Compressible Liquid Diluent In Polyolefin Polymerization

Patent No. EP2531534 (titled "Compressible Liquid Diluent In Polyolefin Polymerization") was filed by Chevron Phillips Chemical LP on Jan 28, 2011. The application was issued on Mar 13, 2019.

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
BOREALIS	Aug 31, 2016	BOREALIS

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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Feb 14, 2019
Decision to maintain the European patent in amended form
Feb 14, 2019
Decision to maintain the European patent in amended form
Feb 12, 2019
Termination of the opposition proceedings with maintenance of patent
Jan 31, 2019
(Electronic) Receipt
Jan 31, 2019
Amended description with annotations
Jan 31, 2019
Description
Jan 31, 2019
Filing of the translation of the amended claims
Jan 31, 2019
French translation of claims
Jan 31, 2019
German translation of the claims
Jan 31, 2019
Letter accompanying subsequently filed items
Nov 21, 2018
Communication of bibliographic data
Nov 21, 2018
Communication to opponent concerning maintenance
Nov 21, 2018
Communication with request to file translations
Nov 14, 2018
Refund of fees
Nov 13, 2018
Maintenance of the patent with the documents specified in the final decision
Nov 9, 2018
Communication concerning the filing of a power of attorney
Nov 9, 2018
Communication of amended entries
Nov 8, 2018
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Nov 8, 2018
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Nov 7, 2018
Maintenance of the patent with the documents specified in the final decision
Nov 5, 2018
Request for change of opponent's representative
Oct 29, 2018
F3345 Forwarding of submissions to parties
Oct 24, 2018
Composition of the board (T)
Oct 23, 2018
(Electronic) Receipt
Oct 23, 2018
Letter accompanying subsequently filed items
Oct 23, 2018
Withdrawal of an appeal
Sep 6, 2018
F3204 Communication of the file number to the parties
Sep 6, 2018
F3204 Communication of the file number to the parties
Aug 31, 2018
Processing of an appeal
Aug 29, 2018
(Electronic) Receipt
Aug 29, 2018
Letter accompanying subsequently filed items
Aug 29, 2018
Notice of appeal
Jul 26, 2018
Advice of delivery
Jul 2, 2018
Advice of delivery
Jun 26, 2018
Advice of delivery
Jun 22, 2018
Acknowledgement of a document
Jun 22, 2018
Acknowledgement of a document
Jun 22, 2018
Annex to the communication - opposition
Jun 22, 2018
Grounds for the decision (Annex) - opposition
Jun 22, 2018
Interlocutory decision in opposition proceedings
Jun 22, 2018
Internal form - Opposition/addressees
Jun 22, 2018
Internal form - Opposition/addressees
Jun 22, 2018
Means of redress
Jun 22, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jun 22, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jun 22, 2018
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jun 22, 2018
OPPODREX with handwritten amendments
Jun 22, 2018
Provision of a copy of the minutes - opposition procedure
Jun 22, 2018
Scanned annex to a communication - opposition procedure
May 23, 2018
Information about the result of oral proceedings
Apr 19, 2018
Brief communication - Opposition proceedings
Apr 13, 2018
(Electronic) Receipt
Apr 13, 2018
Citation in opposition procedure
Apr 13, 2018
Letter accompanying subsequently filed items
Apr 13, 2018
Letter regarding the opposition procedure (no time limit)
Apr 13, 2018
Non-patent literature cited during the opposition procedure
Mar 28, 2018
Brief communication - Opposition proceedings
Mar 26, 2018
Brief communication - Opposition proceedings
Mar 23, 2018
(Electronic) Receipt
Mar 23, 2018
Amended claims with annotations
Mar 23, 2018
Clean copy of claims in the opposition procedure
Mar 23, 2018
Letter accompanying subsequently filed items
Mar 23, 2018
Letter regarding the opposition procedure (no time limit)
Mar 21, 2018
(Electronic) Receipt
Mar 21, 2018
Letter accompanying subsequently filed items
Mar 21, 2018
Letter regarding the opposition procedure (no time limit)
Jul 21, 2017
Advice of delivery
Jul 19, 2017
Brief communication - Opposition proceedings
Jul 11, 2017
(Electronic) Receipt
Jul 11, 2017
Citation in opposition procedure
Jul 11, 2017
Letter accompanying subsequently filed items
Jul 11, 2017
Letter regarding the opposition procedure (no time limit)
Jul 11, 2017
Non-patent literature cited during the opposition procedure
Jul 11, 2017
Non-patent literature cited during the opposition procedure
Jul 11, 2017
Patent document cited during the opposition procedure
Jul 6, 2017
Advice of delivery
Jul 6, 2017
Advice of delivery
Jul 4, 2017
Acknowledgement of a document
Jul 4, 2017
Acknowledgement of a document
Jul 4, 2017
Annex to the communication - opposition
Jul 4, 2017
Information concerning oral proceedings
Jul 4, 2017
Preparation for oral proceedings
Jul 4, 2017
Summons to attend oral proceedings
Jul 4, 2017
Summons to attend oral proceedings
