David A. Brown
50Patents
11h-index
75Co-inventors
81Inventor score
Filing activity: Oct 19, 1976 → Apr 5, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4396959A | Data transducer position control system for rotating disk data storage equipment | Physics | 67 | Expired |
| US7752824B2 | Shrinkage-compensating continuity system | Emerging Cross-Sectional Technologies | 37 | Active |
| US4490635A | Pure torque, limited displacement transducer | Physics | 28 | Expired |
| US4660106A | Data transducer position control system for rotating disk data storage equipment | Physics | 24 | Expired |
| US4814909A | Data transducer position control system for rotating disk data storage equipment | Physics | 22 | Expired |
| US4920434A | Fixed disk drive | Physics | 20 | Expired |
| US5775939A | Interface assembly for peripheral accessories | Electricity | 18 | Expired |
| US9800711B2 | System, method and device-readable medium for communication event interaction within a unified event view | Electricity | 14 | Active |
| US4982296A | Head and disk assembly for fixed disk drive | Physics | 11 | Expired |
| US9021108B2 | Method, system and apparatus for enabling access of a first mobile electronic device to at least one network accessible by a second mobile electronic device | Electricity | 11 | Active |
| US5119254A | Data transducer position control system for rotating disk data storage equipment | Physics | 11 | Expired |
| USRE32075E | Data transducer position control system for rotating disk data storage equipment | General | 9 | Expired |
| US11157148B2 | System, method and device-readable medium for message composition within a unified event view | Electricity | 8 | Active |
| US4872074A | Data transducer position control system for rotating disk data storage equipment | Physics | 8 | Expired |
| US6462554B2 | System and method for deterring operation of a system outside a specified frequency range | Physics | 7 | Expired |
| US6348834B1 | Linearization of FET channel impedance for small signal applications | Electricity | 6 | Expired |
| US7909093B2 | In situ combustion as adjacent formation heat source | Fixed Constructions | 6 | Active |
| US8474531B2 | Steam-gas-solvent (SGS) process for recovery of heavy crude oil and bitumen | Chemistry; Metallurgy | 6 | Active |
| US11235778B2 | Systems and methods for maintaining vehicle state information | Performing Operations; Transporting | 6 | Active |
| US10337159B2 | Vis-NIR equipped soil penetrometer | Physics | 5 | Active |
| US9739123B2 | Dual injection points in SAGD | Fixed Constructions | 5 | Active |
| US11648953B2 | Systems and methods for maintaining vehicle state information | Emerging Cross-Sectional Technologies | 5 | Active |
| US5726602A | Stabilized rail-to-rail speaker driver circuit | Electricity | 4 | Expired |
| US10528234B2 | System, method and device-readable medium for last-viewed communication event interaction within a unified event view | Electricity | 4 | Active |
| US5894522A | Distortion reduction system | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.