Daniel Dufour
28Patents
11h-index
30Co-inventors
75Inventor score
Filing activity: Apr 3, 1980 → Jul 30, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5613205A | System and method of locating a mobile terminal within the service area of a cellular telecommunication system | Physics | 197 | Expired |
| US5974320A | Providing a neighborhood zone within a mobile telecommunications network | Electricity | 76 | Expired |
| US6212386A | Automated tool method for frequency plan revision within a cellular telephone system | Electricity | 53 | Expired |
| US6212377A | System and method of providing group wireless extension phone service in a radio telecommunications network | Electricity | 51 | Expired |
| US5724656A | Method and apparatus for providing an improved caller interface in a fixed cellular communications system | Electricity | 47 | Expired |
| US6049717A | Operator assisted tool and method for frequency plan revision within a cellular telephone system | Electricity | 41 | Expired |
| US6073010A | System and method for restricting mobility of subscribers assigned to fixed subscription areas in a cellular telecommunications network | Electricity | 31 | Expired |
| US5878349A | Call set-up on 800 MHz analog voice channel from 1900 MHZ digital control channel | Electricity | 23 | Expired |
| US4329272A | Flame-retardant polymers | Chemistry; Metallurgy | 15 | Expired |
| US5850604A | System and method for restricting call setup to a fixed subscription area in a cellular telecommunications network | Electricity | 15 | Expired |
| US4311806A | Polyblends of PVC and styrene-maleic anhydride-rubber copolymers | Chemistry; Metallurgy | 14 | Expired |
| US6311067A | Gradual frequency plan revision methodology | Electricity | 9 | Expired |
| US6052593A | Method for frequency mode validation for, frequency assignment for, and evaluating the network effect of a frequency plan revision within a dual mode cellular telephone system | Electricity | 9 | Expired |
| US5061754A | Low gloss polycarbonate/ABS blends | Chemistry; Metallurgy | 8 | Expired |
| US4500679A | Polyblends of thermoplastic copolyetheresters styrene-maleic anhydride polymers, and acrylonitrile-butadiene-styrene polymers | Chemistry; Metallurgy | 8 | Expired |
| US4508870A | Polyblends of thermoplastic copolyetheresters and acrylonitrile-butadiene-styrene polymers | Chemistry; Metallurgy | 7 | Expired |
| US4361666A | Styrenic polymer additive | Chemistry; Metallurgy | 6 | Expired |
| US4387191A | Heat stabilized polymers | Chemistry; Metallurgy | 6 | Expired |
| US4460741A | Polyblends of thermoplastic copolyetheresters, styrene-maleic anhydride polymers, acrylonitrile-butadiene-styrene polymers, and nitrile rubbers | Chemistry; Metallurgy | 6 | Expired |
| US4298716A | Styrenic tetrapolymer | Chemistry; Metallurgy | 4 | Expired |
| US11719389B2 | Mobile backfeeding installation | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US5053456A | Transparent polyblends | Chemistry; Metallurgy | 2 | Expired |
| US4439571A | Thermally stabilized polymers | Chemistry; Metallurgy | 2 | Expired |
| US11396981B2 | Scalable backfeeding installation and method | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US12123552B2 | Energy-optimized backfeeding installation | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.