Catalyst Composition For Producing High Mz/Mw Polyolefins

Patent No. EP2560999 (titled "Catalyst Composition For Producing High Mz/Mw Polyolefins") was filed by Chevron Phillips Chemical LP on Apr 15, 2011. The application was issued on Jun 25, 2025.

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
BASELL POLYOLEFINE	Dec 14, 2018	LYONDELLBASELL
THE DOW CHEMICAL	Dec 13, 2018	BOULT WADE TENNANT

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 30, 2025
Decision to maintain the European patent in amended form
May 30, 2025
Decision to maintain the European patent in amended form
May 30, 2025
Decision to maintain the European patent in amended form
May 21, 2025
(Electronic) Receipt
May 21, 2025
French translation of claims
May 21, 2025
German translation of the claims
May 21, 2025
Letter accompanying subsequently filed items
Feb 26, 2025
Communication to opponent concerning maintenance
Feb 26, 2025
Communication to opponent concerning maintenance
Feb 26, 2025
Communication with request to file translations
Feb 20, 2025
Maintenance of the patent with the documents specified in the final decision
Jan 24, 2024
Advice of delivery
Jan 22, 2024
Advice of delivery
Jan 22, 2024
Decision of the Opposition Division and instruction
Jan 22, 2024
Druckexemplar in opposition procedure
Jan 22, 2024
Grounds for the decision (Annex) - opposition
Jan 22, 2024
Interlocutory decision in opposition proceedings
Jan 22, 2024
Interlocutory decision in opposition proceedings
Jan 22, 2024
Interlocutory decision in opposition proceedings
Jan 22, 2024
Means of redress
Jan 22, 2024
Transmittal of decision / summons - opposition
Jan 22, 2024
Transmittal of decision / summons - opposition
Jan 22, 2024
Transmittal of decision / summons - opposition
Dec 8, 2023
Brief communication - Opposition proceedings
Dec 8, 2023
Brief communication - Opposition proceedings
Nov 30, 2023
(Electronic) Receipt
Nov 30, 2023
Amended description with annotations
Nov 30, 2023
Description
Nov 30, 2023
Letter accompanying subsequently filed items
Nov 30, 2023
Reply to an examination report in opposition proceedings
Oct 4, 2023
Brief communication - Opposition proceedings
Oct 4, 2023
Brief communication - Opposition proceedings
Oct 4, 2023
Brief communication - Opposition proceedings
Oct 4, 2023
Communication inviting the parties to file observations
Oct 4, 2023
Communication inviting the parties to file observations
Oct 4, 2023
Communication inviting the parties to file observations
Aug 22, 2023
Brief communication - Opposition proceedings
Aug 22, 2023
Brief communication - Opposition proceedings
Aug 17, 2023
(Electronic) Receipt
Aug 17, 2023
Amended description with annotations
Aug 17, 2023
Description
Aug 17, 2023
Letter accompanying subsequently filed items
Aug 17, 2023
Reply to an examination report in opposition proceedings
Jul 21, 2023
Annex to the communication - opposition
Jul 21, 2023
Brief communication - Opposition proceedings
Jul 21, 2023
Brief communication - Opposition proceedings
Jul 21, 2023
Brief communication - Opposition proceedings
Jul 21, 2023
Communication inviting the parties to file observations
Jul 21, 2023
Communication inviting the parties to file observations
Jul 21, 2023
Communication inviting the parties to file observations
Jul 12, 2023
(Electronic) Receipt
Jul 12, 2023
Advice of delivery
Jul 12, 2023
Letter accompanying subsequently filed items
Jun 30, 2023
Decision of the Board of Appeal
Jun 30, 2023
Decision of the Board of Appeal
Jun 30, 2023
F3032 Notification(s) of the decision
Jun 30, 2023
F3032 Notification(s) of the decision
Jun 30, 2023
F3032 Notification(s) of the decision
Apr 6, 2023
F3013 Oral Proceedings: Forwarding minutes
Apr 6, 2023
F3013 Oral Proceedings: Forwarding minutes
Apr 6, 2023
F3013 Oral Proceedings: Forwarding minutes
Apr 6, 2023
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Apr 6, 2023
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Mar 29, 2023
(Electronic) Receipt
Mar 29, 2023
F3345 Forwarding of submissions to parties
Mar 29, 2023
F3345 Forwarding of submissions to parties
Mar 29, 2023
Letter accompanying subsequently filed items
Mar 29, 2023
Letter dealing with oral proceedings during the appeal procedure
