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IPR Details
Yahoo! 's General License Statement

Submitted: May 7, 2013 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.


Updated by

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

Holder legal name Yahoo!

II. Patent Holder's Contact for License Application

Holder contact name Ray Strimaitis
Holder contact email
Holder contact info

Associate General Counsel
701 First Avenue
Sunnyvale, CA 94089
T: 408-336-3902

III. 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:

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

US Patents 6,986,049 and 7,313,700
Date: 1/10/06, 12/23/07
Country: US

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending No

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):

See text box below for licensing declaration.

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

Yahoo! is the owner of the Subject Patents listed below relating to the subject
matter in the Internet Calendar Scheduling Protocol (iSchedule) If technology
in this document is included in a standard adopted by IETF ("the Standard") and
any claims of the Subject Patents are necessary for practicing the Standard, any
party will have the right to use any such patent claims (“Subject Claims”) under
reasonable, non-discriminatory terms, with reciprocity, to implement and fully
comply with the Standard.

The reasonable, non-discriminatory terms are:
In the event that the Standard is adopted by IETF, Yahoo! will not assert the
Subject Claims against any party for making, using, selling, importing or
offering for sale a product that implements and fully complies with the
Standard, provided, however that Yahoo! retains the right to assert the Subject
Claims (including the right to claim past royalties) against any party that
asserts a patent it owns or controls (either directly or indirectly) against
Yahoo or any of Yahoo's affiliates or successors in title; and Yahoo retains the
right to assert the Subject Claims against any product or portion thereof that
is not necessary for compliance with the Standard.
Royalty-bearing licenses will be available to anyone who prefers that option.

“Subject Patents/Applications” means US Patents 6,986,049 and 7,313,700

V. Contact Information of Submitter of this Form

Submitter name Ray Strimaitis
Submitter email

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