Dispersant Effect On Aluminum Pigments

Patent No. EP3325559 (titled "Dispersant Effect On Aluminum Pigments") was filed by SUN Chemical on Jul 22, 2016. The application was issued on May 27, 2020.

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
ECKART	Feb 24, 2021	STRYCH
SCHLENK METALLIC PIGMENTS	Feb 24, 2021	ABITZ & PARTNER

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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Sep 12, 2025
Decision of the Board of Appeal
Sep 12, 2025
Decision of the Board of Appeal
Sep 12, 2025
F3032 Notification(s) of the decision
Sep 12, 2025
F3032 Notification(s) of the decision
Sep 12, 2025
F3032 Notification(s) of the decision
Jul 1, 2025
F3013 Oral Proceedings: Forwarding minutes
Jul 1, 2025
F3013 Oral Proceedings: Forwarding minutes
Jul 1, 2025
F3013 Oral Proceedings: Forwarding minutes
Jul 1, 2025
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Jul 1, 2025
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
May 22, 2025
F3018 Oral proceedings: Confirmation interpreters
May 22, 2025
F3018 Oral proceedings: Confirmation interpreters
May 22, 2025
F3018 Oral proceedings: Confirmation interpreters
May 22, 2025
F3345 Forwarding of submissions to parties
May 22, 2025
F3345 Forwarding of submissions to parties
May 19, 2025
(Electronic) Receipt
May 19, 2025
Annexes (other than cited documents) regarding appeal procedure
May 19, 2025
Letter accompanying subsequently filed items
May 19, 2025
Letter dealing with oral proceedings during the appeal procedure
Apr 29, 2025
F3345 Forwarding of submissions to parties
Apr 29, 2025
F3345 Forwarding of submissions to parties
Apr 24, 2025
(Electronic) Receipt
Apr 24, 2025
Letter accompanying subsequently filed items
Apr 24, 2025
Request for interpreters during oral proceedings
Jul 4, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jul 4, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jul 4, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jun 4, 2024
Oral proceedings: change of venue
Jun 4, 2024
Oral proceedings: change of venue
Jun 4, 2024
Oral proceedings: change of venue
Jun 3, 2024
F3345 Forwarding of submissions to parties
Jun 3, 2024
F3345 Forwarding of submissions to parties
May 28, 2024
(Electronic) Receipt
May 28, 2024
Letter accompanying subsequently filed items
May 28, 2024
Letter dealing with oral proceedings during the appeal procedure
May 10, 2024
F3345 Forwarding of submissions to parties
May 10, 2024
F3345 Forwarding of submissions to parties
May 6, 2024
(Electronic) Receipt
May 6, 2024
Letter dealing with oral proceedings during the appeal procedure
Apr 30, 2024
F3011.1 Oral Proceedings: summons
Apr 30, 2024
F3011.1 Oral Proceedings: summons
Apr 30, 2024
F3011.1 Oral Proceedings: summons
Apr 25, 2024
F3010 Oral proceedings: order for summons
Apr 19, 2024
Composition of the board (T)
Jan 10, 2024
Letter accompanying subsequently filed items
Dec 19, 2023
Refund of fees
Dec 15, 2023
F3345 Forwarding of submissions to parties
Dec 15, 2023
F3345 Forwarding of submissions to parties
Dec 12, 2023
(Electronic) Receipt
Dec 12, 2023
Letter accompanying subsequently filed items
Dec 12, 2023
Withdrawal of an appeal
Nov 28, 2023
F3345 Forwarding of submissions to parties
Nov 28, 2023
F3345 Forwarding of submissions to parties
Nov 23, 2023
(Electronic) Receipt
Nov 23, 2023
Letter accompanying subsequently filed items
Nov 23, 2023
Letter relating to Appeal Procedure
Oct 24, 2023
Letter accompanying subsequently filed items
Oct 24, 2023
Request for change of opponent's representative
Jul 4, 2023
Letter accompanying subsequently filed items
May 26, 2023
F3345 Forwarding of submissions to parties
May 26, 2023
F3345 Forwarding of submissions to parties
May 23, 2023
(Electronic) Receipt
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Amended claims with annotations
May 23, 2023
Annexes (other than cited documents) regarding appeal procedure
May 23, 2023
