Storage Stable Composition Comprising Rifaximin Alpha

Patent No. EP3373914 (titled "Storage Stable Composition Comprising Rifaximin Alpha") was filed by Sandoz on Mar 22, 2017. The application was issued on Jun 1, 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
ALFASIGMA	Jan 24, 2020	HIEBL

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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May 6, 2022
Decision to maintain the European patent in amended form
May 6, 2022
Decision to maintain the European patent in amended form
Apr 29, 2022
Termination of the opposition proceedings with maintenance of patent
Apr 20, 2022
(Electronic) Receipt
Apr 20, 2022
Filing of the translation of the amended claims
Apr 20, 2022
French translation of claims
Apr 20, 2022
German translation of the claims
Feb 11, 2022
Communication of bibliographic data
Feb 11, 2022
Communication to opponent concerning maintenance
Feb 11, 2022
Communication with request to file translations
Feb 8, 2022
Maintenance of the patent with the documents specified in the final decision
Nov 2, 2021
Advice of delivery
Oct 19, 2021
Advice of delivery
Oct 15, 2021
Annex to the communication - opposition
Oct 15, 2021
Decision of the Opposition Division and instruction
Oct 15, 2021
Druckexemplar in opposition procedure
Oct 15, 2021
Grounds for the decision (Annex) - opposition
Oct 15, 2021
Interlocutory decision in opposition proceedings
Oct 15, 2021
Interlocutory decision in opposition proceedings
Oct 15, 2021
Means of redress
Oct 15, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Oct 15, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Oct 15, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Oct 15, 2021
Provision of a copy of the minutes - opposition procedure
Oct 15, 2021
Provision of a copy of the minutes - opposition procedure
Oct 15, 2021
Scanned annex to a communication - opposition procedure
Oct 15, 2021
Scanned annex to a communication - opposition procedure
Oct 15, 2021
Scanned annex to a communication - opposition procedure
Oct 15, 2021
Transmittal of decision / summons - opposition
Oct 15, 2021
Transmittal of decision / summons - opposition
Sep 3, 2021
Information about the result of oral proceedings
Sep 1, 2021
Brief communication - Opposition proceedings
Aug 31, 2021
(Electronic) Receipt
Aug 31, 2021
Citation in opposition procedure - 034
Aug 31, 2021
Consolidated list of cited opposition documents
Aug 31, 2021
Letter accompanying subsequently filed items
Aug 31, 2021
Written submission in preparation to/during oral proceedings
Jul 22, 2021
Brief communication - Opposition proceedings
Jul 19, 2021
(Electronic) Receipt
Jul 19, 2021
Citation in opposition procedure - 033
Jul 19, 2021
Letter accompanying subsequently filed items
Jul 19, 2021
Written submission in preparation to/during oral proceedings
Jul 14, 2021
Brief communication - Opposition proceedings
Jul 14, 2021
Brief communication - Opposition proceedings
Jul 2, 2021
(Electronic) Receipt
Jul 2, 2021
Citation in opposition procedure - 018
Jul 2, 2021
Citation in opposition procedure - 019
Jul 2, 2021
Citation in opposition procedure - 020
Jul 2, 2021
Citation in opposition procedure - 021
Jul 2, 2021
Citation in opposition procedure - 022
Jul 2, 2021
Citation in opposition procedure - 023
Jul 2, 2021
Citation in opposition procedure - 024
Jul 2, 2021
Citation in opposition procedure - 025
Jul 2, 2021
Citation in opposition procedure - 026
Jul 2, 2021
Citation in opposition procedure - 027
Jul 2, 2021
Citation in opposition procedure - 028
Jul 2, 2021
Citation in opposition procedure - 029
Jul 2, 2021
Citation in opposition procedure - 030
Jul 2, 2021
Citation in opposition procedure - 031
Jul 2, 2021
Citation in opposition procedure - 032
Jul 2, 2021
Letter accompanying subsequently filed items
Jul 2, 2021
Written submission in preparation to/during oral proceedings
Jul 2, 2021
Written submission in preparation to/during oral proceedings
Jun 9, 2021
Non-public annex
Apr 30, 2021
Notification concerning the date of oral proceedings
Apr 30, 2021
Notification concerning the date of oral proceedings
Jan 22, 2021
Advice of delivery
Jan 19, 2021
Communication about missing advice of delivery
Nov 18, 2020
Advice of delivery
Nov 11, 2020
Acknowledgement of a document
Nov 11, 2020
Annex to the communication - opposition
Nov 11, 2020
Information concerning oral proceedings
Nov 11, 2020
Summons to attend oral proceedings
Nov 11, 2020
Summons to attend oral proceedings
Oct 16, 2020
Brief communication - Opposition proceedings
Oct 13, 2020
(Electronic) Receipt
Oct 13, 2020
Citation in opposition procedure - 017
Oct 13, 2020
Citation in opposition procedure - 017
Oct 13, 2020
Letter accompanying subsequently filed items
Oct 13, 2020
Letter regarding the opposition procedure (no time limit)
Jun 22, 2020
Brief communication - Opposition proceedings
Jun 16, 2020
(Electronic) Receipt
Jun 16, 2020
Auxiliary request during Opposition procedure
Jun 16, 2020
Auxiliary request during Opposition procedure
Jun 16, 2020
Auxiliary request during Opposition procedure - 01
Jun 16, 2020
Auxiliary request during Opposition procedure - 02
Jun 16, 2020
Citation in opposition procedure - 015
Jun 16, 2020
Citation in opposition procedure - 016
Jun 16, 2020
