Champion Spark Plug Company
107Patents
0Active
107Granted
42Portfolio score
Filing activity: Apr 19, 1972 → Apr 5, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3984768A | Apparatus for high voltage resistance measurement | Physics | 194 | Expired |
| US4113809A | Hand held ultrasonic nebulizer | Emerging Cross-Sectional Technologies | 85 | Expired |
| US4222750A | Oxygen enrichment system for medical use | Performing Operations; Transporting | 75 | Expired |
| US4716874A | Control for spark ignited internal combustion engine | Emerging Cross-Sectional Technologies | 66 | Expired |
| US3940061A | Electrostatic spray gun for powder coating material | Performing Operations; Transporting | 58 | Expired |
| USD270368S | Spray gun | General | 52 | Expired |
| US4722673A | Tank mounting for compressor and motor | Mechanical Engineering; Lighting; Heating | 48 | Expired |
| US3964683A | Electrostatic spray apparatus | Performing Operations; Transporting | 44 | Expired |
| US4433812A | Paint spray attachment | Performing Operations; Transporting | 42 | Expired |
| US4555058A | Rotary atomizer coater | Performing Operations; Transporting | 42 | Expired |
| US4483483A | Gun for supplying compressed fluid | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4030857A | Paint pump for airless spray guns | Mechanical Engineering; Lighting; Heating | 41 | Expired |
| US4712739A | Spray gun nozzle assembly retainer clip and spray gun nozzle assembly | Performing Operations; Transporting | 40 | Expired |
| USD293585S | Air compressor | General | 39 | Expired |
| US4388997A | Vent for paint cups | Performing Operations; Transporting | 37 | Expired |
| US4084976A | Lead-free glaze for alumina bodies | Chemistry; Metallurgy | 35 | Expired |
| USD270367S | Spray gun | General | 35 | Expired |
| USD283832S | Spray apparatus housing for liquids, powder and the like | General | 32 | Expired |
| US4730753A | Paint cup vent | Performing Operations; Transporting | 30 | Expired |
| US4613082A | Electrostatic spraying apparatus for robot mounting | Performing Operations; Transporting | 30 | Expired |
| US4232055A | Automatic color change electrostatic paint spray system | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4402030A | Electrostatic voltage control circuit | Performing Operations; Transporting | 29 | Expired |
| US4032842A | Spark plug tester ignition system | Electricity | 29 | Expired |
| USD305732S | Container | General | 27 | Expired |
| US4653691A | Washing attachment | Performing Operations; Transporting | 27 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.