Annexes (other than cited documents) regarding appeal procedure
May 23, 2023
Annexes (other than cited documents) regarding appeal procedure
May 23, 2023
Auxiliary request during appeals procedure - 01
May 23, 2023
Auxiliary request during appeals procedure - 02
May 23, 2023
Auxiliary request during appeals procedure - 03
May 23, 2023
Auxiliary request during appeals procedure - 04
May 23, 2023
Auxiliary request during appeals procedure - 05
May 23, 2023
Auxiliary request during appeals procedure - 06
May 23, 2023
Auxiliary request during appeals procedure - 07
May 23, 2023
Auxiliary request during appeals procedure - 08
May 23, 2023
Auxiliary request during appeals procedure - 09
May 23, 2023
Auxiliary request during appeals procedure - 10
May 23, 2023
Auxiliary request during appeals procedure - 11
May 23, 2023
Auxiliary request during appeals procedure - 12
May 23, 2023
Auxiliary request during appeals procedure - 13
May 23, 2023
Auxiliary request during appeals procedure - 14
May 23, 2023
Auxiliary request during appeals procedure - 15
May 23, 2023
Auxiliary request during appeals procedure - 16
May 23, 2023
Citation in appeal procedure - 031
May 23, 2023
Citation in appeal procedure - 032
May 23, 2023
Letter accompanying subsequently filed items
May 23, 2023
Letter relating to Appeal Procedure
May 23, 2023
Main request during appeals procedure
May 23, 2023
Reply to appeal
Jan 13, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Jan 13, 2023
F3345 Forwarding of submissions to parties
Jan 13, 2023
F3345 Forwarding of submissions to parties
Jan 9, 2023
(Electronic) Receipt
Jan 9, 2023
Citation in appeal procedure - 024
Jan 9, 2023
Citation in appeal procedure - 025
Jan 9, 2023
Citation in appeal procedure - 026
Jan 9, 2023
Letter accompanying subsequently filed items
Jan 9, 2023
Statement of grounds of appeal
Dec 27, 2022
(Electronic) Receipt
Dec 27, 2022
Citation in appeal procedure - 001
Dec 27, 2022
Citation in appeal procedure - 002
Dec 27, 2022
Citation in appeal procedure - 003
Dec 27, 2022
Citation in appeal procedure - 003
Dec 27, 2022
Citation in appeal procedure - 004
Dec 27, 2022
Citation in appeal procedure - 004
Dec 27, 2022
Citation in appeal procedure - 005
Dec 27, 2022
Citation in appeal procedure - 005
Dec 27, 2022
Citation in appeal procedure - 006
Dec 27, 2022
Citation in appeal procedure - 007
Dec 27, 2022
Citation in appeal procedure - 008
Dec 27, 2022
Citation in appeal procedure - 009
Dec 27, 2022
Citation in appeal procedure - 010
Dec 27, 2022
Citation in appeal procedure - 011
Dec 27, 2022
Citation in appeal procedure - 012
Dec 27, 2022
Citation in appeal procedure - 012
Dec 27, 2022
Citation in appeal procedure - 013
Dec 27, 2022
Citation in appeal procedure - 014
Dec 27, 2022
Citation in appeal procedure - 015
Dec 27, 2022
Citation in appeal procedure - 021
Dec 27, 2022
Citation in appeal procedure - 024
Dec 27, 2022
Citation in appeal procedure - 027
Dec 27, 2022
Citation in appeal procedure - 028
Dec 27, 2022
Citation in appeal procedure - 029
Dec 27, 2022
Citation in appeal procedure - 030
Dec 27, 2022
Letter accompanying subsequently filed items
Dec 27, 2022
Statement of grounds of appeal
Nov 10, 2022
F3204 Communication of the file number to the parties
Nov 10, 2022
F3204 Communication of the file number to the parties
Nov 10, 2022
F3204 Communication of the file number to the parties
Nov 8, 2022
F3204 Communication of the file number to the parties
Nov 8, 2022
F3204 Communication of the file number to the parties
Nov 8, 2022
F3204 Communication of the file number to the parties
Nov 7, 2022
(Electronic) Receipt
Nov 7, 2022
Annex to the communication - opposition
Nov 7, 2022
Annexes (other than cited documents) regarding appeal procedure
Nov 7, 2022
Brief communication - Opposition proceedings
Nov 7, 2022
Brief communication - Opposition proceedings
Nov 7, 2022
Brief communication - Opposition proceedings
Nov 7, 2022
