IPR Details
Philip R. Zimmermann's Statement about IPR related to draft-zimmermann-avt-zrtp-22

Submitted: February 7, 2011 under the rules in RFC 3979 as updated by RFC 4879

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.

Updates

Updates

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

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Philip R. Zimmermann Holder legal name Philip R. Zimmermann

II. Patent Holder's Contact for Licence Application

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Philip R. Zimmermann Holder contact name Philip R. Zimmermann
prz@mit.edu Holder contact email prz@mit.edu

Santa Cruz, CA 95060 USA
T: +1-831-425-7524

Holder contact info

115 Harvard St
Santa Cruz, CA 95060 USA
T: +1-831-425-7524

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

Previous (#1272)This (#1484)
Philip R. Zimmermann Name Philip R. Zimmermann
prz@mit.edu Email prz@mit.edu

T: +1-831-425-7524

Other info

115 Harvard St
Santa Cruz, CA 95060 USA
T: +1-831-425-7524

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

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Internet-Draft: draft-zimmermann-avt-zrtp ("ZRTP: Media Path Key Agreement for Unicast Secure RTP")
Revisions: 17
Internet-Draft: draft-zimmermann-avt-zrtp ("ZRTP: Media Path Key Agreement for Unicast Secure RTP")
Revisions: 22

V. Disclosure of Patent Information i.e., patents or patent applications required to be disclosed by RFC 3979 as updated by RFC 4879

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

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Serial number 11/460,621
Date: Applied for July 27, 2006
Country: USA

Notes: Provisional patent application filed in July 2005

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

US Patent number 7730309
Date: Applied for July 27, 2006
Country: USA

Notes: Provisional patent application filed in July 2005

B. Does this disclosure relate to an unpublished pending patent application?:

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Yes Has patent pending No

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):

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See Text Below for Licensing Declaration Licensing See Text Below for Licensing Declaration

In relation to an IETF standard based on the ZRTP Specification ("ZRTP Technology"), Philip Zimmermann (together with his successors and assignees, "PRZ") will grant a royalty-free, non-exclusive license with reciprocity to Qualified Parties to use the ZRTP Technology solely to the extent necessary to implement and practice such IETF standards that are in compliance with the ZRTP Specification. 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 of any nature, or assert the same against any licensee of the libZRTP SDK because that licensee implements or practices the ZRTP Specification. Any license to a Qualified Party shall terminate at once if such party: (a) no longer meets the definition of a Qualified Party as set forth above; or (b) if applicable, fails to properly implement the disclosure flag described in the ZRTP Specification in a truthful manner. PRZ will grant non-exclusive licenses to Non-Qualified Parties on reasonable and reciprocal terms and conditions. For further information, see http://philzimmermann.com/zfone

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

License Grant

At this time, Philip Zimmermann (together with his assignee, "PRZ") believes US Patent Number 7730309 ("0309") contains claims which may be necessary and essential to implementations of the IETF RFC based on the ZRTP specification draft-zimmermann-avt-zrtp.

Subject to the terms and conditions of this License, PRZ hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this License) patent license to 0309 to the extent that 0309 is infringed by Your implementation (in whole or in part) of this specification or its successor documents published by the IETF.

If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the implementation of the specification constitutes direct or contributory patent infringement, then any patent license for the specification granted to You under this License shall terminate as of the date such litigation is filed.

If You assert, in litigation (including a cross claim or counter claim in a lawsuit) or otherwise (including in a licensing discussion) any patent rights against either Philip Zimmermann or his assignee, then any patent license for the specification granted to You under this License shall terminate immediately.

If the "ZRTP Disclosure Flag" in the ZRTP specification is applicable to Your implementation, and You knowingly fail to properly implement it in a truthful manner, and You are informed of this fact and fail to remedy it within 90 days, then any patent license for the specification granted to You under this License shall terminate.

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

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Philip R. Zimmermann Submitter name Philip R. Zimmermann
prz@mit.edu Submitter email prz@mit.edu

VIII. Other Notes

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

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.