David J. Naddor
13Patents
9h-index
27Co-inventors
72Inventor score
Filing activity: Apr 1, 1988 → Mar 30, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5003384A | Set-top interface transactions in an impulse pay per view television system | Electricity | 318 | Expired |
| US5155590A | System for data channel level control | Electricity | 272 | Expired |
| US5235619A | Cable television radio frequency subscriber data transmission apparatus and RF return method | Electricity | 272 | Expired |
| US5058160A | In-band controller | Electricity | 265 | Expired |
| US5255086A | Method and apparatus for RF data transfer in a CATV system | Electricity | 190 | Expired |
| US5012510A | Dynamic callback technique | Electricity | 129 | Expired |
| US5157716A | Dynamic callback technique | Electricity | 124 | Expired |
| US4922456A | Method of reducing wearout in a non-volatile memory with double buffer | Physics | 33 | Expired |
| US4926444A | Data transmission method and apparatus by period shift keying (TSK) | Electricity | 29 | Expired |
| US5412585A | Ultrasonic control disk drive system | Emerging Cross-Sectional Technologies | 2 | Expired |
| US10734928B1 | Apparatus and method to harvest quadrature encoder signals from generic stepper motor input signals | Electricity | 0 | Active |
| US8360333B2 | HD barcode | Physics | 0 | Active |
| US10674055B2 | Apparatus for detecting, reading, and verifying 1-D, 2-D, and DPM symbologies | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.