2020
Transmittal of International Preliminary Examination Report
Aug 4, 2020
Despatch of copy of consultation
Aug 4, 2020
Result of consultation
Aug 4, 2020
Separate sheet with IPEA428
Jul 9, 2020
Written opinion
Jul 9, 2020
Written opinion - free text sheet
Jul 9, 2020
Written opinion - points I-VIII
May 26, 2020
(Electronic) Receipt
May 26, 2020
Letter regarding PCTII procedure
May 26, 2020
PCT(IPEA): Amended sheet - claims
May 26, 2020
Reply to communication PCT/IPEA/408
Mar 26, 2020
Copy of the international search report
Mar 26, 2020
Published international application - A9
Mar 26, 2020
Written opinion
Mar 26, 2020
Written opinion - free text sheet
Mar 26, 2020
Written opinion - points I-VIII
Mar 16, 2020
Notification of election of EPO
Mar 11, 2020
Amendments of documents (Article 19 PCT) (without attachments)
Feb 28, 2020
Notification of receipt of demand
Feb 25, 2020
Communication in cases for which no other form is applicable
Feb 25, 2020
Request for correction of obvious error
Feb 24, 2020
(Electronic) Receipt
Feb 24, 2020
PCT demand form
Feb 24, 2020
PCT(IPEA): Amended sheet - claims
Feb 24, 2020
Payment of fees and costs
Feb 24, 2020
Reply to International Search Opinion
Feb 21, 2020
Notification of decision concerning request for rectification
Feb 21, 2020
Rectified drawings sheet(s) produced by ISA/EP under rule 91 PCT
Feb 7, 2020
Incoming letter related to ISA procedure
Feb 7, 2020
Notification Concerning Documents Transmitted (copy for ISA/EP)
Feb 7, 2020
Request for correction of obvious error
Nov 18, 2019
Priority document (electronically transmitted)
Oct 31, 2019
Copy of the international search report
Oct 31, 2019
Published international application - A1
Jul 26, 2019
ISR: cited documents
Jul 26, 2019
Written opinion of the ISA, boxes No. I to VIII
Jul 26, 2019
Written opinion of the ISA, cover sheet
Jul 26, 2019
Written opinion of the ISA, supplemental box
Jun 14, 2019
Incoming letter related to ISA procedure
Jun 14, 2019
Incoming letter related to ISA procedure
Jun 14, 2019
Notification Concerning Documents Transmitted (copy for ISA/EP)
Jun 14, 2019
Substitute sheet (Rule 26) - drawings for ISA/EP
May 22, 2019
Notification relating to declaration under Rule 4.17 PCT (copy for ISA/EP)
May 16, 2019
Notification of receipt of Search copy
May 3, 2019
Abstract
May 3, 2019
Claims
May 3, 2019
Description
May 3, 2019
Drawings
May 3, 2019
Fee calculation sheet for an international application
May 3, 2019
Invitation to Correct Defects in the International Application (copy for ISA/EP)
May 3, 2019
Notification Concerning Documents Transmitted (copy for ISA/EP)
May 3, 2019
Notification Concerning Payment of Prescribed Fees (copy for ISA/EP)
May 3, 2019
Notification of the International Application Number and of the International Filing Date (copy for ISA/EP)
May 3, 2019
Request form for international application (copy for ISA/EP)

EP3784283

GW RESEARCH

Application Number: EP19721363A
Filing Date: Apr 26, 2019
Status: Granted And Under Opposition; Sep 19, 2024
Publication Date: Oct 23, 2024
External Links: Slate, Register , Google Patents

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Cannabidiol Preparations And Its Uses

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP3784283