Brumfield v. Ibg LLC

Oral argument

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Source: CourtListener oral-argument corpus (CC0).

How courts have described this case

Verbatim parenthetical descriptions written by other courts when citing this decision. Ranked by citation-network relevance.

• analyzing eligibility based on the “claims, understood in light of the specification”
• plaintiff “has not explained how such upgrade value would be anything but the value of features beyond what is required by the patent claims”
• “The foundational principle is that the royalty due for patent infringement should be the value of what was taken—the value of the use of the patented technology.”

Source: CourtListener parenthetical corpus (CC0).

Cited by

4 cases in this archive cite this case.

• Utto Inc. v. Metrotech Corp.
  Federal Circuit· 2024-10-18· cited 14×
• Cotter Corp., N.S.L. v. United States
  Federal Circuit· 2025-02-10· cited 7×
• Trustees of Columbia University v. Gen Digital Inc.
  Federal Circuit· 2026-03-11
• 9878866 Canada Inc. v. Intake Breathing Technology, LLC
  District of Columbia· 2026-04-27

Cites

68 cases in this archive are cited by this case; the 20 most cited are listed.

• Edward H. Phillips v. Awh Corporation, Hopeman Brothers, Inc., and Lofton Corporation, Defendants-Cross
  Federal Circuit· 2006-02-21· cited 3,273×
• Lexmark Int'l, Inc. v. Static Control Components, Inc.
  Supreme Court· 2014-03-25· cited 2,704×
• Warner-Jenkinson Co. v. Hilton Davis Chemical Co.
  Supreme Court· 1997-03-03· cited 1,430×
• Morrison v. National Australia Bank Ltd.
  Supreme Court· 2010-06-24· cited 1,211×
• Enfish, LLC v. Microsoft Corporation
  Federal Circuit· 2016-05-12· cited 648×
• Anza v. Ideal Steel Supply Corp.
  Supreme Court· 2006-06-05· cited 587×
• Electric Power Group, LLC v. Alstom S.A.
  Federal Circuit· 2016-08-01· cited 524×
• Continental Paper Bag Co. v. Eastern Paper Bag Co.
  Supreme Court· 1908-06-01· cited 504×
• General Motors Corp. v. Devex Corp.
  Supreme Court· 1983-05-24· cited 494×
• Lucent Technologies, Inc. v. Gateway, Inc.
  Federal Circuit· 2009-09-11· cited 489×
• Rite-Hite Corp. v. Kelley Co.
  Federal Circuit· 1995-06-15· cited 449×
• Aro Manufacturing Co. v. Convertible Top Replacement Co.
  Supreme Court· 1964-06-08· cited 418×
• W.L. Gore & Associates, Inc., Appellant/cross-Appellee v. Garlock, Inc., Appellee/cross-Appellant
  Federal Circuit· 1983-11-14· cited 366×
• Ultramercial, Inc. v. Hulu, LLC
  Federal Circuit· 2014-11-14· cited 347×
• Ntp, Inc. v. Research in Motion, Ltd.
  Federal Circuit· 2005-08-02· cited 302×
• SAP Am., Inc. v. InvestPic, LLC
  Federal Circuit· 2018-05-15· cited 276×
• Schillinger v. United States
  Supreme Court· 1894-11-19· cited 270×
• Carbice Corp. of America v. American Patents Development Corp.
  Supreme Court· 1931-03-09· cited 270×
• Dowling v. United States
  Supreme Court· 1985-06-28· cited 268×
• Bank of Am. Corp. v. City of Miami
  Supreme Court· 2017-05-01· cited 263×

Other cases named Brumfield v. Ibg LLC

1 other CourtListener record shares this case name.

• Brumfield v. Ibg LLC
  Federal Circuit· 2024-03-27