Randall E. Johnson
32Patents
13h-index
59Co-inventors
84Inventor score
Filing activity: Oct 22, 1984 → Sep 15, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6223984A | Distinct smart card reader having wiegand, magnetic strip and bar code types emulation output | Physics | 238 | Expired |
| US5025306A | Assembly of semiconductor chips | Electricity | 131 | Expired |
| US5679945A | Intelligent card reader having emulation features | Physics | 118 | Expired |
| US8449128B2 | System and method for a lens and phosphor layer | Electricity | 75 | Active |
| US5327327A | Three dimensional assembly of integrated circuit chips | Electricity | 71 | Expired |
| US8585253B2 | System and method for color mixing lens array | Emerging Cross-Sectional Technologies | 54 | Active |
| US5247746A | Tray sealing and gas flush apparatus | Performing Operations; Transporting | 36 | Expired |
| US4891087A | Isolation substrate ring for plasma reactor | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4659413A | Automated single slice cassette load lock plasma reactor | Electricity | 21 | Expired |
| US4654106A | Automated plasma reactor | Electricity | 17 | Expired |
| US4657621A | Low particulate vacuum chamber input/output valve | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5371998A | Modified atmosphere packaging device | Performing Operations; Transporting | 14 | Expired |
| US4657617A | Anodized aluminum substrate for plasma etch reactor | Emerging Cross-Sectional Technologies | 13 | Expired |
| US9150152B2 | Lighted vehicle cargo area arrangement | Performing Operations; Transporting | 9 | Active |
| US4657618A | Powered load lock electrode/substrate assembly including robot arm, optimized for plasma process uniformity and rate | Electricity | 9 | Expired |
| US8362398B2 | Vehicle radiant heating control system | Performing Operations; Transporting | 7 | Active |
| US9016764B2 | Vehicle cargo bed accessory | Performing Operations; Transporting | 6 | Active |
| US8302847B2 | RFID parking tag and method of monitoring vehicle parking | Physics | 4 | Active |
| US9086211B2 | System and method for color mixing lens array | Emerging Cross-Sectional Technologies | 4 | Active |
| US5273327A | Hatchback door for an automobile | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8899792B2 | High NA optical system and device | Electricity | 3 | Active |
| US5700111A | Apparatus for applying synthetic roving materials and method for controlling the build up of static electricity | Emerging Cross-Sectional Technologies | 2 | Expired |
| US9819211B2 | Wireless charging assembly for a vehicle | Electricity | 2 | Active |
| US9227565B2 | Vehicle illumination assembly | Performing Operations; Transporting | 1 | Active |
| US9802553B2 | Vehicle body structure | Performing Operations; Transporting | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.