IPR Details
Philip R. Zimmermann's statement about IPR claimed in draft-zimmermann-avt-zrtp-02.txt

• Disclosure
• History

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	Philip R. Zimmermann

II. Patent Holder's Contact for License Application

Holder contact name	Philip Zimmermann
Holder contact email	prz@mit.edu
Holder contact info	190 East O'Keefe Street, Suite 7 Menlo Park, CA 94025 USA T: +1 650 322-7223 F: +1 650 322-7877

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

Name	Philip Zimmermann
Email	prz@mit.edu
Other info	Menlo Park, CA 94025 USA T: +1 650 322-7223 F: +1 650 322-7877

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

Internet-Draft: draft-zimmermann-avt-zrtp ("ZRTP: Media Path Key Agreement for Unicast Secure RTP") Revisions: 02

V. Disclosure of Patent Information
i.e., patents or patent applications required to be disclosed by 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)

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending	Yes

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):

Licensing	See Text Below for Licensing Declaration
Licensing information, comments, notes, or URL for further information	In relation to any IETF standard incorporating the technology in the ZRTP specification ("ZRTP Technology"), Philip Zimmermann (together with his successors and assignees, “PRZ�) will grant a royalty-free, non-exclusive license to Qualified Parties to use the ZRTP Technology solely to the extent necessary to implement and practice such IETF standards in strict conformance with the IETF standards. As used herein, Qualified Parties means a party who has not, does not and will not assert, in litigation or otherwise, including in licensing discussions, any patent or other intellectual property right against PRZ or any licensee of the libZRTP SDK. Any such license to a Qualified Party shall terminate at once if such party asserts a patent or other intellectual property right against PRZ or any licensee of the libZRTP SDK. PRZ will grant non-exclusive licenses to Non-Qualified Parties on reasonable, reciprocal non-discriminatory terms and conditions. For further information, see http://philzimmermann.com/zfone

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	Philip Zimmermann
Submitter email	prz@mit.edu

VIII. Other Notes

Additional notes	For further information, see http://philzimmermann.com/zfone

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