Cipollone v. Liggett Group, Inc.’s Empirical Analysis
1992
Citation profile
1,042 federal appellate · 540 district · 1,468 state decisions
How this case has been cited
Cited by 4,886 later decisions (76 by the Supreme Court) — most recently June 2026 · most notably United States v. Lopez (1995), Medtronic, Inc. v. Lohr (1996)
1,042 federal appellate · 540 district · 1,468 state decisions — followed in 46 states
Later decisions citing this case, by decade. The current decade is in progress, and our corpus holds fewer opinions from the most recent years, so the latest bars are undercounted — not a real decline.
Appellate journey
reviewedCipollone v. Liggett Group, Inc. (from Third Circuit Court of Appeals)
Relationships
Applies 12 U.S.C. § 1715Z · 15 U.S.C. § 1331 (Sherman Antitrust Act) · 15 U.S.C. § 1334 (Sherman Antitrust Act) · 15 U.S.C. § 1336 (Sherman Antitrust Act) · 15 U.S.C. § 4401 (Federal Trade Commission Act of 1914) · 15 U.S.C. § 4406 (Federal Trade Commission Act of 1914) · 17 U.S.C. § 301 (§ 101 of the Copyright Act of 1976) · 28 U.S.C. § 1292
Relies on Erie Co v. Tompkins · Will v. Michigan Department of State Police · Shaw v. Delta Air Lines, Inc. · San Diego Building Trades Council v. Garmon · Hines v. Davidowitz
Cited together with Rice v. Santa Fe Elevator Corp. · Medtronic, Inc. v. Lohr · Hines v. Davidowitz · English v. General Electric Co. · Fidelity Federal Savings and Loan Association v. D Cuesta
Most-quoted passages
The sentences later courts lift from this opinion, ranked by how many decisions quote each — the parts of the opinion doing the work. These counts are smaller than the citation total above because most of the 4,886 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“Congress' enactment of a provision defining the pre-emptive reach of a statute implies that matters beyond that reach are not pre-empted.”
428 later decisions quote this exact passage“stands as an obstacle to the accomplishment and execution of the full purposes and objectives of Congress.”
42 later decisions quote this exact passage · from the dissent“`requirement[s]' imposed by an express warranty claim are not `imposed under State law,' but rather imposed by the warrantor.”
23 later decisions quote this exact passage · from the majority
How this case has been treated — in progress
Whether each later court followed, distinguished, criticized, or overruled this decision. The treatment classification (task #35) runs highest-cited cases first and lights up here as it reaches this one.