Letter accompanying subsequently filed items
Nov 7, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 7, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 7, 2022
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 7, 2022
Notice of appeal
Nov 7, 2022
Provision of a copy of the minutes - opposition procedure
Nov 7, 2022
Provision of a copy of the minutes - opposition procedure
Nov 7, 2022
Provision of a copy of the minutes - opposition procedure
Nov 7, 2022
Scanned annex to a communication - opposition procedure
Nov 3, 2022
(Electronic) Receipt
Nov 3, 2022
Letter accompanying subsequently filed items
Nov 3, 2022
Notice of appeal
Oct 5, 2022
Brief communication - Opposition proceedings
Oct 5, 2022
Brief communication - Opposition proceedings
Sep 28, 2022
(Electronic) Receipt
Sep 28, 2022
Letter accompanying subsequently filed items
Sep 28, 2022
Letter regarding the opposition procedure (no time limit)
Sep 8, 2022
Advice of delivery
Sep 7, 2022
Advice of delivery
Sep 6, 2022
Advice of delivery
Sep 5, 2022
Annex to the communication - opposition
Sep 5, 2022
Decision of the Opposition Division and instruction
Sep 5, 2022
Druckexemplar in opposition procedure
Sep 5, 2022
Grounds for the decision (Annex) - opposition
Sep 5, 2022
Interlocutory decision in opposition proceedings
Sep 5, 2022
Interlocutory decision in opposition proceedings
Sep 5, 2022
Interlocutory decision in opposition proceedings
Sep 5, 2022
Means of redress
Sep 5, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Sep 5, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Sep 5, 2022
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Sep 5, 2022
Provision of a copy of the minutes - opposition procedure
Sep 5, 2022
Provision of a copy of the minutes - opposition procedure
Sep 5, 2022
Provision of a copy of the minutes - opposition procedure
Sep 5, 2022
Scanned annex to a communication - opposition procedure
Sep 5, 2022
Transmittal of decision / summons - opposition
Sep 5, 2022
Transmittal of decision / summons - opposition
Sep 5, 2022
Transmittal of decision / summons - opposition
Jun 8, 2022
Information about the result of oral proceedings
Jun 2, 2022
Communication for party to proceedings/third party
Jun 2, 2022
Communication for party to proceedings/third party
May 25, 2022
(Electronic) Receipt
May 25, 2022
Citation in opposition procedure - 022
May 25, 2022
Citation in opposition procedure - 023
May 25, 2022
Consolidated list of cited opposition documents
May 25, 2022
Letter accompanying subsequently filed items
May 25, 2022
Written submission in preparation to/during oral proceedings
Apr 21, 2022
Notification concerning the date of oral proceedings
Apr 21, 2022
Notification concerning the date of oral proceedings
Apr 21, 2022
Notification concerning the date of oral proceedings
Apr 20, 2022
Communication for party to proceedings/third party
Apr 20, 2022
Communication for party to proceedings/third party
Apr 11, 2022
Brief communication - Opposition proceedings
Apr 11, 2022
Brief communication - Opposition proceedings
Apr 8, 2022
(Electronic) Receipt
Apr 8, 2022
Any annexes (other than citation) to an opposition letter
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure
Apr 8, 2022
Auxiliary request during Opposition procedure - 02
Apr 8, 2022
Auxiliary request during Opposition procedure - 03
Apr 8, 2022
Auxiliary request during Opposition procedure - 04
Apr 8, 2022
Auxiliary request during Opposition procedure - 05
Apr 8, 2022
Auxiliary request during Opposition procedure - 06
Apr 8, 2022
Auxiliary request during Opposition procedure - 07
Apr 8, 2022
Auxiliary request during Opposition procedure - 08
Apr 8, 2022
Auxiliary request during Opposition procedure - 09
Apr 8, 2022
Auxiliary request during Opposition procedure - 10
Apr 8, 2022
Auxiliary request during Opposition procedure - 11
Apr 8, 2022
Auxiliary request during Opposition procedure - 12
Apr 8, 2022
Auxiliary request during Opposition procedure - 13