Letter accompanying subsequently filed items
Jun 16, 2020
Main request during Opposition procedure
Jun 16, 2020
Main request during Opposition procedure
Jun 16, 2020
Reply of the patent proprietor to the notice(s) of opposition
Feb 7, 2020
Communication of a notice of opposition and request to file observations
Feb 7, 2020
Notice of further oppositions to opponent(s)
Feb 3, 2020
Communication of a notice of opposition - first information to patent proprietor
Jan 24, 2020
(Electronic) Receipt
Jan 24, 2020
Any annexes (other than citation) to an opposition letter
Jan 24, 2020
Citation in opposition procedure - 001
Jan 24, 2020
Citation in opposition procedure - 001
Jan 24, 2020
Citation in opposition procedure - 002
Jan 24, 2020
Citation in opposition procedure - 002
Jan 24, 2020
Citation in opposition procedure - 003
Jan 24, 2020
Citation in opposition procedure - 003
Jan 24, 2020
Citation in opposition procedure - 004
Jan 24, 2020
Citation in opposition procedure - 005
Jan 24, 2020
Citation in opposition procedure - 006
Jan 24, 2020
Citation in opposition procedure - 007
Jan 24, 2020
Citation in opposition procedure - 008
Jan 24, 2020
Citation in opposition procedure - 009
Jan 24, 2020
Citation in opposition procedure - 010
Jan 24, 2020
Citation in opposition procedure - 011
Jan 24, 2020
Citation in opposition procedure - 012
Jan 24, 2020
Citation in opposition procedure - 013
Jan 24, 2020
Citation in opposition procedure - 014
Jan 24, 2020
Letter accompanying subsequently filed items
Jan 24, 2020
Letter accompanying subsequently filed items
Jan 24, 2020
Notice of opposition
Jan 24, 2020
Notice of opposition
Jan 24, 2020
Published international application - A1
Jan 24, 2020
Result of consultation by telephone/in person
May 7, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 28, 2019
Decision to grant a European patent
Feb 20, 2019
(Electronic) Receipt
Feb 20, 2019
Filing of the translations of the claims
Feb 20, 2019
French translation of claims
Feb 20, 2019
German translation of the claims
Feb 13, 2019
Bibliographic data of the European patent application
Feb 13, 2019
Communication about intention to grant a European patent
Feb 13, 2019
Intention to grant (signatures)
Feb 13, 2019
Text intended for grant (clean copy)
Feb 13, 2019
Text intended for grant (version for approval)
Jan 21, 2019
Examination started
Oct 3, 2018
Annexes to the international preliminary examination report
Oct 3, 2018
Copy of the international preliminary examination report
Aug 22, 2018
Notification on forthcoming publication of bibliographic data
Jul 5, 2018
Confirmation of effective date of early entry
Jul 4, 2018
Communication to designated inventor
Jul 4, 2018
Communication to designated inventor
Jun 29, 2018
Priority search results copy provided by EPO
Jun 15, 2018
(Electronic) Receipt
Jun 15, 2018
Request for entry into the European phase
Mar 21, 2018
Free text
Feb 23, 2018
Annex to International preliminary examination report
Feb 23, 2018
International preliminary examination report
Feb 23, 2018
International preliminary examination report - free text sheet
Feb 23, 2018
International preliminary examination report - points I-VIII
Feb 23, 2018
Transmittal of International Preliminary Examination Report
Jan 16, 2018
Notification of election of EPO
Dec 21, 2017
Notification of receipt of demand
Dec 15, 2017
(Electronic) Receipt
Dec 15, 2017
PCT demand form
Dec 15, 2017
PCT(IPEA): Amended sheet - claims
Dec 15, 2017
PCT(IPEA): Amended sheet - claims
Dec 15, 2017
Payment of fees and costs
Dec 15, 2017
Reply to International Search Opinion
Oct 17, 2017
Priority document (electronically transmitted)
Sep 28, 2017
Copy of the international search report
Sep 28, 2017
Published international application - A1
May 24, 2017
ISR: cited documents
May 23, 2017
Written opinion of the ISA, boxes No. I to VIII
May 23, 2017
Written opinion of the ISA, cover sheet
May 23, 2017
Written opinion of the ISA, supplemental box
Apr 28, 2017
Notification of the recording of a change
Apr 28, 2017
Notification of the recording of a change
Apr 10, 2017
(Electronic) Receipt
Apr 10, 2017
Incoming letter related to PCT RO
Apr 10, 2017
Incoming letter related to PCT RO
Apr 10, 2017
Substitute sheet (R26) Request
Apr 4, 2017
Notification of receipt of Search copy
Apr 3, 2017
Invitation to correct defects in the international application
Apr 3, 2017
Notification of the international application number and of the international filing date
Mar 29, 2017
Request form for international application (copy for ISA/EP)
Mar 22, 2017
(Electronic) Receipt
Mar 22, 2017
Abstract
Mar 22, 2017
Claims
Mar 22, 2017
Description
Mar 22, 2017
Document concerning fees and payments
Mar 22, 2017
Drawings
Mar 22, 2017
Electronic request for grant of an International application
Mar 22, 2017
Incoming communication concerning PCT Direct
Mar 22, 2017
Priority document (RO-procedure)

EP3373914

SANDOZ

Application Number: EP17712504A
Filing Date: Mar 22, 2017
Status: Patent Maintained As Amended; Apr 29, 2022
Publication Date: Jun 1, 2022
External Links: Slate, Register , Google Patents

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Storage Stable Composition Comprising Rifaximin Alpha

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Dossier Documents

EP3373914