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Methods For Producing Thiol Compounds And Sulfide Compounds Using Diphenylamine Or A Phenol Compound

Patent No. EP3510018 (titled "Methods For Producing Thiol Compounds And Sulfide Compounds Using Diphenylamine Or A Phenol Compound") was filed by Chevron Phillips Chemical LP on Sep 7, 2017. The application was issued on Nov 1, 2023.

Patent Summary

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Patent Oppositions

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
STEINBACH	Jul 26, 2021	ZIMMERMANN & PARTNER PATENTANWALTE MBB

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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Aug 11, 2025
Communication of the registration of a transfer or change of name and/or address
Oct 6, 2023
Decision to maintain the European patent in amended form
Oct 6, 2023
Decision to maintain the European patent in amended form
Sep 29, 2023
Termination of the opposition proceedings with maintenance of patent
Sep 21, 2023
(Electronic) Receipt
Sep 21, 2023
French translation of claims
Sep 21, 2023
German translation of the claims
Sep 21, 2023
Letter accompanying subsequently filed items
Jun 30, 2023
Communication of bibliographic data
Jun 23, 2023
Maintenance of the patent with the documents specified in the final decision
Jun 21, 2023
Refund of fees
Jun 20, 2023
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Jun 20, 2023
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Jun 14, 2023
(Electronic) Receipt
Jun 14, 2023
Letter accompanying subsequently filed items
Jun 14, 2023
Withdrawal of an appeal
May 16, 2023
F3204 Communication of the file number to the parties
May 16, 2023
F3204 Communication of the file number to the parties
Apr 26, 2023
(Electronic) Receipt
Apr 26, 2023
(Electronic) Receipt
Apr 26, 2023
Annexes (other than cited documents) regarding appeal procedure
Apr 26, 2023
Letter accompanying subsequently filed items
Apr 26, 2023
Letter accompanying subsequently filed items
Apr 26, 2023
Notice of appeal
Mar 6, 2023
Advice of delivery
Feb 21, 2023
Advice of delivery
Feb 21, 2023
Advice of delivery
Feb 16, 2023
Decision of the Opposition Division and instruction
Feb 16, 2023
Druckexemplar in opposition procedure
Feb 16, 2023
Grounds for the decision (Annex) - opposition
Feb 16, 2023
Interlocutory decision in opposition proceedings
Feb 16, 2023
Interlocutory decision in opposition proceedings
Feb 16, 2023
Means of redress
Feb 16, 2023
Scanned annex to a communication - opposition procedure
Feb 16, 2023
Transmittal of decision / summons - opposition
Feb 16, 2023
Transmittal of decision / summons - opposition
Feb 15, 2023
Annex to the communication - opposition
Feb 15, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 15, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 15, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Feb 15, 2023
Provision of a copy of the minutes - opposition procedure
Feb 15, 2023
Provision of a copy of the minutes - opposition procedure
Feb 15, 2023
Scanned annex to a communication - opposition procedure
Feb 15, 2023
Scanned annex to a communication - opposition procedure
Feb 15, 2023
Scanned annex to a communication - opposition procedure
Feb 15, 2023
Scanned annex to a communication - opposition procedure
Feb 15, 2023
Scanned annex to a communication - opposition procedure
Feb 15, 2023
Scanned annex to a communication - opposition procedure
Feb 15, 2023
Scanned annex to a communication - opposition procedure
Feb 15, 2023
Scanned annex to a communication - opposition procedure
Feb 15, 2023
Scanned annex to a communication - opposition procedure
Feb 15, 2023
Scanned annex to a communication - opposition procedure
