IPR Details
Level 3 Communications, Inc.'s general license statement

Submitted: February 25, 2005

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
Level 3 Communications, Inc.

'II'. Patent Holder's Contact for License Application

Holder contact name
Dallas R. Martin
Holder contact email
Holder contact info

Vice President
1025 Eldorado Boulevard
Broomfield, CO 80021
T: 720-888-2536
F: 720-888-5170

'III'. Disclosure of Patent Information i.e., patents or patent applications required to be disclosed by Section 6 of RFC 3979

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

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

Date: December 14, 2004
Country: United States

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending

'IV'. Statement


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):

Reasonable and Non-Discriminatory License to All Implementers with Possible

This licensing declaration is limited solely to standards-track IETF documents

Licensing information, comments, notes or URL for further information:

If part(s) of a submission by Level 3 is(are) included in an IETF standard and
Level 3 has patents and/or pending application(s) that are essential for the
practice of such included part(s) in said standard, Level 3 is prepared
to grant - on the basis of receiprocity (grantback) - a license on such
included part(s) on reasonable, non-discriminatory terms and conditions.

'V'. Contact Information of Submitter of this Form

Submitter name
Submitter email

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