Inventor · disambiguated record
Frank Hartshorn
Also filed as: HARTSHORN FRANK
5 granted patents·14 citations·filing 1981–1992
72Inventor score
Technology areasA43D
Top patents by PatentIndex Score
5 records- 0132US4400839AMachine for lasting heel seat portions of shoesUSM CORP·Filed 1982·Granted Aug 30, 1983·6 cites·6 claims
- 0231US4404701AShoe supportUSM CORP·Filed 1982·Granted Sep 20, 1983·4 cites·7 claims
- 0329US4467487AShoe upper conforming machineUSM CORP·Filed 1981·Granted Aug 28, 1984·3 cites·16 claims
- 0424US5303442AMachine for lasting side portions of shoe uppersBRITISH UNITED SHOE MACHINERY·Filed 1992·Granted Apr 19, 1994·0 cites·15 claims
- 0524US4435869AShoe lasting machinesUSM CORP·Filed 1981·Granted Mar 13, 1984·1 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →