Partially Neutralized Acid Coated Food-Grade Particles

Patent No. EP2037758 (titled "Partially Neutralized Acid Coated Food-Grade Particles") was filed by Purac Biochem on Jul 12, 2007. The application was issued on Sep 19, 2018.

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
JUNGBUNZLAUER LADENBURG	Jun 14, 2019	ZELLENTIN & PARTNER MBB PATENTANWALTE
TOMERIUS	Jun 14, 2019	LOUIS POHLAU LOHRENTZ

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

Get instant alerts for new documents

Jan 28, 2026
F3345 Forwarding of submissions to parties
Jan 28, 2026
F3345 Forwarding of submissions to parties
Jan 23, 2026
(Electronic) Receipt
Jan 23, 2026
Letter accompanying subsequently filed items
Jan 23, 2026
Letter dealing with oral proceedings during the appeal procedure
Jan 14, 2026
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 14, 2026
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 14, 2026
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Sep 23, 2025
F3010 Oral proceedings: order for summons
Sep 23, 2025
F3011.2 Oral Proceedings: Summons VICO
Sep 23, 2025
F3011.2 Oral Proceedings: Summons VICO
Sep 23, 2025
F3011.2 Oral Proceedings: Summons VICO
Sep 18, 2025
F3303.14 Composition of the Board (T), in case Chairman is a legal member
Jul 22, 2025
F3345 Forwarding of submissions to parties
Jul 22, 2025
F3345 Forwarding of submissions to parties
Jul 17, 2025
(Electronic) Receipt
Jul 17, 2025
Amended claims with annotations
Jul 17, 2025
Amended claims with annotations
Jul 17, 2025
Auxiliary request during appeals procedure - 06
Jul 17, 2025
Auxiliary request during appeals procedure - 07
Jul 17, 2025
Letter accompanying subsequently filed items
Jul 17, 2025
Reply to appeal
Mar 19, 2025
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Mar 19, 2025
F3345 Forwarding of submissions to parties
Mar 14, 2025
(Electronic) Receipt
Mar 14, 2025
Citation in appeal procedure - 038
Mar 14, 2025
Citation in appeal procedure - 039
Mar 14, 2025
Citation in appeal procedure - 040
Mar 14, 2025
Letter accompanying subsequently filed items
Mar 14, 2025
Statement of grounds of appeal
Jan 17, 2025
F3204 Communication of the file number to the parties
Jan 17, 2025
F3204 Communication of the file number to the parties
Jan 17, 2025
F3204 Communication of the file number to the parties
Jan 13, 2025
(Electronic) Receipt
Jan 13, 2025
Letter accompanying subsequently filed items
Jan 13, 2025
Notice of appeal
Dec 10, 2024
Brief communication - Opposition proceedings
Dec 10, 2024
Brief communication - Opposition proceedings
Dec 10, 2024
Brief communication - Opposition proceedings
Dec 10, 2024
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 21, 2024
Result of consultation by telephone/in person
Nov 14, 2024
Annex to the communication - opposition
Nov 14, 2024
Brief communication - Opposition proceedings
Nov 14, 2024
Brief communication - Opposition proceedings
Nov 14, 2024
Brief communication - Opposition proceedings
Nov 14, 2024
Decision of the Opposition Division and instruction
Nov 14, 2024
Druckexemplar in opposition procedure
Nov 14, 2024
Grounds for the decision (Annex) - opposition
Nov 14, 2024
Interlocutory decision in opposition proceedings
Nov 14, 2024
Interlocutory decision in opposition proceedings
Nov 14, 2024
Interlocutory decision in opposition proceedings
Nov 14, 2024
Means of redress
Nov 14, 2024
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 14, 2024
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 14, 2024
Provision of a copy of the minutes - opposition procedure
Nov 14, 2024
Provision of a copy of the minutes - opposition procedure
Nov 14, 2024
Provision of a copy of the minutes - opposition procedure