Apr 8, 2022
Auxiliary request during Opposition procedure - 14
Apr 8, 2022
Auxiliary request during Opposition procedure - 15
Apr 8, 2022
Auxiliary request during Opposition procedure - 16
Apr 8, 2022
Auxiliary request during Opposition procedure - 17
Apr 8, 2022
Citation in opposition procedure - 016
Apr 8, 2022
Citation in opposition procedure - 017
Apr 8, 2022
Citation in opposition procedure - 018
Apr 8, 2022
Citation in opposition procedure - 019
Apr 8, 2022
Citation in opposition procedure - 020
Apr 8, 2022
Citation in opposition procedure - 021
Apr 8, 2022
Letter accompanying subsequently filed items
Apr 8, 2022
Written submission in preparation to/during oral proceedings
Apr 5, 2022
Brief communication - Opposition proceedings
Apr 5, 2022
Brief communication - Opposition proceedings
Apr 4, 2022
(Electronic) Receipt
Apr 4, 2022
Letter accompanying subsequently filed items
Apr 4, 2022
Request for interpreters during oral proceedings
Mar 31, 2022
(Electronic) Receipt
Mar 31, 2022
Any annexes (other than citation) to an opposition letter
Mar 31, 2022
Letter accompanying subsequently filed items
Mar 31, 2022
Request for interpreters during oral proceedings
Mar 1, 2022
Advice of delivery
Nov 24, 2021
Advice of delivery
Nov 24, 2021
Advice of delivery
Nov 22, 2021
Annex to the communication - opposition
Nov 22, 2021
Information concerning oral proceedings
Nov 22, 2021
Summons to attend oral proceedings
Nov 22, 2021
Summons to attend oral proceedings
Nov 22, 2021
Summons to attend oral proceedings
Nov 22, 2021
Transmittal of decision / summons - opposition
Nov 22, 2021
Transmittal of decision / summons - opposition
Nov 22, 2021
Transmittal of decision / summons - opposition
Nov 4, 2021
Brief communication - Opposition proceedings
Nov 4, 2021
Brief communication - Opposition proceedings
Oct 29, 2021
(Electronic) Receipt
Oct 29, 2021
Letter accompanying subsequently filed items
Oct 29, 2021
Reply from the opponent to submission of proprietor
Aug 2, 2021
Brief communication - Opposition proceedings
Aug 2, 2021
Brief communication - Opposition proceedings
Jul 27, 2021
(Electronic) Receipt
Jul 27, 2021
Auxiliary request during Opposition procedure
Jul 27, 2021
Auxiliary request during Opposition procedure - 01
Jul 27, 2021
Letter accompanying subsequently filed items
Jul 27, 2021
Main request during Opposition procedure
Jul 27, 2021
Main request during Opposition procedure
Jul 27, 2021
Reply of the patent proprietor to the notice(s) of opposition
Jul 27, 2021
Reply of the patent proprietor to the notice(s) of opposition
Mar 18, 2021
Communication of a notice of opposition and request to file observations
Mar 18, 2021
Notice of further oppositions to opponent(s)
Mar 3, 2021
Communication of a notice of opposition - first information to patent proprietor
Feb 26, 2021
(Electronic) Receipt
Feb 26, 2021
Citation in opposition procedure - 010
Feb 26, 2021
Citation in opposition procedure - 011
Feb 26, 2021
Citation in opposition procedure - 012
Feb 26, 2021
Citation in opposition procedure - 012
Feb 26, 2021
Citation in opposition procedure - 013
Feb 26, 2021
Citation in opposition procedure - 014
Feb 26, 2021
Citation in opposition procedure - 015
Feb 26, 2021
Notice of opposition
Feb 26, 2021
Notice of opposition
Feb 26, 2021
Patent document cited during the opposition procedure
Feb 26, 2021
Patent document cited during the opposition procedure
Feb 26, 2021
Translation of the evidence during Opposition procedure
Feb 24, 2021
(Electronic) Receipt
Feb 24, 2021
Citation in opposition procedure - 001
Feb 24, 2021
Citation in opposition procedure - 002
Feb 24, 2021
Citation in opposition procedure - 003
Feb 24, 2021
Citation in opposition procedure - 003
Feb 24, 2021
Citation in opposition procedure - 004
Feb 24, 2021
Citation in opposition procedure - 004
Feb 24, 2021
Citation in opposition procedure - 005
Feb 24, 2021
Citation in opposition procedure - 005
