Case 7:24-cv-00231-ADA Document 64-5 Filed 06/10/26 Pageilof5

EXHIBIT 4


IN THE UNITED STATES PATENT AND TRADEMARK OFFICE

In re patent of Wolfe, et al. Attorney Docket No.:

500712.000038
US. Patent 8,549,339

Customer No.: 47604
Issue Date: October 1, 2013

Filing Date: February 26, 2010

For: PROCESSOR CORE
COMMUNICATION IN MULTI-
CORE PROCESSOR

COR SOR YOR GR WOR OR SOR On OR YOR WOR WOR MOR

REQUEST FOR EX PARTE REEXAMINATION OF
U.S. PATENT 8,549,339

Mail stop “Ex Parte Reexam”’
Attn: Central Reexamination Unit
Commissioner for Patents
P.O. Box 1450
Alexandria, VA 22313-1450
Dear Commissioner:

Pursuant to the provisions of 35 U.S.C. §8 301-307, Advanced Micro Devices,
Inc. (“Requester”) hereby requests an ex parte reexamination of claims 1-5, 8-11,
14, and 21 (the “Challenged Claims”’) of U.S. Patent 8,549,339 (the “’339 Patent,
Ex. 1001”), which issued on October 1, 2013 to Wolfe et al. from U.S. Patent

Application 12/713,220 (the “’220 Application”) filed on February 26, 2010.! The

' At this time, Requester assumes this priority date is correct.
1


°339 Patent is currently assigned Redstone Logics LLC (“Redstone” or “Patent
Owner’). The assignment is recorded in the U.S. Patent and Trademark Office
(“USPTO”) at reel/frame 062120/0206, 064575/0934, 048373/0217, and
024009/0530.

Requester submits that this Request presents substantial new questions of
patentability based on prior art references that are non-cumulative of the
considerations that were before the Examiner during the original prosecution of the
°339 Patent. Requester also submits that this Request shows that the Challenged
Claims are invalid over these references. Requester therefore requests that an order
for reexamination and an Office Action rejecting claims 1-5, 8-11, 14, and 21 be
issued.

Ex Parte Patent Reexamination Filing Requirements

Pursuant to 37 C.F.R. § 1.510(b)(1), statements pointing out at least one
substantial new question of patentability based on material, non-cumulative reference
patents and printed publications for the Challenged Claims of the °339 Patent are
provided in Sections I and II of this Request.

Pursuant to 37 C.F.R. § 1.510(b)(2), reexamination of the Challenged Claims
of the *339 Patent is requested, and a detailed explanation of the pertinence and
manner of applying the cited references to the Challenged Claims is provided in

Section IT of this Request.

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Request for x Parte Reexamination, U.S. Patent 8,549,339

Name Number District Status
Redstone Logics LLC v. NXP 7-24-cv-00028 | W.D. Tex. Terminated
Semiconductors NV
pccistone Logics LLCY Meal 7 44.¢y-00029 | W.D.Tex.| Terminated

Redstone Logics LLC v. Samsung

Electronics Co. 2-23-cv-00485 | E.D. Tex. Terminated

IV. CONCLUSION

The Commissioner is hereby authorized to charge Deposit Account Number
503266 under Docket No. 500712.000038 the £x Parte Reexamination fee of
$13,545 under 37 C.F.R. § 1.20(c)(1). Requester believes no other fee is due with
this submission, however the Commissioner is hereby authorized to charge any fee
deficiency or credit any over-payment to Deposit Account Number 503266.

Please direct all correspondence in this matter to the undersigned.

120


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Request for x Parte Reexamination, U.S. Patent 8,549,339

Dated: December 9, 2025 Respectfully submitted,

/Jennifer Librach Nall/
Jennifer Librach Nall

Reg. No. 57,053

Michael Saulnier

Reg. No. 78,432

DLA PIPER LLP (US)

303 Colorado St., Suite 3000
Austin, TX 78701
Telephone: (512) 457-7000
Facsimile: (512) 457-7001

Daniel Valencia

Reg. No. 56,463

DLA PIPER LLP (US)

500 Eighth Street, NW
Washington, DC 20004
Telephone: (202) 799-4000
Facsimile: (202) 799-5000
Daniel valencia@ons digniper com

Chris M. Katsantonis

Reg. No. 78,388

DLA PIPER LLP (US)

444 West Lake Street, Suite 900
Chicago, IL 60606

Telephone: (312) 368-4000
Facsimile: (312) 236-7516

Attorneys for Advanced Micro Devices,
Ine.

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