Nov 14, 2024
Scanned annex to a communication - opposition procedure
Nov 14, 2024
Scanned annex to a communication - opposition procedure
Nov 14, 2024
Scanned annex to a communication - opposition procedure
Nov 14, 2024
Scanned annex to a communication - opposition procedure
Sep 18, 2024
Information about the result of oral proceedings
Sep 16, 2024
Brief communication - Opposition proceedings
Sep 16, 2024
Brief communication - Opposition proceedings
Sep 10, 2024
(Electronic) Receipt
Sep 10, 2024
Letter accompanying subsequently filed items
Sep 10, 2024
Written submission in preparation to/during oral proceedings
Sep 9, 2024
Brief communication - Opposition proceedings
Sep 9, 2024
Brief communication - Opposition proceedings
Sep 3, 2024
(Electronic) Receipt
Sep 3, 2024
Brief communication - Opposition proceedings
Sep 3, 2024
Brief communication - Opposition proceedings
Sep 3, 2024
Letter accompanying subsequently filed items
Sep 3, 2024
Written submission in preparation to/during oral proceedings
Aug 28, 2024
(Electronic) Receipt
Aug 28, 2024
Letter accompanying subsequently filed items
Aug 28, 2024
Written submission in preparation to/during oral proceedings
Aug 22, 2024
Brief communication - Opposition proceedings
Aug 22, 2024
Brief communication - Opposition proceedings
Aug 13, 2024
Brief communication - Opposition proceedings
Aug 7, 2024
(Electronic) Receipt
Aug 7, 2024
Brief communication - Opposition proceedings
Aug 7, 2024
Letter accompanying subsequently filed items
Aug 7, 2024
Letter regarding the opposition procedure (no time limit)
Jul 24, 2024
Brief communication - Opposition proceedings
Jul 24, 2024
Brief communication - Opposition proceedings
Jul 23, 2024
Brief communication - Opposition proceedings
Jul 23, 2024
Brief communication - Opposition proceedings
Jul 22, 2024
Brief communication - Opposition proceedings
Jul 22, 2024
Brief communication - Opposition proceedings
Jul 17, 2024
(Electronic) Receipt
Jul 17, 2024
Citation in opposition procedure - 035
Jul 17, 2024
Citation in opposition procedure - 035
Jul 17, 2024
Citation in opposition procedure - 036
Jul 17, 2024
Consolidated list of cited opposition documents
Jul 17, 2024
Letter accompanying subsequently filed items
Jul 17, 2024
Written submission in preparation to/during oral proceedings
Jul 15, 2024
(Electronic) Receipt
Jul 15, 2024
(Electronic) Receipt
Jul 15, 2024
Auxiliary request during Opposition procedure
Jul 15, 2024
Auxiliary request during Opposition procedure
Jul 15, 2024
Auxiliary request during Opposition procedure - 02
Jul 15, 2024
Auxiliary request during Opposition procedure - 03
Jul 15, 2024
Citation in opposition procedure - 037
Jul 15, 2024
Letter accompanying subsequently filed items
Jul 15, 2024
Letter accompanying subsequently filed items
Jul 15, 2024
Written submission in preparation to/during oral proceedings
Jul 15, 2024
Written submission in preparation to/during oral proceedings
Jun 19, 2024
Brief communication - Opposition proceedings
Jun 19, 2024
Brief communication - Opposition proceedings
Jun 13, 2024
(Electronic) Receipt
Jun 13, 2024
Letter accompanying subsequently filed items
Jun 13, 2024
Written submission in preparation to/during oral proceedings
Oct 30, 2023
Advice of delivery
Oct 27, 2023
(Electronic) Receipt
Oct 27, 2023
Advice of delivery
Oct 27, 2023
Annex to the communication - opposition
Oct 27, 2023
Brief communication - Opposition proceedings
Oct 27, 2023
Brief communication - Opposition proceedings
Oct 27, 2023
Information concerning oral proceedings
Oct 27, 2023
Letter accompanying subsequently filed items
Oct 27, 2023
Summons to attend oral proceedings
Oct 27, 2023
Summons to attend oral proceedings