Mar 29, 2023
Non-Patent Literature cited during the appeal procedure
Mar 29, 2023
Non-Patent Literature cited during the appeal procedure
Mar 27, 2023
(Electronic) Receipt
Mar 27, 2023
Letter accompanying subsequently filed items
Mar 23, 2023
(Electronic) Receipt
Mar 23, 2023
F3345 Forwarding of submissions to parties
Mar 23, 2023
F3345 Forwarding of submissions to parties
Mar 23, 2023
F3936 Acknowledgement of receipt Board of Appeal
Mar 23, 2023
Letter accompanying subsequently filed items
Mar 23, 2023
Oral proceedings: change of venue
Mar 23, 2023
Oral proceedings: change of venue
Mar 23, 2023
Oral proceedings: change of venue
Mar 22, 2023
(Electronic) Receipt
Mar 22, 2023
Letter accompanying subsequently filed items
Mar 22, 2023
Letter dealing with oral proceedings during the appeal procedure
Mar 16, 2023
F3345 Forwarding of submissions to parties
Mar 16, 2023
F3345 Forwarding of submissions to parties
Mar 15, 2023
(Electronic) Receipt
Mar 15, 2023
Letter dealing with oral proceedings during the appeal procedure
Mar 15, 2023
Letter dealing with oral proceedings during the appeal procedure
Mar 7, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Mar 7, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Mar 7, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Mar 7, 2023
F3345 Forwarding of submissions to parties
Mar 2, 2023
(Electronic) Receipt
Mar 2, 2023
General enquiry
Mar 2, 2023
Letter accompanying subsequently filed items
Jan 23, 2023
F3345 Forwarding of submissions to parties
Jan 23, 2023
F3345 Forwarding of submissions to parties
Jan 18, 2023
(Electronic) Receipt
Jan 18, 2023
Letter accompanying subsequently filed items
Jan 18, 2023
Letter dealing with oral proceedings during the appeal procedure
Dec 20, 2022
Document concerning representation
Jun 8, 2022
Advice of delivery
Jun 8, 2022
F3011.1 Oral Proceedings: summons
Jun 8, 2022
F3011.1 Oral Proceedings: summons
Jun 8, 2022
F3011.1 Oral Proceedings: summons
Jun 2, 2022
F3010 Oral proceedings: order for summons
Mar 7, 2022
F3345 Forwarding of submissions to parties
Mar 7, 2022
F3345 Forwarding of submissions to parties
Mar 1, 2022
(Electronic) Receipt
Mar 1, 2022
Letter accompanying subsequently filed items
Mar 1, 2022
Letter relating to Appeal Procedure
Dec 4, 2020
Composition of the board (T)
Dec 2, 2020
F3345 Forwarding of submissions to parties
Dec 2, 2020
F3345 Forwarding of submissions to parties
Nov 27, 2020
(Electronic) Receipt
Nov 27, 2020
Auxiliary request during appeals procedure - 02
Nov 27, 2020
Auxiliary request during appeals procedure - 02
Nov 27, 2020
Auxiliary request during appeals procedure - 03
Nov 27, 2020
Auxiliary request during appeals procedure - 03
Nov 27, 2020
Auxiliary request during appeals procedure - 04
Nov 27, 2020
Auxiliary request during appeals procedure - 04
Nov 27, 2020
Auxiliary request during appeals procedure - 05
Nov 27, 2020
Auxiliary request during appeals procedure - 05
Nov 27, 2020
Auxiliary request during appeals procedure - 06
Nov 27, 2020
Auxiliary request during appeals procedure - 06
Nov 27, 2020
Letter accompanying subsequently filed items
Nov 27, 2020
Reply to appeal
Jul 27, 2020
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Jul 27, 2020
F3345 Forwarding of submissions to parties
Jul 27, 2020
F3345 Forwarding of submissions to parties
Jul 20, 2020
(Electronic) Receipt
Jul 20, 2020
Letter accompanying subsequently filed items
Jul 20, 2020
Statement of grounds of appeal
Jul 16, 2020
(Electronic) Receipt
Jul 16, 2020
Cited document during appeal procedure
Jul 16, 2020
Letter accompanying subsequently filed items
Jul 16, 2020
Statement of grounds of appeal
Jun 2, 2020
F3204 Communication of the file number to the parties
Jun 2, 2020
F3204 Communication of the file number to the parties
Jun 2, 2020
F3204 Communication of the file number to the parties
Jun 2, 2020
F3204 Communication of the file number to the parties
Jun 2, 2020
F3204 Communication of the file number to the parties
Jun 2, 2020
F3204 Communication of the file number to the parties
May 26, 2020
(Electronic) Receipt
May 26, 2020
Letter accompanying subsequently filed items
May 26, 2020
Notice of appeal
