Robert N. Johnson
24Patents
14h-index
19Co-inventors
78Inventor score
Filing activity: Feb 28, 1972 → Nov 22, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6553336B1 | Smart remote monitoring system and method | Emerging Cross-Sectional Technologies | 987 | Expired |
| US6243654A | Transducer assembly with smart connector | Electricity | 601 | Expired |
| US4108837A | Polyarylene polyethers | Chemistry; Metallurgy | 164 | Expired |
| US4175175A | Polyarylene polyethers | Chemistry; Metallurgy | 152 | Expired |
| US4568348A | Knee prosthesis | Human Necessities | 146 | Expired |
| US4950297A | Knee prosthesis | Human Necessities | 111 | Expired |
| US4275172A | Frothable polyurethane composition and a cellular foam produced therefrom suitable for use in joints between wallboards | Emerging Cross-Sectional Technologies | 83 | Expired |
| US4791919A | Surgical instruments | Human Necessities | 52 | Expired |
| USD509951S1 | Orthotic with insert | General | 44 | Expired |
| US5230117A | Golf shoe and golf club cleaning device | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4316875A | Apparatus for producing a curable polyurethane froth | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4284862A | Acceleration switch | Electricity | 19 | Expired |
| US4954553A | Modified waterborne phenoxy resins | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6990756B1 | Footwear orthotic with insert | Human Necessities | 14 | Expired |
| US5314480A | Patellar components | Human Necessities | 14 | Expired |
| US4302006A | Recreational device | Human Necessities | 13 | Expired |
| US4647506A | Flexible, self-cross-linking binders | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6034160A | Method for the preparation of water-borne coating compositions using thermoplastic polyhydroxyether resins having narrow polydispersity | Chemistry; Metallurgy | 10 | Expired |
| US4594944A | Setting ring system for electronic time fuzing | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4985314A | Novel vinyl chloride resins and compositions incorporating such resins | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5574079A | Method for the preparation of water-borne coating compositions using thermoplastic polyhydroxyether resins having narrow polydispersity | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4054538A | .pi. Allyl chromium complex catalyst and process for preparing same | Chemistry; Metallurgy | 7 | Expired |
| US5171784A | Phosphorylated reaction products and compositions incorporating such products | Physics | 4 | Expired |
| US4540758A | Polymerization of ethylene with supported .pi. allyl chromium complexes | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.