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IPR Details
Sorenson IP Holdings LLC's Statement about IPR related to draft-rosen-rue

Submitted: September 12, 2019 under the rules in RFC 8179.

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 Sorenson IP Holdings LLC

II. Patent Holder's Contact for License Application

Holder contact name Kerry Brown
Holder contact email
Holder contact info

Deputy General Counsel – Intellectual Property
4192 South Riverboat Road
Salt Lake City, Utah 84123

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

Name Isaac Roach
Other info

VP Engineering
4192 South Riverboat Road
Salt Lake City, Utah 84123

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

draft-rosen-rue ("Interoperability Profile for Relay User Equipment")
6.2.1; 6.4

V. Disclosure of Patent Information
i.e., patents or patent applications required to be disclosed by RFC 8179

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

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

Date: 2017-02-14
Title: Communication systems, communication devices, and related methods for routing calls between communication devices having users with different abilities
Number: US9571788
Inventor: Michael, Hamling; Brett Thelin; Scot L. Brooksby; et al.

B. Does this disclosure relate to an unpublished pending patent application?:

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):

Licensing Unwilling to Commit to the Provisions of a), b), or c) Above
Licensing information, comments, notes, or URL for further information

(No information submitted)

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 Kerry Brown
Submitter email

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