May 14, 2020
(Electronic) Receipt
May 14, 2020
Letter accompanying subsequently filed items
May 14, 2020
Notice of appeal
Apr 24, 2020
Advice of delivery
Apr 24, 2020
Advice of delivery
Apr 24, 2020
Communication about missing advice of delivery
Apr 24, 2020
Communication about missing advice of delivery
Mar 26, 2020
Advice of delivery
Mar 18, 2020
Acknowledgement of a document
Mar 18, 2020
Acknowledgement of a document
Mar 18, 2020
Acknowledgement of a document
Mar 18, 2020
Annex to the communication - opposition
Mar 18, 2020
Any annexes (other than citation) to an opposition letter
Mar 18, 2020
Decision of the Opposition Division and instruction
Mar 18, 2020
Druckexemplar in opposition procedure
Mar 18, 2020
Grounds for the decision (Annex) - opposition
Mar 18, 2020
Interlocutory decision in opposition proceedings
Mar 18, 2020
Internal form - Opposition/addressees
Mar 18, 2020
Internal form - Opposition/addressees
Mar 18, 2020
Means of redress
Mar 18, 2020
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 18, 2020
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 18, 2020
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Mar 18, 2020
Provision of a copy of the minutes - opposition procedure
Feb 17, 2020
Brief communication - Opposition proceedings
Feb 17, 2020
Brief communication - Opposition proceedings
Feb 17, 2020
Communication of amended entries
Feb 11, 2020
Brief communication - Opposition proceedings
Feb 11, 2020
Brief communication - Opposition proceedings
Feb 11, 2020
Communication of amended entries
Feb 4, 2020
Information about the result of oral proceedings
Jan 14, 2020
Request for change of opponent's representative
Jan 13, 2020
Request for change of opponent's representative
Jan 13, 2020
Request for change of opponent's representative
Dec 10, 2019
Brief communication - Opposition proceedings
Dec 10, 2019
Brief communication - Opposition proceedings
Dec 9, 2019
Brief communication - Opposition proceedings
Dec 9, 2019
Brief communication - Opposition proceedings
Dec 4, 2019
(Electronic) Receipt
Dec 4, 2019
(Electronic) Receipt
Dec 4, 2019
Any annexes (other than citation) to an opposition letter
Dec 4, 2019
Brief communication - Opposition proceedings
Dec 4, 2019
Brief communication - Opposition proceedings
Dec 4, 2019
Citation in opposition procedure - 009
Dec 4, 2019
Citation in opposition procedure - 010
Dec 4, 2019
Claims
Dec 4, 2019
Claims
Dec 4, 2019
Claims
Dec 4, 2019
Claims
Dec 4, 2019
Claims
Dec 4, 2019
Claims
Dec 4, 2019
Claims
Dec 4, 2019
Claims
Dec 4, 2019
Claims
Dec 4, 2019
Consolidated list of cited opposition documents
Dec 4, 2019
Letter accompanying subsequently filed items
Dec 4, 2019
Letter accompanying subsequently filed items
Dec 4, 2019
Written submission in preparation to/during oral proceedings
Dec 4, 2019
Written submission in preparation to/during oral proceedings
Nov 29, 2019
(Electronic) Receipt
Nov 29, 2019
Letter accompanying subsequently filed items
Nov 29, 2019
Request for interpreters during oral proceedings
Aug 23, 2019
Advice of delivery
Aug 5, 2019
Advice of delivery
Aug 5, 2019
Advice of delivery
Aug 1, 2019
Advice of delivery
Jul 31, 2019
Advice of delivery
Jul 26, 2019
Acknowledgement of a document
Jul 26, 2019
Acknowledgement of a document
Jul 26, 2019
Acknowledgement of a document
Jul 26, 2019
Annex to the communication - opposition
Jul 26, 2019
Information concerning oral proceedings
Jul 26, 2019
Summons to attend oral proceedings
Jul 26, 2019
Summons to attend oral proceedings
Jul 26, 2019
Summons to attend oral proceedings
May 13, 2019
Brief communication - Opposition proceedings
May 13, 2019
Brief communication - Opposition proceedings
May 3, 2019
(Electronic) Receipt
May 3, 2019
Claims
May 3, 2019
Claims
May 3, 2019
Claims
May 3, 2019
Claims
May 3, 2019
Claims
May 3, 2019
Claims
May 3, 2019
Letter accompanying subsequently filed items
May 3, 2019
Reply of the patent proprietor to the notice(s) of opposition
Apr 12, 2019
Communication of amended entries
Mar 11, 2019
Request concerning representative opponent
Jan 4, 2019
Communication of a notice of opposition and request to file observations
Jan 4, 2019
Notice of further oppositions to opponent(s)
