James H. Johnson
26Patents
15h-index
17Co-inventors
78Inventor score
Filing activity: Mar 31, 1966 → Jul 16, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4907176A | Flag generation system | Physics | 93 | Expired |
| US6937692B2 | Vehicle mounted inspection systems and methods | Physics | 74 | Expired |
| US5343043A | Remote sensor device for monitoring motor vehicle exhaust systems with high speed sampling | Physics | 55 | Expired |
| US7397891B2 | Vehicle mounted inspection systems and methods | Physics | 55 | Expired |
| US5371367A | Remote sensor device for monitoring motor vehicle exhaust systems | Physics | 48 | Expired |
| US5812249A | Speed and acceleration monitoring device using visible laser beams | Physics | 46 | Expired |
| US4019423A | Automatic or semi-automatic firearm | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US5586850A | Truck bed cargo divider | Performing Operations; Transporting | 33 | Expired |
| US4964103A | Three dimensional before stack depth migration of two dimensional or three dimensional seismic data | Physics | 33 | Expired |
| US5644133A | Remote vehicle emission analyzer with light conveyance to detectors through fiber optic light tubes | Physics | 33 | Expired |
| US4917442A | Demountable trailer wheel | Emerging Cross-Sectional Technologies | 30 | Expired |
| US7164132B2 | Multilane remote sensing device | Physics | 30 | Expired |
| US4428137A | Cartridge magazine | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4448109A | Automatic or semi-automatic firearm | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US6983639B1 | Remote emissions sensing system with improved NOx detection | Emerging Cross-Sectional Technologies | 15 | Expired |
| US8223918B2 | Radiation scanning and disabling of hazardous targets in containers | Physics | 12 | Active |
| US6841778B1 | Method and apparatus for measuring particulates in vehicle emissions | Physics | 11 | Expired |
| US7141793B2 | Remove vehicle emission sensing device with single detector | Physics | 9 | Expired |
| US4180233A | Building construction system | Performing Operations; Transporting | 7 | Expired |
| US4887821A | Game ball setting apparatus | Human Necessities | 4 | Expired |
| US4117761A | Fire control mechanism | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4903220A | Dual ported speed up memory in ROM location for engine analyzer | Physics | 2 | Expired |
| US7832681B2 | Dispenser for coiled materials | Performing Operations; Transporting | 1 | Active |
| US6152241A | Dual blade hoe | Human Necessities | 1 | Expired |
| US9103925B2 | Radiation scanning and disabling of hazardous targets in containers | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.