The weekly litigation news digest is live. Subscribe now

IP Verse

Methods For Producing Thiol Compounds And Sulfide Compounds Using Diphenylamine Or A Phenol Compound - EP3510018

The patent EP3510018 was granted to Chevron Phillips Chemical LP on Nov 1, 2023. The application was originally filed on Sep 7, 2017 under application number EP17785062A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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

Patent Summary

Patent Family

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	Opposition Status
Get instant alerts for new oppositions and patent status changes
STEINBACH	Jul 26, 2021	ZIMMERMANN & PARTNER PATENTANWALTE MBB	ADMISSIBLE

Patent Citations (11) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation Phase	Publication Number
DESCRIPTION	US7989655
INTERNATIONAL-SEARCH-REPORT	GB895993
INTERNATIONAL-SEARCH-REPORT	US2012035291
INTERNATIONAL-SEARCH-REPORT	US4135047
INTERNATIONAL-SEARCH-REPORT	US4140604
INTERNATIONAL-SEARCH-REPORT	US4443310
OPPOSITION	US2012035291
OPPOSITION	US2865965
OPPOSITION	US3567608
OPPOSITION	US4135047
OPPOSITION	US4140604

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

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