Hanon v. Dataproducts Corp.’s Empirical Analysis
976 F.2d 497 · 1992
Citation profile
82 federal appellate · 57 district · 14 state decisions
How this case has been cited
Cited by 482 later decisions — most recently March 2024 · most notably Mayer v. Mylod (1993), Robin Zinser v. Accufix Research Institute, Inc. (2001)
82 federal appellate · 57 district · 14 state decisions
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
reviewedthe decision below (from Hawaii District Court)
Relationships
Relies on Anderson v. Liberty Lobby, Inc. · Matsushita Electric Industrial Co., Ltd. v. Zenith Radio Corporation · Ohio Bureau of Employment Services v. Hodory · Eisen v. Carlisle & Jacquelin · General Telephone Co. of Southwest v. Falcon
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 482 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“The test of typicality 'is whether other members have the same or similar injury, whether the action is based on conduct which is not unique to the named plaintiffs, and whether other class members have been injured by the same course of conduct.'”
18 later decisions quote this exact passage · from the majority“"Several courts have held that 'class certification is inappropriate where a putative class representative is subject to unique defenses which threaten to become the focus of the litigation.' Gary Plastic Packaging Corp. v. Merrill Lynch, Pierce, Fenner & Smith, Inc. , 903 F.2d 176 , 180 (2d Cir. 1990), cert. denied , 498 U.S. 1025 , 111 S.Ct. 675 , 112 L.Ed. 2d 667 (1991) ; see also J.H. Cohn & Co. v. American Appraisal Assoc., Inc. , 628 F.2d 994 , 998-99 (7th Cir. 1980) ; Hoexter v. Simmons , 140 F.R.D. 416 , 422-23 (D. Ariz. 1991) (plaintiffs['] claims atypical of class because unique defense could be asserted against them); Rolex Employees Retirement Trust v. Mentor Graphics Corp. , 136 F.R.D. 658 , 664 (D. Or. 1991) ('The certification of a class is questionable where it is predictable that a major focus of the litigation will be on an arguable defense unique to the named plaintiff or to a subclass.')."”
5 later decisions quote this exact passage · from the majority“(1) that the statement is genuinely believed, (2) that there is a reasonable basis for that belief, and (3) that the speaker is not aware of any undisclosed facts tending to seriously undermine the accuracy of the statement.”
5 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.