Ackermann v. United States’s Empirical Analysis
340 U.S. 193 · 1950
Citation profile
920 federal appellate · 372 district · 350 state decisions
How this case has been cited
Cited by 2,548 later decisions (33 by the Supreme Court) — most recently June 2025 · most notably Pioneer Investment Services Company v. Brunswick Associates Limited Partnership (1993), Federated Department Stores, Inc. v. Moitie (1981)
920 federal appellate · 372 district · 350 state decisions — followed in 30 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
reviewedAckermann v. United States (from Fifth Circuit Court of Appeals)
Relationships
Relies on Bell v. Hood · Klapprott v. United States · Brown v. Western Railway · Munro v. United States
Cited together with Klapprott v. United States · Liljeberg v. Health Services Acquisition Corp. · United States v. Swift & Co. · Pioneer Investment Services Company v. Brunswick Associates Limited Partnership · Browder v. Director Department of Corrections of Illinois
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 2,548 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“any other reason justifying relief from the operation of the judgment.”
75 later decisions quote this exact passage · from the majority“There must be an end to litigation someday, and free, calculated, deliberate choices are not to be relieved from.”
55 later decisions quote this exact passage · from the majority“the Klapprott case was a case of extraordinary circumstances [and this is what] brought it within Rule 60(b)(6).”
11 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.