Roanwell Corp. v. Plantronics, Inc.’s Empirical Analysis
1976
Citation profile
101 federal appellate · 12 district · 22 state decisions
How this case has been cited
Cited by 171 later decisions — most recently December 2003 · most notably United States v. Bright (1980), United States v. Heldt (1981)
101 federal appellate · 12 district · 22 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.
Relationships
Applies 35 U.S.C. § 103
Relies on Graham v. John Deere Company of Kansas City Calmar Inc · Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp. · Anderson's-Black Rock, Inc. v. Pavement Salvage Co. · Julia Hotchkiss Executrix of John Hotchkiss Deceased John Davenport and John Quincy v. Miles Greenwood · Sakraida v. Ag Pro, Inc.
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 171 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“Thus, to be patentable, a combination of elements must produce something more than the sum of the pre-existing elements; there must be a synergistic result that is itself nonobvious(ness).”
2 later decisions quote this exact passage · from the dissent
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.