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Fed. Cir.

Lemko Corp. v. Microsoft Corporation, No. 24-2336 (Fed. Cir. Apr. 10, 2026)

Affirmed
Rule 36 Affirmance
Court
U.S. Court of Appeals for the Federal Circuit
Case No.
No. 24-2336
Decided
April 10, 2026
Judge
Per curiam (Rule 36)
Document
Rule 36 Judgment
Length
2 pages
Download Opinion (PDF)

NOTE: This disposition is nonprecedential. United States Court of Appeals

for the Federal Circuit

LEMKO CORP.,

Appellant

v.

MICROSOFT CORPORATION, AFFIRMED

NETWORKS, INC.,

Appellees

2024-2336

Appeal from the United States Patent and Trademark Office, Patent Trial and Appeal Board in No. IPR2023-00531.

JUDGMENT

AARON M. FRANKEL, Herbert Smith Freehills Kramer (US) LLP, New York, NY, argued for appellant. Also represented by JEFFREY ENG, JENNA FULLER, JEFFREY PRICE; PAUL J. ANDRE, JAMES R. HANNAH, LISA KOBIALKA, Redwood Shores, CA. MATTHEW R. MCCULLOUGH, Winston & Strawn LLP, Redwood City, CA, argued for appellees. Also represented2 by MICHAEL RUECKHEIM, King & Spalding LLP, San Francisco, CA. THIS CAUSE having been heard and considered, it is ORDERED and ADJUDGED: P C (H and S , Circuit Judges, and

ER URIAM UGHES TOLL

SEEBORG, Chief District Judge1).

AFFIRMED. See Fed. Cir. R. 36.

ENTERED BY ORDER OF THE COURT

Figure on page 2 of the opinion

April 10, 2026

Date

Footnotes

  1. ↩ 1 Honorable Richard Seeborg, Chief District Judge, United States District Court for the Northern District of California, sitting by designation.

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Cite this opinion

Lemko Corp. v. Microsoft Corporation, No. 24-2336 (Fed. Cir. Apr. 10, 2026).

Record ID
CAFC-24-2336-20260410
Permalink
https://patentcasewatch.com/opinions/CAFC-24-2336-20260410

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Source: Federal Circuit opinions and orders · retrieved August 15, 2026 · Report an error