Oct 27, 2023
Summons to attend oral proceedings
Oct 27, 2023
Transmittal of decision / summons - opposition
Oct 27, 2023
Transmittal of decision / summons - opposition
Oct 27, 2023
Transmittal of decision / summons - opposition
Oct 26, 2023
Advice of delivery
Oct 24, 2023
(Electronic) Receipt
Oct 24, 2023
Advice of delivery
Oct 24, 2023
Letter accompanying subsequently filed items
Oct 24, 2023
Written submission in preparation to/during oral proceedings
Oct 23, 2023
Annex to the communication - opposition
Oct 23, 2023
Information concerning oral proceedings
Oct 23, 2023
Scanned annex to a communication - opposition procedure
Oct 23, 2023
Summons to attend oral proceedings
Oct 23, 2023
Summons to attend oral proceedings
Oct 23, 2023
Summons to attend oral proceedings
Oct 23, 2023
Transmittal of decision / summons - opposition
Oct 23, 2023
Transmittal of decision / summons - opposition
Oct 23, 2023
Transmittal of decision / summons - opposition
Oct 20, 2023
Brief communication - Opposition proceedings
Oct 20, 2023
Brief communication - Opposition proceedings
Oct 18, 2023
Brief communication - Opposition proceedings
Oct 18, 2023
Brief communication - Opposition proceedings
Oct 18, 2023
Communication of amended entries
Oct 16, 2023
(Electronic) Receipt
Oct 16, 2023
(Electronic) Receipt
Oct 16, 2023
Authorisation
Oct 16, 2023
Authorisation
Oct 16, 2023
Letter accompanying subsequently filed items
Oct 16, 2023
Letter accompanying subsequently filed items
Oct 16, 2023
Request concerning representative opponent
Oct 16, 2023
Request concerning representative opponent
Oct 9, 2023
(Electronic) Receipt
Oct 9, 2023
Authorisation
Oct 9, 2023
Letter accompanying subsequently filed items
Oct 9, 2023
Request for transfer of rights - opponent
Oct 9, 2023
Request for transfer of rights - opponent
Oct 6, 2023
Brief communication - Opposition proceedings
Oct 6, 2023
Brief communication - Opposition proceedings
Oct 6, 2023
Communication concerning signing of documents (Legal Division)
Sep 26, 2023
(Electronic) Receipt
Sep 26, 2023
Authorisation
Sep 26, 2023
Letter accompanying subsequently filed items
Sep 26, 2023
Request for change of opponent's representative
Jun 22, 2023
Brief communication - Opposition proceedings
Jun 22, 2023
Brief communication - Opposition proceedings
Jun 22, 2023
Brief communication - Opposition proceedings
Dec 15, 2022
Brief communication - Opposition proceedings
Dec 15, 2022
Brief communication - Opposition proceedings
Dec 9, 2022
(Electronic) Receipt
Dec 9, 2022
Letter regarding the opposition procedure (no time limit)
Nov 10, 2020
Brief communication - Opposition proceedings
Nov 10, 2020
Brief communication - Opposition proceedings
Nov 2, 2020
Brief communication - Opposition proceedings
Nov 2, 2020
Brief communication - Opposition proceedings
Nov 2, 2020
Brief communication - Opposition proceedings
Nov 2, 2020
Brief communication - Opposition proceedings
Oct 30, 2020
(Electronic) Receipt
Oct 30, 2020
Letter accompanying subsequently filed items
Oct 30, 2020
Reply to an examination report in opposition proceedings
Oct 23, 2020
(Electronic) Receipt
Oct 23, 2020
Auxiliary request during Opposition procedure
Oct 23, 2020
Auxiliary request during Opposition procedure - 01
Oct 23, 2020
Letter accompanying subsequently filed items
Oct 23, 2020
Reply to an examination report in opposition proceedings
Oct 21, 2020
(Electronic) Receipt
Oct 21, 2020
Citation in opposition procedure - 034
Oct 21, 2020
Letter accompanying subsequently filed items
Oct 21, 2020
Reply to an examination report in opposition proceedings
Jun 30, 2020
Advice of delivery
Jun 29, 2020
Advice of delivery
Jun 26, 2020
Advice of delivery
