Inventor · disambiguated record
Joseph R. Harkness
Also filed as: HARKNESS JOSEPH R
14 granted patents·439 citations·filing 1975–1992
94Inventor score
Files withBRIGGS & STRATTON CORP14
Top patents by PatentIndex Score
14 records- 0198US4090345ABrake safety system for a power driven rotary mowerBRIGGS & STRATTON CORP·Filed 1976·Granted May 23, 1978·99 cites·6 claims
- 0290USD308871SInternal combustion engineBRIGGS & STRATTON CORP·Filed 1988·Granted Jun 26, 1990·30 cites·1 claims
- 0388US4003190ASafety device for walk-behind rotary mowersBRIGGS & STRATTON CORP·Filed 1975·Granted Jan 18, 1977·46 cites·7 claims
- 0487US4819593APivoting balancer systemBRIGGS & STRATTON CORP·Filed 1988·Granted Apr 11, 1989·55 cites·17 claims
- 0583USD308872SInternal combustion engineBRIGGS & STRATTON CORP·Filed 1988·Granted Jun 26, 1990·21 cites·1 claims
- 0681US3981289AAutomatic compression relief mechanism for internal combustion enginesBRIGGS & STRATTON CORP·Filed 1975·Granted Sep 21, 1976·30 cites·9 claims
- 0780US4205737AClutch-brake mechanism for rotary mower enginesBRIGGS & STRATTON CORP·Filed 1977·Granted Jun 3, 1980·23 cites·6 claims
- 0877US5282397AEngine balancing system having at least one pivoting counterbalance weightBRIGGS & STRATTON CORP·Filed 1992·Granted Feb 1, 1994·36 cites·20 claims
- 0973US4037389ABrake safety system for a power driven rotary mowerBRIGGS & STRATTON CORP·Filed 1976·Granted Jul 26, 1977·24 cites·15 claims
- 1072US4414934AReciprocating piston-type internal combustion engine with improved balancing systemBRIGGS & STRATTON CORP·Filed 1981·Granted Nov 15, 1983·30 cites·5 claims
- 1169US4048787ACombination clutch and brake for rotary power mowerBRIGGS & STRATTON CORP·Filed 1976·Granted Sep 20, 1977·19 cites·11 claims
- 1266US4048788ARotary power mower with improved clutch and brake mechanismBRIGGS & STRATTON CORP·Filed 1976·Granted Sep 20, 1977·19 cites·12 claims
- 1333US3971353ABendix-type engine starter with mechanical lookout to prevent undesired starting of engineBRIGGS & STRATTON CORP·Filed 1975·Granted Jul 27, 1976·5 cites·11 claims
- 1431US4895119ASpeed governing apparatusBRIGGS & STRATTON CORP·Filed 1988·Granted Jan 23, 1990·2 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →