IPR Details
British Telecommunications plc's statement about IPR claimed in draft-ietf-conex-abstract-mech-06

Submitted: November 22, 2012

Note: Updates to IPR disclosures must only be made by authorized representatives of the original submitters. Updates will automatically be forwarded to the current Patent Holder's Contact and to the Submitter of the original IPR disclosure.



I. Patent Holder/Applicant ("Patent Holder")

Holder legal name
British Telecommunications PLC

II. Patent Holder's Contact for License Application

Holder contact name
Nigel Lecky
Holder contact email
Holder contact info

Head of Licensing
BT Innovate & Design
PPA8.32, 8th Floor, BT Centre
81 Newgate Street, London EC1A 7AJ
T: +44 (0)20 7356 4894

III. Contact Information for the IETF Participant Whose Personal Belief Triggered this Disclosure

Bob Briscoe
Other info

Chief Researcher, Network Infrastructure & Innovation
BT Innovation & Design
pp B54/77 Sirius House Adastral Park
Martlesham Heath Ipswich IP5 3RE UK
T: +44 1473 645196

IV. IETF Document or Other Contribution to Which this IPR Disclosure Relates

draft-ietf-conex-mobile ("Mobile Communication Congestion Exposure Scenario")
draft-briscoe-conex-initial-deploy ("Initial Congestion Exposure (ConEx) Deployment Examples")
draft-briscoe-conex-data-centre ("Network Performance Isolation in Data Centres using Congestion Policing")
draft-ietf-conex-destopt ("IPv6 Destination Option for Congestion Exposure (ConEx)")
draft-briscoe-conex-re-ecn-motiv ("Re-ECN: A Framework for adding Congestion Accountability to TCP/IP")
draft-ietf-conex-abstract-mech ("Congestion Exposure (ConEx) Concepts, Abstract Mechanism, and Requirements")
draft-briscoe-conex-re-ecn-tcp ("Re-ECN: Adding Accountability for Causing Congestion to TCP/IP")
draft-ietf-conex-tcp-modifications ("TCP Modifications for Congestion Exposure (ConEx)")

V. Disclosure of Patent Information i.e., patents or patent applications required to be disclosed by Section 6 of RFC 8179

A. For granted patents or published pending patent applications, please provide the following information:

Patent, Serial, Publication, Registration, or Application/File number(s)

(1) WO2005/096566 / (2) WO2005/109783 / (3) WO2006/079845 /
(4) WO2006 082443 / (5) WO2008/001081 / (6) WO2010/106311 /
(7) WO2011/121270 / (8) EP 11250620.9 / (9) WO2005/096567
Date: (1) 2009-07-08 (Granted) (2) 2011-05-03 (Granted) (3) 2009-12-16 (Granted) (4) 2011-05-24 (Granted) (5) 2006-06-26 (Applied) (6) 2009-03-16 (Applied) (7) 2010-03-31 (Applied) (8) 2011-06-30 (Applied) (9) 2005/03/30 (Applied)
Country: (1) CA/CN/DE/EP/FR/GB/IN/US (2) CA/EP/GB/IN/US (3) CN/DE/EP/FR/GB/IN/US (4) CN/EP/GB/IN/JP/KR/US (5) EP/US (6) CN/EP/US (7) EP (8) EP (9) CA/CN/EP/IN/US

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending

VI. Licensing Declaration

The Patent Holder states that its position with respect to licensing any patent claims contained in the patent(s) or patent application(s) disclosed above that would necessarily be infringed by implementation of the technology required by the relevant IETF specification ("Necessary Patent Claims"), for the purpose of implementing such specification, is as follows(select one licensing declaration option only):

Possible licencing choices a), b), and c) when Licencing Declaration to be Provided Later:
  • a) No License Required for Implementers
  • b) Royalty-Free, Reasonable and Non-Discriminatory License to All Implementers
  • c) Reasonable and Non-Discriminatory License to All Implementers with Possible Royalty/Fee

Licensing Declaration to be Provided Later (implies a willingness to commit to the provisions of a), b), or c) above)
Licensing information, comments, notes, or URL for further information

(No information submitted)

Note: The individual submitting this template represents and warrants that he or she is authorized by the Patent Holder to agree to the above-selected licensing declaration.

VII. Contact Information of Submitter of this Form

Submitter name
Peter Ratcliffe
Submitter email

VIII. Other Notes

Additional notes

BT hereby grants a royalty-free licence under any patent claims contained in the
patent(s) or patent application(s) disclosed above that would necessarily be
infringed by implementation of the technology required by the relevant IETF
specification ("Necessary Patent Claims") for the purpose of implementing such
specification or for making, using, selling, distributing or otherwise lawfully
dealing in products or services that include an implementation of such
specification provided that any party wishing to be licensed under BT's patent
claims grants a licence on reciprocal terms under its own Necessary Patent

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