Method For Reducing Feedback Information Overhead In Precoded Mimo-Ofdm Systems

Patent No. EP2400672 (titled "Method For Reducing Feedback Information Overhead In Precoded Mimo-Ofdm Systems") was filed by Huawei on Jun 20, 2006. The application was issued on Jun 18, 2014.

Patent Family

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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
ZTE DEUTSCHLAND	Mar 18, 2015	VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE 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

Jun 23, 2017
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Jun 20, 2017
Termination of the opposition proceedings with maintenance of patent
Mar 14, 2017
Advice of delivery
Mar 13, 2017
Advice of delivery
Mar 10, 2017
Acknowledgement of a document
Mar 10, 2017
Decision to discontinue the opposition proceedings
Mar 10, 2017
Letter regarding the opposition procedure (no time limit)
Mar 10, 2017
Notification concerning the date of oral proceedings
Mar 9, 2017
Letter regarding the opposition procedure (no time limit)
Feb 27, 2017
Brief communication - Opposition proceedings
Feb 27, 2017
Brief communication - Opposition proceedings
Feb 20, 2017
Withdrawal of an opposition
Sep 28, 2016
Advice of delivery
Sep 27, 2016
Advice of delivery
Sep 27, 2016
Advice of delivery
Sep 27, 2016
Advice of delivery
Sep 26, 2016
Acknowledgement of a document
Sep 26, 2016
Acknowledgement of a document
Sep 26, 2016
Annex to the communication - opposition
Sep 26, 2016
Preparation for oral proceedings
Sep 26, 2016
Summons to attend oral proceedings
Sep 26, 2016
Summons to attend oral proceedings
Aug 25, 2016
Notification concerning the date of oral proceedings
Aug 25, 2016
Notification concerning the date of oral proceedings
Aug 23, 2016
Brief communication - Opposition proceedings
Aug 19, 2016
Letter regarding the opposition procedure (no time limit)
Aug 19, 2016
Non-patent literature cited during the opposition procedure
Aug 19, 2016
Non-patent literature cited during the opposition procedure
Aug 19, 2016
Non-patent literature cited during the opposition procedure
Aug 19, 2016
Non-patent literature cited during the opposition procedure
Aug 18, 2016
Brief communication - Opposition proceedings
Aug 18, 2016
Letter regarding the opposition procedure (no time limit)
Aug 12, 2016
Brief communication - Opposition proceedings
Aug 10, 2016
Letter regarding the opposition procedure (no time limit)
Aug 9, 2016
Request for interpreters during oral proceedings
Aug 9, 2016
Request for interpreters during oral proceedings
Aug 8, 2016
Annex to the communication - opposition
Aug 8, 2016
Notification concerning the date of oral proceedings
Aug 8, 2016
Notification concerning the date of oral proceedings
Jul 20, 2016
Brief communication - Opposition proceedings
Jul 15, 2016
Letter regarding the opposition procedure (no time limit)
Jul 15, 2016
Non-patent literature cited during the opposition procedure
Jul 14, 2016
Letter regarding the opposition procedure (no time limit)
Jul 14, 2016
Non-patent literature cited during the opposition procedure
Jul 13, 2016
Advice of delivery
Jul 12, 2016
Advice of delivery
Jul 12, 2016
Advice of delivery
Jul 12, 2016
Advice of delivery
Jul 11, 2016
Acknowledgement of a document
Jul 11, 2016
Acknowledgement of a document
Jul 11, 2016
Annex to the communication - opposition
Jul 11, 2016
Information concerning oral proceedings
Jul 11, 2016
Preparation for oral proceedings
Jul 11, 2016
Summons to attend oral proceedings
Jul 11, 2016
Summons to attend oral proceedings
Apr 14, 2016
Brief communication - Opposition proceedings
Apr 14, 2016
Communication concerning the filing of a power of attorney
Apr 14, 2016
Communication of amended entries concerning the representative
Mar 15, 2016
Authorisation
Mar 15, 2016
Submission concerning change of applicant's representative
Mar 3, 2016
Brief communication - Opposition proceedings
Mar 3, 2016
Brief communication - Opposition proceedings
Feb 26, 2016
Authorisation
Feb 26, 2016
Submission concerning change of applicant's representative
Dec 21, 2015
Invitation to file an authorisation
Nov 19, 2015
Brief communication - Opposition proceedings
Nov 13, 2015
Submission concerning change of applicant's representative
Nov 11, 2015
Submission concerning representation
Nov 9, 2015
Brief communication - Opposition proceedings
Oct 30, 2015
Grounds for the decision (Annex)
Oct 30, 2015
Non-patent literature cited during the opposition procedure
Oct 30, 2015
Non-patent literature cited during the opposition procedure
Oct 30, 2015
Non-patent literature cited during the opposition procedure
Oct 30, 2015
Reply of the patent proprietor to the notice(s) of opposition
Oct 30, 2015
Reply of the patent proprietor to the notice(s) of opposition
Aug 26, 2015
Brief communication - Opposition proceedings
Aug 26, 2015
Grant of extension of time limit (opposition procedure)
Aug 21, 2015
Request for extension of time limit
Jul 27, 2015
Brief communication - Opposition proceedings
Jul 27, 2015
Communication of amended entries concerning the representative
