Ken Johnson
17Patents
6h-index
15Co-inventors
63Inventor score
Filing activity: Jul 21, 1978 → Aug 6, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD424500S | Vehicle wheel front face | General | 33 | Expired |
| US5161240A | Electric wall switch with ground fault protection | Electricity | 33 | Expired |
| USD427130S | Vehicle wheel front face | General | 15 | Expired |
| US4201973A | Airport landing indicator apparatus | Physics | 11 | Expired |
| USD422259S | Spoke segment for an automotive vehicle wheel | General | 10 | Expired |
| USD927739S1 | Marker light | General | 6 | Active |
| USD252383S | Combined runway locator and wind direction indicator | General | 5 | Expired |
| USD939314S1 | Door release | General | 4 | Active |
| USD425008S | Spoke segment for an automotive vehicle wheel | General | 4 | Expired |
| USD942911S1 | Door release trim | General | 4 | Active |
| US8073440B2 | Automatic gain control in a personal navigation device | Electricity | 3 | Active |
| US6042467A | Tongue squeezer | Human Necessities | 2 | Expired |
| US6468575B2 | Method for molding and shaping tongue | Human Necessities | 2 | Expired |
| US8452247B2 | Automatic gain control | Electricity | 1 | Active |
| US8346227B2 | Automatic gain control in a navigation device | Electricity | 1 | Active |
| USD939318S1 | Door release handle | General | 0 | Active |
| USD1007720S1 | Marker light | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.