Robert G. Johnson
68Patents
27h-index
57Co-inventors
91Inventor score
Filing activity: Mar 10, 1977 → Apr 19, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4478077A | Flow sensor | Physics | 243 | Expired |
| US4651564A | Semiconductor device | Physics | 219 | Expired |
| US4501144A | Flow sensor | Physics | 195 | Expired |
| US4472239A | Method of making semiconductor device | Physics | 92 | Expired |
| US5300915A | Thermal sensor | Emerging Cross-Sectional Technologies | 88 | Expired |
| US6682532B2 | Coupling system and method for extending spinal instrumentation | Human Necessities | 82 | Expired |
| US4683159A | Semiconductor device structure and processing | Emerging Cross-Sectional Technologies | 80 | Expired |
| US4682503A | Microscopic size, thermal conductivity type, air or gas absolute pressure sensor | Physics | 77 | Expired |
| US4952904A | Adhesion layer for platinum based sensors | Electricity | 70 | Expired |
| US4548078A | Integral flow sensor and channel assembly | Physics | 67 | Expired |
| US4966037A | Cantilever semiconductor device | Electricity | 55 | Expired |
| US4624137A | Semiconductor device | Electricity | 54 | Expired |
| US5909291A | Color matching apparatus and method | Electricity | 54 | Expired |
| US4994237A | Microwave preservation of bioprostheses | Human Necessities | 50 | Expired |
| US4371861A | Ni-fe thin-film temperature sensor | Physics | 50 | Expired |
| US5220189A | Micromechanical thermoelectric sensor element | Emerging Cross-Sectional Technologies | 49 | Expired |
| US6872715B2 | Benzoquinone ansamycins | Chemistry; Metallurgy | 46 | Expired |
| US5534111A | Thermal isolation microstructure | Performing Operations; Transporting | 40 | Expired |
| US5220188A | Integrated micromechanical sensor element | Electricity | 40 | Expired |
| US4914742A | Thin film orthogonal microsensor for air flow and method | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4708636A | Flow sensor furnace control | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US5646156A | Inhibition of eosinophil activation through A3 adenosine receptor antagonism | Human Necessities | 36 | Expired |
| US4581928A | Slotted diaphragm semiconductor device | Physics | 36 | Expired |
| US4739657A | Resistance with linear temperature coefficient | Physics | 36 | Expired |
| US4706061A | Composition sensor with minimal non-linear thermal gradients | Emerging Cross-Sectional Technologies | 29 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.