Feb 24, 2021
Citation in opposition procedure - 006
Feb 24, 2021
Citation in opposition procedure - 007
Feb 24, 2021
Citation in opposition procedure - 008
Feb 24, 2021
Citation in opposition procedure - 009
Feb 24, 2021
International publication (Pamphlet)
Feb 24, 2021
Notice of opposition
Feb 24, 2021
Notice of opposition
Jun 8, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
May 4, 2020
Decision to grant a European patent
Apr 16, 2020
(Electronic) Receipt
Apr 16, 2020
Filing of the translations of the claims
Apr 16, 2020
French translation of claims
Apr 16, 2020
German translation of the claims
Apr 16, 2020
Letter accompanying subsequently filed items
Dec 6, 2019
Bibliographic data of the European patent application
Dec 6, 2019
Communication about intention to grant a European patent
Dec 6, 2019
Intention to grant (signatures)
Dec 6, 2019
Text intended for grant (clean copy)
Dec 6, 2019
Text intended for grant (version for approval)
May 23, 2019
Communication confirming withdrawal from representation
May 23, 2019
Communication of amended entries concerning the representative
May 17, 2019
Submission concerning change of applicant's representative
May 9, 2019
Submission concerning change of applicant's representative
May 8, 2019
Submission concerning change of applicant's representative
Dec 14, 2018
Amended claims with annotations
Dec 14, 2018
Amended description with annotations
Dec 14, 2018
Claims
Dec 14, 2018
Description
Dec 14, 2018
Reply to communication from the Examining Division
Nov 6, 2018
Annex to the communication
Nov 6, 2018
Communication from the Examining Division
Oct 26, 2018
Examination started
Sep 19, 2018
Refund of fees
Sep 10, 2018
Amended claims filed after receipt of (European) search report
Sep 10, 2018
Amended claims with annotations
Sep 10, 2018
Amendments received before examination
May 3, 2018
Notification on forthcoming publication of bibliographic data
Mar 6, 2018
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Mar 2, 2018
Communication to designated inventor
Mar 2, 2018
Communication to designated inventor
Mar 2, 2018
Communication to designated inventor
Feb 12, 2018
Copy of the international preliminary report on patentability
Jan 19, 2018
(Electronic) Receipt
Jan 19, 2018
Request for entry into the European phase
Dec 6, 2017
Information on entry into European phase
Feb 22, 2017
Priority document (electronically transmitted)
Feb 2, 2017
Copy of the international search report
Feb 2, 2017
Published international application - A1
Oct 17, 2016
ISR: cited documents
Oct 14, 2016
Written opinion of the ISA, boxes No. I to VIII
Oct 14, 2016
Written opinion of the ISA, cover sheet
Oct 14, 2016
Written opinion of the ISA, supplemental box
Oct 11, 2016
Notification relating to declaration under Rule 4.17 PCT (copy for ISA/EP)
Oct 10, 2016
Annex
Oct 10, 2016
Incoming letter related to ISA procedure
Oct 10, 2016
Substitute sheet (Rule 26) - request form for ISA/EP
Oct 5, 2016
Notification of the recording of a change
Oct 5, 2016
Notification of the recording of a change
Aug 26, 2016
Notification of receipt of Search copy
Aug 11, 2016
Abstract
Aug 11, 2016
Annex
Aug 11, 2016
Claims
Aug 11, 2016
Description
Aug 11, 2016
Fee calculation sheet for an international application
Aug 11, 2016
Invitation to Correct Defects in the International Application (copy for ISA/EP)
Aug 11, 2016
Notification Concerning Payment of Prescribed Fees (copy for ISA/EP)
Aug 11, 2016
Notification of the International Application Number and of the International Filing Date (copy for ISA/EP)
Aug 11, 2016
Request form for international application (copy for ISA/EP)

EP3325559

SUN CHEMICAL

Application Number: EP16751059A
Filing Date: Jul 22, 2016
Status: Revoked; Sep 15, 2025
Publication Date: May 27, 2020
External Links: Slate, Register , Google Patents

IP Verse

Dispersant Effect On Aluminum Pigments

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP3325559