Jan 24, 2023
Citation in opposition procedure - 016
Jan 24, 2023
Citation in opposition procedure - 021
Jan 24, 2023
Citation in opposition procedure - 022
Jan 24, 2023
Consolidated list of cited opposition documents
Jan 24, 2023
Information about the result of oral proceedings
Jan 23, 2023
(Electronic) Receipt
Jan 23, 2023
Brief communication - Opposition proceedings
Jan 23, 2023
Letter accompanying subsequently filed items
Jan 19, 2023
(Electronic) Receipt
Jan 19, 2023
Citation in opposition procedure - 020
Jan 19, 2023
Letter accompanying subsequently filed items
Jan 19, 2023
Written submission in preparation to/during oral proceedings
Dec 21, 2022
(Electronic) Receipt
Dec 20, 2022
Brief communication - Opposition proceedings
Dec 15, 2022
(Electronic) Receipt
Dec 15, 2022
Any annexes (other than citation) to an opposition letter
Dec 15, 2022
Any annexes (other than citation) to an opposition letter
Dec 1, 2022
Brief communication - Opposition proceedings
Nov 28, 2022
Brief communication - Opposition proceedings
Nov 28, 2022
Notification concerning the date of oral proceedings
Nov 28, 2022
Notification concerning the date of oral proceedings
Nov 24, 2022
(Electronic) Receipt
Nov 24, 2022
Letter accompanying subsequently filed items
Nov 24, 2022
Request for interpreters during oral proceedings
Nov 22, 2022
(Electronic) Receipt
Nov 22, 2022
(Electronic) Receipt
Nov 22, 2022
Citation in opposition procedure - 017
Nov 22, 2022
Citation in opposition procedure - 018
Nov 22, 2022
Citation in opposition procedure - 019
Nov 22, 2022
Letter accompanying subsequently filed items
Nov 22, 2022
Letter accompanying subsequently filed items
Nov 22, 2022
Request for interpreters during oral proceedings
Nov 22, 2022
Written submission in preparation to/during oral proceedings
Sep 28, 2022
Document concerning representation
May 13, 2022
Advice of delivery
May 9, 2022
Advice of delivery
May 6, 2022
Annex to the communication - opposition
May 6, 2022
Information concerning oral proceedings
May 6, 2022
Summons to attend oral proceedings
May 6, 2022
Summons to attend oral proceedings
May 6, 2022
Transmittal of decision / summons - opposition
May 6, 2022
Transmittal of decision / summons - opposition
Dec 21, 2021
Brief communication - Opposition proceedings
Dec 15, 2021
(Electronic) Receipt
Dec 15, 2021
Auxiliary request during Opposition procedure
Dec 15, 2021
Auxiliary request during Opposition procedure
Dec 15, 2021
Auxiliary request during Opposition procedure
Dec 15, 2021
Auxiliary request during Opposition procedure
Dec 15, 2021
Auxiliary request during Opposition procedure
Dec 15, 2021
Auxiliary request during Opposition procedure
Dec 15, 2021
Auxiliary request during Opposition procedure - 01
Dec 15, 2021
Auxiliary request during Opposition procedure - 02
Dec 15, 2021
Auxiliary request during Opposition procedure - 03
Dec 15, 2021
Auxiliary request during Opposition procedure - 04
Dec 15, 2021
Auxiliary request during Opposition procedure - 05
Dec 15, 2021
Auxiliary request during Opposition procedure - 06
Dec 15, 2021
Citation in opposition procedure - 014
Dec 15, 2021
Citation in opposition procedure - 015
Dec 15, 2021
Citation in opposition procedure - 016
Dec 15, 2021
Letter accompanying subsequently filed items
Dec 15, 2021
Main request during Opposition procedure
Dec 15, 2021
Main request during Opposition procedure
Dec 15, 2021
Reply of the patent proprietor to the notice(s) of opposition
Nov 9, 2021
(Electronic) Receipt
Nov 9, 2021
Letter accompanying subsequently filed items
Aug 11, 2021
Communication of a notice of opposition and request to file observations
Aug 11, 2021
Notice of further oppositions to opponent(s)
