Robert K. Johnson
30Patents
18h-index
28Co-inventors
81Inventor score
Filing activity: Jul 24, 1974 → Nov 5, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5331752A | Skate with detachable shoe | Human Necessities | 99 | Expired |
| US6173203A | Circuit mounting system for automated external defibrillator circuits | Electricity | 69 | Expired |
| US6962275B2 | Fluid coupling with disposable connector body | Performing Operations; Transporting | 67 | Expired |
| US6978800B2 | Closure device with self-aligning poppet | Emerging Cross-Sectional Technologies | 67 | Expired |
| US7394375B2 | Coupler with radio frequency identification tag | Mechanical Engineering; Lighting; Heating | 64 | Expired |
| US6848602B2 | Coupling and closure apparatus for dispensing valve assembly | Mechanical Engineering; Lighting; Heating | 63 | Expired |
| US7708025B2 | Poppet valve member | Emerging Cross-Sectional Technologies | 62 | Expired |
| US6626419B2 | Fluid coupling valve assembly | Mechanical Engineering; Lighting; Heating | 54 | Expired |
| USD649938S1 | Fluid and electrical coupling | General | 47 | Expired |
| US5868794A | AED and battery pack with anticipatory battery disengagement detection | Emerging Cross-Sectional Technologies | 47 | Expired |
| USD405754S | Battery housing | General | 40 | Expired |
| USD649939S1 | Fluid and electrical coupling | General | 37 | Expired |
| USD402758S | Automated external defibrillator | General | 28 | Expired |
| USD340125S | Shoe | General | 26 | Expired |
| USD344119S | Roller skate frame | General | 24 | Expired |
| USD394903S | External defibrillator | General | 23 | Expired |
| US5765841A | In-line skate with full access frame | Human Necessities | 20 | Expired |
| US5211126A | Ship or boat construction having three hulls | Performing Operations; Transporting | 19 | Expired |
| US6090203A | Bowling lane oil application device and method | Performing Operations; Transporting | 17 | Expired |
| US5996524A | Boat anchor davit | Performing Operations; Transporting | 14 | Expired |
| US6182596A | System for minimizing the effects of shock and vibration in a high speed vessel | Performing Operations; Transporting | 13 | Expired |
| US3957602A | Recovery of copper from chalcopyrite utilizing copper sulfate leach | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6064909A | Water resistant speaker port for automated external defibrillators | Human Necessities | 11 | Expired |
| US6391369B1 | Selectively hydrogenated high oleic oil compositions and process | Human Necessities | 7 | Expired |
| US10151409B2 | Coupling assembly with retaining clip member | Emerging Cross-Sectional Technologies | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.