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IPR Details
AT&Ts patent statement pertaining to draft-korn-vcdiff

The text of the original IPR disclosure is available in the disclosure history.

Submitted: June 29, 2001 under the rules in RFC 2026.

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 AT&T

II. Patent Holder's Contact for License Application

Holder contact name Thomas F. Frost
Holder contact email
Holder contact info

AT&T Intellectual Property Licensing
Room 2E37, Building 104
180 Park Avenue, Florham Park, NJ 07932

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

draft-korn-vcdiff ("The VCDIFF Generic Differencing and Compression Data Format")
No revisions for this Internet-Draft were specified in this disclosure. The Internet-Draft's revision was 03 at the time this disclosure was posted. Contact the discloser or patent holder if there are questions about which revisions this disclosure pertains to.

IV. 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):

Licensing See Text Below for Licensing Declaration
Licensing information, comments, notes, or URL for further information

This is to advise the IETF that AT&T owns copyrights in the Internet Draft
document "draft-korn-vcdiff-02.txt" and, to the extent that the technology
discussed in such Internet Draft document becomes an IETF Standard, AT&T
agrees that upon written request AT&T will offer, on a nondiscriminatory,
royalty-free basis, non-exclusive licenses for prospective licensees to
transmit data over the Internet under HTTP 1.1 in accordance with such IETF
Standard. AT&T's willingness to grant such licenses is conditioned upon the
prospective licensee granting a reciprocal license to AT&T under any patents
that the prospective licensee has to any technology required to implement
that IETF Standard.

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.

V. Contact Information of Submitter of this Form

Submitter name
Submitter email

Only those sections of the relevant entry form where the submitter provided information are displayed above.