`
`In re Patent of:
`U.S. Patent No.:
`Issue Date:
`Appl. Serial No.:
`Filing Date:
`Title:
`
`Chang Kwon, et al.
`8,063,674
`November 22, 2011
`12/365,559
`February 4, 2009
`MULTIPLE SUPPLY-VOLTAGE POWER—UP/DOWN
`DETECTORS
`
`Mail Stop Patent Board
`Patent Trial and Appeal Board
`U.S. Patent and Trademark Office
`PO. Box 1450
`
`Alexandria, VA 22313-1450
`
`
`
` I’ETITI NE R‘S P WER F AT'I‘
`
`Petitioner, Apple Inc., hereby appoints the following practitioners as its attorneys to
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`transact all business in the United States Patent & Trademark Office associated with any inter
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`partes review, covered business method review, post grant review, or other review proceedings
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`before the Patent Trial and Appeal Board of the above—captioned patent:
`
`W. Karl Renner, Reg. No. 41, 265
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`Thomas A. Rozylowicz, Reg. No. 50,620
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`Timothy W. Riffe, Reg. No. 43,881
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`and all practitioners associated with PTO Customer Number 26171.
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`I have the authority to execute this document on behalf of Apple Inc.
`
`Apple Inc.
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` . ant Secretary
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`Date:
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`6 June 2018
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`