Walker Process Equipment, Inc. v. Food Machinery & Chemical Corp.

Decided December 6, 1965. Tom C. Clark delivered the opinion of the Court.

Docket 13 · 382 U.S. 172 (1965) · Cited 902 times

We don’t yet publish a summary of this opinion — read the official text below for the Court’s holding and reasoning.

How the Justices voted

Decided 9–0.

“Concurring” means agreeing with the outcome; any split shown is the Court’s judgment, not each Justice’s reasoning. Source: the Supreme Court Database (Spaeth et al.), Washington University.

Precedents cited

Supreme Court decisions this opinion relies on, ordered by how often it cites each. Cases in our collection link through; others are named.

• Precision Instrument Manufacturing Co. v. Automotive Maintenance MacHinery Co. · 324 U.S. 806 (1945)
• Hazel-Atlas Glass Co. v. Hartford-Empire Co. · 322 U.S. 238 (1944)
• Kerotest Manufacturing Co. v. C-O-Two Fire Equipment Co. · 342 U.S. 180 (1952)
• White Motor Co. v. United States · 372 U.S. 253 (1963)
• Keystone Driller Co. v. General Excavator Co. · 290 U.S. 240 (1933)
• Mercoid Corp. v. Mid-Continent Investment Co. · 320 U.S. 661 (1944)

Cited by

Later Supreme Court opinions in our collection that cite this case.

• F.T.C. v. Actavis, Inc. · 570 U.S. 136 (2013)
• California Motor Transport Co. v. Trucking Unlimited · 404 U.S. 508 (1972)
• Vendo Co. v. Lektro-Vend Corp. · 433 U.S. 623 (1977)
• Professional Real Estate Investors, Inc. v. Columbia Pictures Industries, Inc. · 508 U.S. 49 (1993)
• Hudson v. Palmer · 468 U.S. 517 (1984)
• Paul v. Davis · 424 U.S. 693 (1976)
• Jenkins v. McKeithen · 395 U.S. 411 (1969)
• Blonder-Tongue Laboratories, Inc. v. University of Illinois Foundation · 402 U.S. 313 (1971)
• Eastman Kodak Co. v. Image Technical Services, Inc. · 504 U.S. 451 (1992)
• Spectrum Sports, Inc. v. McQuillan · 506 U.S. 447 (1993)
• Lear, Inc. v. Adkins · 395 U.S. 653 (1969)
• Rosewell v. LaSalle National Bank · 450 U.S. 503 (1981)
• Unitherm Food Systems, Inc. v. Swift-Eckrich, Inc. · 546 U.S. 394 (2006)
• Hoover v. Ronwin · 466 U.S. 558 (1984)
• Textron Lycoming Reciprocating Engine Division v. United Automobile, Aerospace & Agricultural Implement Workers · 523 U.S. 653 (1998)
• Ohio v. American Express Co. · 585 U.S. 529 (2018)

Official text

Read the official opinion (U.S. Reports, govinfo.gov)

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Source: the U.S. Reports via govinfo.gov; authoring Justice and vote lineup from the Supreme Court Database (Washington University). Citation count from the Free Law Project’s CourtListener bulk data. Data last verified 2026-07-03. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).