Individual holder
HEMPHILL CHARLES W
8 granted patents·221 citations·filing 1977–1987
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
8 records- 0196US4133121ABackhoe bucket adapter bushing and pin method and apparatusHEMPHILL CHARLES W·Filed 1977·Granted Jan 9, 1979·74 cites·5 claims
- 0292US4123861AMethod of excavating earth with a bucketHEMPHILL CHARLES W·Filed 1977·Granted Nov 7, 1978·47 cites·26 claims
- 0378US4321762ADigging tooth apparatus for V bottom bucketHEMPHILL CHARLES W·Filed 1979·Granted Mar 30, 1982·23 cites·15 claims
- 0477US4207693ABackhoe bucket adapter bushing and pin method and apparatusHEMPHILL CHARLES W·Filed 1978·Granted Jun 17, 1980·22 cites·8 claims
- 0570US4835888AExcavating tooth and holder thereforHEMPHILL CHARLES W·Filed 1987·Granted Jun 6, 1989·24 cites·17 claims
- 0666US4251933ALip and teeth in combination with a flat bottom bucketHEMPHILL CHARLES W·Filed 1979·Granted Feb 24, 1981·16 cites·9 claims
- 0742US4713897AReversible digging teeth and holder thereforHEMPHILL CHARLES W·Filed 1985·Granted Dec 22, 1987·9 cites·3 claims
- 0839US4507924ASystem for efficiently converting hydrocarbons into powerHEMPHILL CHARLES W·Filed 1982·Granted Apr 2, 1985·6 cites·44 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →