Robert A. Hayes
65Patents
16h-index
73Co-inventors
87Inventor score
Filing activity: May 5, 1975 → Oct 13, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6195018A | Metering system | Electricity | 282 | Expired |
| US6492910B1 | Metering system | Electricity | 97 | Expired |
| US7508566B2 | Switchable optical element | Physics | 85 | Expired |
| US7463398B2 | Display device | Physics | 56 | Expired |
| US7274416B2 | Display device | Physics | 53 | Expired |
| US4075186A | Graft copolymers of polybutadiene and substituted polyacrylate | Chemistry; Metallurgy | 42 | Expired |
| US7359108B2 | Display device | Physics | 38 | Expired |
| US7251392B2 | Reduction of driving voltage in a switchable element | Physics | 38 | Expired |
| US4500466A | Method for preparing a zinc dimethacrylate powder having a specific surface area range | Chemistry; Metallurgy | 28 | Expired |
| US7529012B2 | Display device | Physics | 28 | Expired |
| US4713409A | Vulcanizable polymeric compositions containing a zinc dimethacrylate adjuvant and method for preparing the adjuvant | Chemistry; Metallurgy | 27 | Expired |
| US4169422A | Automatic chain-stitch sewing machine | Textiles; Paper | 22 | Expired |
| US6658466B1 | Method and apparatus for integrating remote human interactive assistance function into software systems | Physics | 22 | Expired |
| US7548363B2 | Bi-stable electrowetting optical element and driving method therefor | Physics | 18 | Expired |
| US4316967A | Amine terminated polymers and the formation of block copolymers | Chemistry; Metallurgy | 17 | Expired |
| US4107256A | Suspension polymerization of polyurethanes and spin-molding the powder product thereof | Performing Operations; Transporting | 16 | Expired |
| US4157430A | Amine terminated polymers and the formation of block copolymers | Chemistry; Metallurgy | 16 | Expired |
| US4070344A | Amine terminated polymers and the formation of block copolymers | Chemistry; Metallurgy | 16 | Expired |
| US7800816B2 | Display device based on electrowetting effect | Physics | 15 | Expired |
| US4529770A | Vulcanizable polymeric compositions containing zinc dimethacrylate and fillers | Chemistry; Metallurgy | 14 | Expired |
| US7242528B2 | Electrowetting module | Physics | 12 | Expired |
| US4151222A | Amine terminated polymers and the formation of block copolymers | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4298707A | Amine terminated polymers and the formation of block copolymers | Chemistry; Metallurgy | 10 | Expired |
| US4157429A | Amine terminated polymers and the formation of block copolymers | Chemistry; Metallurgy | 10 | Expired |
| US8031168B2 | Display device having an electrode partially covering a picture element | Physics | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.