Jun 8, 2017
Communication of amended entries concerning the representative
Jun 2, 2017
Submission concerning change of applicant's representative
Mar 3, 2017
Brief communication - Opposition proceedings
Feb 24, 2017
Amended claims with annotations
Feb 24, 2017
Amended claims with annotations
Feb 24, 2017
Amended claims with annotations
Feb 24, 2017
Amended claims with annotations
Feb 24, 2017
Claims
Feb 24, 2017
Claims
Feb 24, 2017
Claims
Feb 24, 2017
Claims
Feb 24, 2017
Letter accompanying subsequently filed items
Feb 24, 2017
Reply of the patent proprietor to the notice(s) of opposition
Nov 29, 2016
Communication of amended entries concerning the representative
Nov 23, 2016
Submission concerning change of applicant's representative
Oct 19, 2016
Communication of a notice of opposition and request to file observations
Oct 19, 2016
Notice of further oppositions to opponent(s)
Sep 8, 2016
Communication of a notice of opposition - first information to patent proprietor
Aug 31, 2016
Citation in opposition procedure
Aug 31, 2016
Citation in opposition procedure
Aug 31, 2016
Citation in opposition procedure
Aug 31, 2016
Non-patent literature cited during the opposition procedure
Aug 31, 2016
Non-patent literature cited during the opposition procedure
Aug 31, 2016
Non-patent literature cited during the opposition procedure
Aug 31, 2016
Non-patent literature cited during the opposition procedure
Aug 31, 2016
Non-patent literature cited during the opposition procedure
Aug 31, 2016
Notice of opposition
Aug 31, 2016
Notice of opposition
Aug 31, 2016
Patent document cited during the opposition procedure
Aug 31, 2016
Patent document cited during the opposition procedure
Aug 31, 2016
Patent document cited during the opposition procedure
Aug 31, 2016
Patent document cited during the opposition procedure
Aug 31, 2016
Patent document cited during the opposition procedure
Aug 31, 2016
Patent document cited during the opposition procedure
Aug 31, 2016
Patent document cited during the opposition procedure
Aug 31, 2016
Patent document cited during the opposition procedure
Dec 3, 2015
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Nov 5, 2015
Decision to grant a European patent
Oct 14, 2015
(Electronic) Receipt
Oct 14, 2015
French translation of claims
Oct 14, 2015
German translation of the claims
Oct 14, 2015
Letter accompanying subsequently filed items
Jun 18, 2015
Bibliographic data of the European patent application
Jun 18, 2015
Communication about intention to grant a European patent
Jun 18, 2015
Intention to grant (signatures)
Jun 18, 2015
Text intended for grant
Feb 17, 2015
Decision to allow further processing
Feb 2, 2015
(Electronic) Receipt
Feb 2, 2015
Amended claims with annotations
Feb 2, 2015
Claims
Feb 2, 2015
Letter accompanying subsequently filed items
Feb 2, 2015
Reply to communication from the Examining Division
Dec 1, 2014
Application deemed to be withdrawn (no reply to communication from the Examining Division)
Aug 26, 2014
Grant of extension of time limit (examination procedure)
Aug 21, 2014
(Electronic) Receipt
Aug 21, 2014
Letter accompanying subsequently filed items
Apr 22, 2014
Annex to the communication
Apr 22, 2014
Communication from the Examining Division
Apr 14, 2014
Examination started
Mar 14, 2013
(Electronic) Receipt
Mar 14, 2013
Amended claims filed after receipt of (European) search report
Mar 14, 2013
Amended claims with annotations
Mar 14, 2013
Amendments received before examination
Mar 14, 2013
Letter accompanying subsequently filed items
Nov 14, 2012
Notification on forthcoming publication of bibliographic data
Oct 16, 2012
Priority document (electronically transmitted)
Sep 11, 2012
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Sep 7, 2012
Communication to designated inventor
Sep 7, 2012
Communication to designated inventor
Aug 22, 2012
Copy of the international preliminary report on patentability
Aug 6, 2012
Enquiry with the International Bureau
Jul 31, 2012
(Electronic) Receipt
Jul 31, 2012
Request for entry into the European phase
Jun 15, 2012
Information on entry into European phase
Aug 11, 2011
Copy of the international search report
Aug 11, 2011
Published international application - A1
Mar 18, 2011
Written opinion of the ISA, boxes No. I to VIII
Mar 18, 2011
Written opinion of the ISA, cover sheet
Mar 18, 2011
Written opinion of the ISA, supplemental box
Feb 10, 2011
Abstract
Feb 10, 2011
Claims
Feb 10, 2011
Description
Feb 10, 2011
Drawings

EP2531534

CHEVRON PHILLIPS CHEMICAL LP

Application Number: EP11704131A
Filing Date: Jan 28, 2011
Status: Patent Maintained As Amended; Feb 8, 2019
Publication Date: Mar 13, 2019
External Links: Slate, Register , Google Patents

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Compressible Liquid Diluent In Polyolefin Polymerization

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Dossier Documents

EP2531534