Duff v. Sterling Pump Co.’s Empirical Analysis
107 U.S. 636 · 1882
Citation profile
44 federal appellate · 20 district · 1 state decisions
How this case has been cited
Cited by 130 later decisions (9 by the Supreme Court) — most recently August 1995 · most notably Continental Paper Bag Company v. Eastern Paper Bag Company (1908), Sanitary Refrigerator Co. v. Winters (1929)
44 federal appellate · 20 district · 1 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
Relies on Railway Company v. Sayles · Merrill v. Yeomans · Keystone Bridge Company v. Phoenix Iron Company · Burns v. Meyer
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 130 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
““The case is one where, in view of the state of the art, the invention must be restricted to the fdrm shown and described by the patentee. In the field of wash-boards made of sheet metal, with the surface broken into protuberances formed of the body of the metal, so as to make a rasping surface, and to strengthen the metal by its form, and to provide channels for the water to rün off, Todd was not a pioneer. He merely devised a new form to accomplish these results. Railway Co. v. Sayles, 97 U. S. 554 . The- defendant adopts another form. Under such circumstances the Todd patent cannot be extended so as to embrace the defendant’s form. The latter is not a mere colorable departure from the form of Todd, but is a substantial departure. Those views are in accordance with those heretofore announced by this court in Merrill v. Yeomans, 94 U. S. 568 ; Bridge Co. v. Iron Co., 95 U. S. 274 , and Burns v. Meyer, 100 U. S. 671 .””
2 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.