Jun 25, 2020
Acknowledgement of a document
Jun 25, 2020
Acknowledgement of a document
Jun 25, 2020
Acknowledgement of a document
Jun 23, 2020
Annex to the communication - opposition
Jun 23, 2020
Communication inviting the parties to file observations
Jun 23, 2020
Internal form - Opposition/addressees
Jun 18, 2020
Communication inviting the parties to file observations
Feb 17, 2020
Brief communication - Opposition proceedings
Feb 17, 2020
Brief communication - Opposition proceedings
Feb 12, 2020
(Electronic) Receipt
Feb 12, 2020
Letter accompanying subsequently filed items
Feb 12, 2020
Written submission in preparation to/during oral proceedings
Nov 19, 2019
Brief communication - Opposition proceedings
Nov 19, 2019
Brief communication - Opposition proceedings
Nov 14, 2019
(Electronic) Receipt
Nov 14, 2019
Amended claims with annotations
Nov 14, 2019
Claims
Nov 14, 2019
Letter accompanying subsequently filed items
Nov 14, 2019
Reply of the patent proprietor to the notice(s) of opposition
Jul 4, 2019
Communication of a notice of opposition and request to file observations
Jul 4, 2019
Notice of further oppositions to opponent(s)
Jul 4, 2019
Notice of further oppositions to opponent(s)
Jun 25, 2019
Communication of a notice of opposition - first information to patent proprietor
Jun 25, 2019
Communication of a notice of opposition - first information to patent proprietor
Jun 14, 2019
(Electronic) Receipt
Jun 14, 2019
(Electronic) Receipt
Jun 14, 2019
Citation in opposition procedure
Jun 14, 2019
Citation in opposition procedure
Jun 14, 2019
Citation in opposition procedure - 001
Jun 14, 2019
Citation in opposition procedure - 002
Jun 14, 2019
Citation in opposition procedure - 003
Jun 14, 2019
Citation in opposition procedure - 004
Jun 14, 2019
Citation in opposition procedure - 005
Jun 14, 2019
Citation in opposition procedure - 006
Jun 14, 2019
Citation in opposition procedure - 007
Jun 14, 2019
Citation in opposition procedure - 008
Jun 14, 2019
Citation in opposition procedure - 009
Jun 14, 2019
Citation in opposition procedure - 010
Jun 14, 2019
Citation in opposition procedure - 011
Jun 14, 2019
Citation in opposition procedure - 012
Jun 14, 2019
Citation in opposition procedure - 013
Jun 14, 2019
Citation in opposition procedure - 014
Jun 14, 2019
Citation in opposition procedure - 015
Jun 14, 2019
Citation in opposition procedure - 016
Jun 14, 2019
Citation in opposition procedure - 017
Jun 14, 2019
Citation in opposition procedure - 018
Jun 14, 2019
Citation in opposition procedure - 019
Jun 14, 2019
Citation in opposition procedure - 020
Jun 14, 2019
Citation in opposition procedure - 021
Jun 14, 2019
Citation in opposition procedure - 022
Jun 14, 2019
Citation in opposition procedure - 023
Jun 14, 2019
Citation in opposition procedure - 024
Jun 14, 2019
Citation in opposition procedure - 025
Jun 14, 2019
Citation in opposition procedure - 026
Jun 14, 2019
Citation in opposition procedure - 027
Jun 14, 2019
Citation in opposition procedure - 028
Jun 14, 2019
Citation in opposition procedure - 029
Jun 14, 2019
Citation in opposition procedure - 030
Jun 14, 2019
Citation in opposition procedure - 031
Jun 14, 2019
Citation in opposition procedure - 032
Jun 14, 2019
Citation in opposition procedure - 033
Jun 14, 2019
Notice of opposition
Jun 14, 2019
Notice of opposition
Jun 14, 2019
Notice of opposition
Jun 14, 2019
Notice of opposition
Jun 14, 2019
Patent document cited during the opposition procedure
Jun 14, 2019
Patent document cited during the opposition procedure
Jun 14, 2019
Priority document
Oct 1, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 23, 2018
Decision to grant a European patent
Aug 2, 2018
