Briggs & Stratton, LLC
770Patents
440Active
770Granted
57Portfolio score
Filing activity: Aug 20, 1974 → Jan 26, 2024 · 100 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5852951A | Composite gear and method of making same | Emerging Cross-Sectional Technologies | 112 | Expired |
| US5086890A | Engine braking system | Emerging Cross-Sectional Technologies | 103 | Expired |
| US4090345A | Brake safety system for a power driven rotary mower | Human Necessities | 92 | Expired |
| US5606851A | Battery-powered lawn cutting system | Emerging Cross-Sectional Technologies | 91 | Expired |
| US7356384B2 | Load management system | Emerging Cross-Sectional Technologies | 84 | Expired |
| US5388176A | DC motor speed control system | Emerging Cross-Sectional Technologies | 75 | Expired |
| US7148580B2 | Method of and system for starting engine-driven power equipment | Emerging Cross-Sectional Technologies | 69 | Expired |
| USD776610S1 | Battery | General | 68 | Active |
| US4233043A | Air cleaner for internal combustion engine | Emerging Cross-Sectional Technologies | 65 | Expired |
| US7161253B2 | Portable power source | Emerging Cross-Sectional Technologies | 61 | Expired |
| US7104233B2 | Engine oil heater | Electricity | 56 | Expired |
| USD548750S1 | Engine cover | General | 55 | Expired |
| USD527022S1 | Engine cover | General | 54 | Expired |
| US7314397B2 | Standby generator | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| US5197426A | Integral engine housing | Mechanical Engineering; Lighting; Heating | 47 | Expired |
| US7282077B2 | Air cleaner assembly | Emerging Cross-Sectional Technologies | 47 | Expired |
| US5320795A | Molded camshaft assembly | Emerging Cross-Sectional Technologies | 45 | Expired |
| USD525991S1 | Engine cover | General | 45 | Expired |
| US6230678A | Starting and stopping device for internal combustion engine | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5058542A | Rocker box cover assembly for internal combustion engine | Mechanical Engineering; Lighting; Heating | 45 | Expired |
| US5338903A | Combination muffler and catalytic converter | Emerging Cross-Sectional Technologies | 45 | Expired |
| USD513012S1 | Cover for an engine | General | 44 | Expired |
| US4355253A | Combination end bell and brush holder for a dynamoelectric machine | Electricity | 44 | Expired |
| US4630498A | Laminated wheel assembly | Emerging Cross-Sectional Technologies | 44 | Expired |
| US6369532B2 | Control system for an electric motor having an integral flywheel rotor | Mechanical Engineering; Lighting; Heating | 44 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.