`United States Patent and Trademark Office
`Patent Trial and Appeal Board
`
`POWER OF ATTORNEY FOR PROCEEDINGS
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`I hereby appotin:
`
`X
`
`The Practitioner(s) associated with USPTO Customer No. 108491 as attorney(s) to prosecute proceedings before the
`Patent Trial and Appeal Board as lead or backup counsel.
`
`The individual whose signature and title are below is authorized to act on behalf of Sable Networks, Inc.:
`
`X
`
`X
`
`Daniel P. Hipskind, Backup Counsel, Pro hac vice (request to be filed)
`Eric B. Hanson, Backup Counsel, Pro hac vice (request to be filed)
`Telephone Number: (323) 886—3430
`BERGER & HlPSKlND LLP, 9538 Brighton Way, Suite 320, Beverly Hills, CA 90210
`
`Nathan Lowenstein, Backup Counsel, Pro hac vice (request to be filed)
`Telephone Number: (310) 307-4500
`LOWENSTEIN & WEATHERWAX LLP, 1880 Century Park East, Suite 815, Los Angeles, CA 90067
`
`X
`
`Please direct all electronic correspondence to:
`
`Sable_lPRs@Iowensteinweathen/vax.com
`
`Name and Address of Real Party in Interest:
`
`Sable Networks, Inc.
`3171 Jay Street
`Santa Clara, CA 95054
`
`SIGNATURE of Sable Networks, Inc.
`
`