Inventor · disambiguated record
Stephen J. Hoff
Also filed as: HOFF STEPHEN J
19 granted patents·525 citations·filing 1975–1990
96Inventor score
Files withHOFFCO INC19
Top patents by PatentIndex Score
19 records- 0196US4226021AShaft assembly for lawn trimmerHOFFCO INC·Filed 1978·Granted Oct 7, 1980·73 cites·15 claims
- 0296US4035994ALawn mower blade control apparatusHOFFCO INC·Filed 1975·Granted Jul 19, 1977·47 cites·8 claims
- 0394US4188719ALawn trimmer chain saw attachmentHOFFCO INC·Filed 1978·Granted Feb 19, 1980·68 cites·15 claims
- 0492US4316355ACombined flywheel and clutch mechanism for lawn mower bladeHOFFCO INC·Filed 1980·Granted Feb 23, 1982·41 cites·24 claims
- 0591US4102214AVariable-speed pulley and clutchHOFFCO INC·Filed 1976·Granted Jul 25, 1978·43 cites·19 claims
- 0686US4148141ALawn trimmer cutter headHOFFCO INC·Filed 1978·Granted Apr 10, 1979·36 cites·15 claims
- 0776US5048616AGarden tiller tine assemblyHOFFCO INC·Filed 1990·Granted Sep 17, 1991·31 cites·19 claims
- 0875US4126928AMethod of making a shaft assemblyHOFFCO INC·Filed 1977·Granted Nov 28, 1978·25 cites·15 claims
- 0974US4633978ABrake caliper includes mechanical actuator with camming device and manual wear compensatorHOFFCO INC·Filed 1985·Granted Jan 6, 1987·21 cites·26 claims
- 1073US4416107ALawn mower blade control mechanismHOFFCO INC·Filed 1982·Granted Nov 22, 1983·26 cites·17 claims
- 1173US4148173ALawn mower blade control apparatusHOFFCO INC·Filed 1977·Granted Apr 10, 1979·20 cites·12 claims
- 1265US4335585ALawn trimmer constructionHOFFCO INC·Filed 1980·Granted Jun 22, 1982·19 cites·8 claims
- 1361US4326368AClutch and brake for rotary lawn mowerHOFFCO INC·Filed 1980·Granted Apr 27, 1982·18 cites·16 claims
- 1460US4277936ACombined flywheel and clutch driver, and control and warning deviceHOFFCO INC·Filed 1979·Granted Jul 14, 1981·15 cites·15 claims
- 1560US4088210AClutches with brake for implementsHOFFCO INC·Filed 1976·Granted May 9, 1978·16 cites·6 claims
- 1650US4152881ALawn mower blade rotation warning deviceHOFFCO INC·Filed 1977·Granted May 8, 1979·10 cites·9 claims
- 1740US4297829ALawn mower blade rotation warning deviceHOFFCO INC·Filed 1980·Granted Nov 3, 1981·7 cites·10 claims
- 1840US4221284AClutch and brake assembly for implement driveHOFFCO INC·Filed 1978·Granted Sep 9, 1980·5 cites·1 claims
- 1934US4428184ASafety mounting for lawn mower bladeHOFFCO INC·Filed 1982·Granted Jan 31, 1984·4 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →