Process For The Production Of Water And Solvent-Free Halobutyl Rubbers

Patent No. EP2550309 (titled "Process For The Production Of Water And Solvent-Free Halobutyl Rubbers") was filed by Lanxess on Mar 23, 2011. The application was issued on Sep 24, 2014.

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
LIST HOLDING	Feb 10, 2015	PATENTANWALTE UND RECHTSANWALT WEISS

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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Oct 11, 2016
CDS Clean up - amended data concerning the representative for the applicant
Aug 19, 2016
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Aug 16, 2016
Termination of the opposition proceedings with maintenance of patent
Jun 4, 2016
Advice of delivery
May 6, 2016
Advice of delivery
May 4, 2016
Decision to discontinue the opposition proceedings
Apr 21, 2016
Refund of fees
Apr 13, 2016
Brief communication - Opposition proceedings
Apr 13, 2016
Brief communication - Opposition proceedings
Apr 9, 2016
Withdrawal of an opposition
Apr 8, 2016
(Electronic) Receipt
Apr 8, 2016
Letter accompanying subsequently filed items
Apr 8, 2016
Withdrawal of an opposition
Apr 8, 2016
Withdrawal of an opposition
Feb 11, 2016
Brief communication - Opposition proceedings
Feb 4, 2016
Reply of the patent proprietor to the notice(s) of opposition
Nov 10, 2015
Brief communication - Opposition proceedings
Nov 10, 2015
Grant of extension of time limit (opposition procedure)
Nov 5, 2015
(Electronic) Receipt
Nov 5, 2015
Letter accompanying subsequently filed items
Nov 5, 2015
Request for extension of time limit
Jul 29, 2015
Communication of a notice of opposition and request to file observations
Jul 29, 2015
Notice of further oppositions to opponent(s)
Jul 17, 2015
Brief communication - Opposition proceedings
Jul 17, 2015
Communication of amended entries
Feb 17, 2015
Communication of a notice of opposition - first information to patent proprietor
Feb 10, 2015
(Electronic) Receipt
Feb 10, 2015
Any annexes (other than citation) to an opposition letter
Feb 10, 2015
Non-patent literature cited during the opposition procedure
Feb 10, 2015
Non-patent literature cited during the opposition procedure
Feb 10, 2015
Non-patent literature cited during the opposition procedure
Feb 10, 2015
Non-patent literature cited during the opposition procedure
Feb 10, 2015
Non-patent literature cited during the opposition procedure
Feb 10, 2015
Non-patent literature cited during the opposition procedure
Feb 10, 2015
Non-patent literature cited during the opposition procedure
Feb 10, 2015
Notice of opposition
Feb 10, 2015
Notice of opposition
Feb 10, 2015
Patent document cited during the opposition procedure
Feb 10, 2015
Patent document cited during the opposition procedure
Feb 10, 2015
Patent document cited during the opposition procedure
Feb 10, 2015
Patent document cited during the opposition procedure
Feb 10, 2015
Patent document cited during the opposition procedure
Sep 26, 2014
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 28, 2014
Decision to grant a European patent
Aug 13, 2014
(Electronic) Receipt
Aug 13, 2014
Filing of the translations of the claims
Aug 13, 2014
French translation of claims
Aug 13, 2014
German translation of the claims
Aug 13, 2014
Letter accompanying subsequently filed items
Jul 4, 2014
Bibliographic data of the European patent application
Jul 4, 2014
Communication about intention to grant a European patent
Jul 4, 2014
Intention to grant (signatures)
Jul 4, 2014
Text intended for grant
Aug 13, 2013
CDS Clean up - amended data concerning the representative for the applicant
May 17, 2013
(Electronic) Receipt
May 17, 2013
Amended claims filed after receipt of (European) search report
May 17, 2013
Amended claims with annotations
May 17, 2013
Amendments received before examination
May 17, 2013
Letter accompanying subsequently filed items
Jan 4, 2013
Notification on forthcoming publication of bibliographic data
Nov 7, 2012
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Nov 5, 2012
Communication to designated inventor
Nov 5, 2012
Communication to designated inventor
Nov 5, 2012
Communication to designated inventor
Nov 5, 2012
Communication to designated inventor
Nov 5, 2012
Communication to designated inventor
Nov 5, 2012
Communication to designated inventor
Oct 30, 2012
Priority search results copy provided by EPO
Oct 10, 2012
Copy of the international preliminary report on patentability
Aug 31, 2012
(Electronic) Receipt
Aug 31, 2012
Request for entry into the European phase
Aug 3, 2012
Information on entry into European phase
Oct 17, 2011
Priority document (electronically transmitted)
Oct 17, 2011
Priority document (electronically transmitted)
Sep 29, 2011
Copy of the international search report
Sep 29, 2011
Published international application - A1
Jun 22, 2011
Written opinion of the ISA, boxes No. I to VIII
Jun 22, 2011
Written opinion of the ISA, cover sheet
Jun 22, 2011
Written opinion of the ISA, supplemental box
Mar 23, 2011
(Electronic) Receipt
Mar 23, 2011
Abstract
Mar 23, 2011
Claims
Mar 23, 2011
Description
Mar 23, 2011
Drawings
Mar 23, 2011
Priority document (RO-procedure)
Mar 23, 2011
Priority document (RO-procedure)
Mar 23, 2011
Submission concerning representation

EP2550309

LANXESS

Application Number: EP11709946A
Filing Date: Mar 23, 2011
Status: Opposition Procedure Closed
Publication Date: Sep 24, 2014
External Links: Slate, Register , Google Patents

IP Verse

Process For The Production Of Water And Solvent-Free Halobutyl Rubbers

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP2550309