Jul 14, 2015
Brief communication - Opposition proceedings
Jul 8, 2015
Authorisation
Jul 8, 2015
Request for change of opponent's representative
May 26, 2015
Submission concerning representation
Apr 22, 2015
Communication of a notice of opposition and request to file observations
Apr 22, 2015
Notice of further oppositions to opponent(s)
Mar 26, 2015
Communication of a notice of opposition - first information to patent proprietor
Mar 18, 2015
(Electronic) Receipt
Mar 18, 2015
Any annexes (other than citation) to an opposition letter
Mar 18, 2015
Any annexes (other than citation) to an opposition letter
Mar 18, 2015
Any annexes (other than citation) to an opposition letter
Mar 18, 2015
Any annexes (other than citation) to an opposition letter
Mar 18, 2015
Any annexes (other than citation) to an opposition letter
Mar 18, 2015
Any annexes (other than citation) to an opposition letter
Mar 18, 2015
Any annexes (other than citation) to an opposition letter
Mar 18, 2015
Letter accompanying subsequently filed items
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Non-patent literature cited during the opposition procedure
Mar 18, 2015
Notice of opposition
Mar 18, 2015
Notice of opposition
Mar 18, 2015
Notice of opposition
Mar 18, 2015
Patent document cited during the opposition procedure
Feb 17, 2015
CDS Clean up - amended applicant details
Jun 20, 2014
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
May 22, 2014
Decision to grant a European patent
May 5, 2014
(Electronic) Receipt
May 5, 2014
Filing of the translations of the claims
May 5, 2014
Letter accompanying subsequently filed items
Mar 25, 2014
Bibliographic data of the European patent application
Mar 25, 2014
Communication about intention to grant a European patent
Mar 25, 2014
Intention to grant (signatures)
Mar 25, 2014
Text intended for grant
Mar 17, 2014
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Feb 19, 2014
(Electronic) Receipt
Feb 19, 2014
Amended claims with annotations
Feb 19, 2014
Claims
Feb 19, 2014
French translation of claims
Feb 19, 2014
German translation of the claims
Feb 19, 2014
Letter accompanying subsequently filed items
Feb 19, 2014
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Jan 30, 2014
CDS Clean up - amended data concerning the representative for the applicant
Jan 28, 2014
Submission concerning representation
Oct 18, 2013
Bibliographic data of the European patent application
Oct 18, 2013
Communication about intention to grant a European patent
Oct 18, 2013
Intention to grant (signatures)
Oct 18, 2013
Text intended for grant
Mar 5, 2013
(Electronic) Receipt
Mar 5, 2013
Amended claims with annotations
Mar 5, 2013
Amended description with annotations
Mar 5, 2013
Claims
Mar 5, 2013
Description
Mar 5, 2013
Letter accompanying subsequently filed items
Mar 5, 2013
Reply to communication from the Examining Division
Jan 8, 2013
Grant of extension of time limit (examination procedure)
Dec 21, 2012
(Electronic) Receipt
Dec 21, 2012
Letter accompanying subsequently filed items
Sep 11, 2012
Letter relating to the automatic debiting procedure
Sep 3, 2012
Communication of amended entries concerning the representative
Aug 29, 2012
Submission concerning change of applicant's representative
Aug 28, 2012
Annex to the communication
Aug 28, 2012
Communication from the Examining Division
Jun 28, 2012
(Electronic) Receipt
Jun 28, 2012
Letter accompanying subsequently filed items
Jun 28, 2012
Reply to Written Opinion prepared by the EPO
Apr 2, 2012
Communication of amended entries concerning the representative
Mar 22, 2012
Submission concerning change of applicant's representative
Feb 28, 2012
(Electronic) Receipt
Feb 28, 2012
Letter accompanying subsequently filed items
Feb 28, 2012
Letter concerning the inventor
Jan 16, 2012
Refund of fees
Jan 2, 2012
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Dec 16, 2011
CDS Clean up - amended data concerning the representative for the applicant
Dec 14, 2011
Submission concerning representation
Dec 2, 2011
Invitation to indicate correct address of inventor
Dec 2, 2011
Invitation to indicate correct address of inventor
Nov 30, 2011
Notification of forthcoming publication
Nov 25, 2011
Letter which had not been notified
Nov 25, 2011
Letter which had not been notified
Nov 21, 2011
Communication regarding the transmission of the European search report
Nov 21, 2011
European search opinion
Nov 21, 2011
European search report
Sep 21, 2011
Abstract
Sep 21, 2011
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Sep 21, 2011
Claims
Sep 21, 2011
Description
Sep 21, 2011
Designation of inventor
Sep 21, 2011
Designation of inventor
Sep 21, 2011
Drawings
Sep 21, 2011
Request for grant of a European patent

EP2400672

HUAWEI

Application Number: EP11182198A
Filing Date: Jun 20, 2006
Status: Opposition Procedure Closed
Publication Date: Jun 18, 2014
External Links: Slate, Register , Google Patents

IP Verse

Method For Reducing Feedback Information Overhead In Precoded Mimo-Ofdm Systems

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP2400672