IPR Details
Yahoo! Inc.'s Statement about IPR related to RFC 6376

Submitted: September 26, 2011

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
Yahoo! Inc.

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

Holder contact name
Andy Chen
Holder contact email
Holder contact info

Patent Counsel
Yahoo! Inc.
701 First Avenue, Sunnyvale, CA 94089
T: 415-262-7066

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

Andy Chen
Other info

Patent Counsel
Yahoo! Inc.
701 First Avenue, Sunnyvale, CA 94089
T: 415-262-7066

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

RFC6376 ("DomainKeys Identified Mail (DKIM) Signatures")

'V'. 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)

6986049, 7313700 (the previously pending PCT applications WO 2005/026921 and WO 2005/089343 have been abandoned)
Date: 1/10/06, 12/23/07
Country: US, US

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending

'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):

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

Yahoo! licenses its Necessary Patent Claims contained in the patents and
patent applications disclosed above under either of two separate license
agreements, one of which is the DomainKeys Patent License Agreement (v1.2), and
the other is the GNU General Public License v2.0 (and no other version).

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
Andy Chen
Submitter email

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