(Electronic) Receipt
Aug 2, 2018
French translation of claims
Aug 2, 2018
German translation of the claims
Aug 2, 2018
Letter accompanying subsequently filed items
Apr 13, 2018
Bibliographic data of the European patent application
Apr 13, 2018
Communication about intention to grant a European patent
Apr 13, 2018
Intention to grant (signatures)
Apr 13, 2018
Text intended for grant (clean copy)
Apr 13, 2018
Text intended for grant (version for approval)
Dec 14, 2017
(Electronic) Receipt
Dec 14, 2017
Letter accompanying subsequently filed items
Dec 14, 2017
Reply to communication from the Examining Division
Oct 6, 2017
Annex to the communication
Oct 6, 2017
Communication from the Examining Division
Jul 18, 2017
Letter concerning fees and payments
Jul 18, 2017
Payment of fees and costs
Feb 9, 2017
Communication of amended entries concerning the representative
Oct 28, 2016
Response to enquiry for communication from the Examining Division
Oct 20, 2016
(Electronic) Receipt
Oct 20, 2016
Enquiry as to when a communication from the Examining Division can be expected
Oct 20, 2016
Letter accompanying subsequently filed items
Jul 15, 2016
Letter concerning fees and payments
Jul 15, 2016
Payment of fees and costs
Jul 30, 2015
Payment of fees and costs
Jul 30, 2015
Payment of fees and costs
Jul 29, 2014
Payment of fees and costs
Jul 29, 2014
Payment of fees and costs
Apr 18, 2011
(Electronic) Receipt
Apr 18, 2011
Amended claims with annotations
Apr 18, 2011
Claims
Apr 18, 2011
Description
Apr 18, 2011
Letter accompanying subsequently filed items
Apr 18, 2011
Reply to communication from the Examining Division
Dec 8, 2010
Annex to the communication
Dec 8, 2010
Communication from the Examining Division
Nov 25, 2010
(Electronic) Receipt
Nov 25, 2010
Amended claims with annotations
Nov 25, 2010
Claims
Nov 25, 2010
Letter accompanying subsequently filed items
Nov 25, 2010
Reply to communication from the Examining Division
Oct 7, 2010
CDS Clean up - amended data concerning the representative for the applicant
Aug 3, 2010
Annex to the communication
Aug 3, 2010
Communication from the Examining Division
Mar 25, 2010
(Electronic) Receipt
Mar 25, 2010
Amended claims with annotations
Mar 25, 2010
Claims
Mar 25, 2010
Letter accompanying subsequently filed items
Mar 25, 2010
Reply to communication from the Examining Division
Jan 20, 2010
Grant of extension of time limit (examination procedure)
Jan 11, 2010
(Electronic) Receipt
Jan 11, 2010
Letter accompanying subsequently filed items
Jan 11, 2010
Request for extension of time limit to communication from the Examining Division
Sep 16, 2009
Annex to the communication
Sep 16, 2009
Communication from the Examining Division
Feb 25, 2009
Communication regarding possible amendment of claims/payment of claims fees
Feb 25, 2009
Notification on forthcoming publication of bibliographic data
Jan 27, 2009
Copy of the international preliminary report on patentability
Dec 11, 2008
(Electronic) Receipt
Dec 11, 2008
Request for entry into the European phase
Nov 20, 2008
Information on entry into European phase
Feb 11, 2008
Priority document (electronically transmitted)
Jan 17, 2008
Copy of the international search report
Jan 17, 2008
Published international application - A1
Jul 12, 2007
Abstract
Jul 12, 2007
Claims
Jul 12, 2007
Description
Jul 12, 2007
Priority document (RO-procedure)

EP2037758

PURAC BIOCHEM

Application Number: EP07787452A
Filing Date: Jul 12, 2007
Status: Granted And Under Opposition; Aug 17, 2018
Publication Date: Sep 19, 2018
External Links: Slate, Register , Google Patents

IP Verse

Partially Neutralized Acid Coated Food-Grade Particles

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP2037758