Jan 4, 2019
Notice of further oppositions to opponent(s)
Jan 2, 2019
Communication of a notice of opposition - first information to patent proprietor
Dec 18, 2018
(Electronic) Receipt
Dec 18, 2018
Letter accompanying subsequently filed items
Dec 18, 2018
Letter regarding the opposition procedure (no time limit)
Dec 17, 2018
Result of consultation by telephone/in person
Dec 14, 2018
(Electronic) Receipt
Dec 14, 2018
Citation in opposition procedure - 005
Dec 14, 2018
Citation in opposition procedure - 006
Dec 14, 2018
Citation in opposition procedure - 007
Dec 14, 2018
Citation in opposition procedure - 008
Dec 14, 2018
Notice of opposition
Dec 14, 2018
Notice of opposition
Dec 14, 2018
Submission concerning representation
Dec 13, 2018
(Electronic) Receipt
Dec 13, 2018
Citation in opposition procedure - 001
Dec 13, 2018
Citation in opposition procedure - 001
Dec 13, 2018
Citation in opposition procedure - 002
Dec 13, 2018
Citation in opposition procedure - 003
Dec 13, 2018
Citation in opposition procedure - 004
Dec 13, 2018
Notice of opposition
Dec 13, 2018
Notice of opposition
Mar 26, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Feb 15, 2018
Decision to grant a European patent
Jan 31, 2018
(Electronic) Receipt
Jan 31, 2018
Filing of the translations of the claims
Jan 31, 2018
French translation of claims
Jan 31, 2018
German translation of the claims
Jan 31, 2018
Letter accompanying subsequently filed items
Oct 20, 2017
Bibliographic data of the European patent application
Oct 20, 2017
Communication about intention to grant a European patent
Oct 20, 2017
Intention to grant (signatures)
Oct 20, 2017
Text intended for grant (clean copy)
Oct 20, 2017
Text intended for grant (version for approval)
Nov 17, 2016
(Electronic) Receipt
Nov 17, 2016
Amended claims with annotations
Nov 17, 2016
Amended description with annotations
Nov 17, 2016
Claims
Nov 17, 2016
Description
Nov 17, 2016
Letter accompanying subsequently filed items
Nov 17, 2016
Reply to communication from the Examining Division
Sep 20, 2016
Annex to the communication
Sep 20, 2016
Communication from the Examining Division
Aug 13, 2015
Examination started
Aug 8, 2013
Communication of amended entries concerning the representative
Aug 2, 2013
Submission concerning change of applicant's representative
Jul 31, 2013
Submission concerning change of applicant's representative
May 8, 2013
Amended claims filed after receipt of (European) search report
May 8, 2013
Amended claims with annotations
May 8, 2013
Amendments received before examination
Jan 30, 2013
Notification on forthcoming publication of bibliographic data
Jan 23, 2013
Communication to designated inventor
Jan 16, 2013
Letter concerning the inventor
Jan 10, 2013
Invitation to indicate correct address of inventor
Dec 21, 2012
Letter which had not been notified
Nov 27, 2012
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Nov 23, 2012
Communication to designated inventor
Nov 23, 2012
Communication to designated inventor
Nov 23, 2012
Communication to designated inventor
Nov 23, 2012
Communication to designated inventor
Nov 23, 2012
Communication to designated inventor
Nov 7, 2012
Copy of the international preliminary report on patentability
Nov 5, 2012
(Electronic) Receipt
Nov 5, 2012
Matter concerning the application
Nov 5, 2012
Request for entry into the European phase
Aug 31, 2012
Information on entry into European phase
Nov 17, 2011
Priority document (electronically transmitted)
Oct 27, 2011
Copy of the international search report
Oct 27, 2011
Published international application - A1
Aug 29, 2011
Written opinion of the ISA, boxes No. I to VIII
Aug 29, 2011
Written opinion of the ISA, cover sheet
Aug 29, 2011
Written opinion of the ISA, supplemental box
Apr 27, 2011
Abstract
Apr 27, 2011
Claims
Apr 27, 2011
Description
Apr 27, 2011
Drawings

EP2560999

CHEVRON PHILLIPS CHEMICAL LP

Application Number: EP11719104A
Filing Date: Apr 15, 2011
Status: Patent Maintained As Amended; May 23, 2025
Publication Date: Jun 25, 2025
External Links: Slate, Register , Google Patents

IP Verse

Catalyst Composition For Producing High Mz/Mw Polyolefins

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP2560999