David S. Wisherd
31Patents
14h-index
19Co-inventors
78Inventor score
Filing activity: Nov 15, 1976 → May 6, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5920287A | Radio location system for precisely tracking objects by RF transceiver tags which randomly and repetitively emit wideband identification signals | Physics | 235 | Expired |
| US6593885B2 | Low cost DTOA location processing system based on multiple readers-to-single processor architecture | Physics | 123 | Expired |
| US7755541B2 | System and method for tracking vehicles and containers | Physics | 89 | Active |
| US6987744B2 | Wireless local area network with geo-location capability | Physics | 37 | Expired |
| US8943705B2 | Dielectric dryer drum | Mechanical Engineering; Lighting; Heating | 31 | Active |
| US8826561B2 | High efficiency heat generator | Emerging Cross-Sectional Technologies | 31 | Active |
| US5272450A | DC feed network for wideband RF power amplifier | Electricity | 29 | Expired |
| US5304959A | Planar microstrip balun | Electricity | 26 | Expired |
| US9447537B2 | Fixed radial anode drum dryer | Electricity | 25 | Active |
| US9173253B2 | Ionic adder dryer technology | Electricity | 22 | Active |
| US9200402B2 | Dielectric dryer drum | Textiles; Paper | 22 | Active |
| US8768343B2 | Wireless local area network receiver and associated method | Electricity | 18 | Active |
| US8786495B2 | Frequency channel diversity for real-time locating systems, methods, and computer program products | Physics | 17 | Active |
| US9880283B2 | System, apparatus and method for locating and/or tracking assets | Physics | 17 | Active |
| US7212563B2 | Real-time locating system and method using timing signal | Electricity | 14 | Expired |
| US5338974A | RF power transistor package | Electricity | 10 | Expired |
| US5027082A | Solid state RF power amplifier having improved efficiency and reduced distortion | Electricity | 9 | Expired |
| US5315265A | Low intermodulation distortion FET amplifier using parasitic resonant matching | Electricity | 7 | Expired |
| US9983303B2 | Passive radio frequency identification ranging | Physics | 4 | Active |
| US10487443B1 | Hybrid RF/conventional clothes dryer | Emerging Cross-Sectional Technologies | 4 | Active |
| US9684054B2 | Frequency channel diversity for real-time locating systems, methods, and computer program products | Physics | 3 | Active |
| US9699680B2 | Wireless local area network receiver and associated method | Electricity | 3 | Active |
| US8892065B2 | Method, apparatus, and computer program product for wireless signal storage with signal recognition detection triggering | Physics | 3 | Active |
| US11066778B2 | Hybrid RF/conventional clothes dryer | Emerging Cross-Sectional Technologies | 2 | Active |
| USD249689S | CB Radio transceiver | General | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.