Kelch Corporation
16Patents
0Active
16Granted
31Portfolio score
Filing activity: Mar 9, 1981 → Feb 14, 2005
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4922954A | Bi-directional pressure relief vent for a fuel tank | Emerging Cross-Sectional Technologies | 27 | Expired |
| USD366021S | Steering wheel | General | 26 | Expired |
| US4519219A | Receptacle for beverage container | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US5224379A | Float activated gauge | Physics | 15 | Expired |
| US4724706A | Fuel tank gauge | Physics | 14 | Expired |
| US5435181A | Electronic float gauge | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5242072A | Vented fuel tank cap | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7493894B2 | Tank assembly and components | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5061165A | Molding tool | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4905863A | Vent for portable gas tank or the like | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5306564A | Mold closure system | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4970896A | Float activated gauge | Physics | 5 | Expired |
| US4978027A | Fuel tank with vent system | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5529481A | Rotational mold having a divider ring between facing edges of two separable mold shells | Performing Operations; Transporting | 4 | Expired |
| USD270719S | Traffic control barricade | General | 4 | Expired |
| US4838083A | Float activated gauge | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.