Jul 30, 2021
Communication of a notice of opposition - first information to patent proprietor
Jul 26, 2021
(Electronic) Receipt
Jul 26, 2021
Citation in opposition procedure - 001
Jul 26, 2021
Citation in opposition procedure - 002
Jul 26, 2021
Citation in opposition procedure - 003
Jul 26, 2021
Citation in opposition procedure - 004
Jul 26, 2021
Citation in opposition procedure - 005
Jul 26, 2021
Citation in opposition procedure - 006
Jul 26, 2021
Citation in opposition procedure - 007
Jul 26, 2021
Citation in opposition procedure - 008
Jul 26, 2021
Citation in opposition procedure - 009
Jul 26, 2021
Citation in opposition procedure - 009
Jul 26, 2021
Citation in opposition procedure - 009
Jul 26, 2021
Citation in opposition procedure - 009
Jul 26, 2021
Citation in opposition procedure - 010
Jul 26, 2021
Citation in opposition procedure - 011
Jul 26, 2021
Citation in opposition procedure - 012
Jul 26, 2021
Citation in opposition procedure - 013
Jul 26, 2021
Notice of opposition
Jul 26, 2021
Notice of opposition
Nov 9, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Oct 1, 2020
Decision to grant a European patent
Jul 30, 2020
(Electronic) Receipt
Jul 30, 2020
French translation of claims
Jul 30, 2020
German translation of the claims
Jul 30, 2020
Letter accompanying subsequently filed items
Apr 3, 2020
Bibliographic data of the European patent application
Apr 3, 2020
Communication about intention to grant a European patent
Apr 3, 2020
Intention to grant (signatures)
Apr 3, 2020
Text intended for grant (clean copy)
Apr 3, 2020
Text intended for grant (version for approval)
Mar 23, 2020
Examination started
Nov 4, 2019
(Electronic) Receipt
Nov 4, 2019
Amended claims filed after receipt of (European) search report
Nov 4, 2019
Amended claims with annotations
Nov 4, 2019
Amended description filed after receipt of (European) search report
Nov 4, 2019
Amended description with annotations
Nov 4, 2019
Amendments received before examination
Nov 4, 2019
Letter accompanying subsequently filed items
Jun 19, 2019
Notification on forthcoming publication of bibliographic data
Apr 25, 2019
Submission concerning representation
Apr 23, 2019
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Apr 17, 2019
Communication to designated inventor
Mar 26, 2019
Copy of the international preliminary report on patentability
Mar 20, 2019
(Electronic) Receipt
Mar 20, 2019
Request for entry into the European phase
Jan 18, 2019
Information on entry into European phase
Apr 4, 2018
Priority document (electronically transmitted)
Mar 15, 2018
Copy of the international search report
Mar 15, 2018
Published international application - A1
Nov 20, 2017
ISR: cited documents
Nov 17, 2017
Written opinion of the ISA, boxes No. I to VIII
Nov 17, 2017
Written opinion of the ISA, cover sheet
Nov 17, 2017
Written opinion of the ISA, supplemental box
Oct 31, 2017
Notification of receipt of Search copy
Sep 22, 2017
Abstract
Sep 22, 2017
Annex
Sep 22, 2017
Claims
Sep 22, 2017
Description
Sep 22, 2017
Drawings
Sep 22, 2017
Fee calculation sheet for an international application
Sep 22, 2017
Invitation to Correct Defects in the International Application (copy for ISA/EP)
Sep 22, 2017
Notification Concerning Payment of Prescribed Fees (copy for ISA/EP)
Sep 22, 2017
Notification of the International Application Number and of the International Filing Date (copy for ISA/EP)
Sep 22, 2017
Request form for international application (copy for ISA/EP)

EP3510018

CHEVRON PHILLIPS CHEMICAL LP

Application Number: EP17785062A
Filing Date: Sep 7, 2017
Status: Patent Maintained As Amended; Sep 29, 2023
Publication Date: Nov 1, 2023
External Links: Slate, Register , Google Patents