Richard B. Frederick
6Patents
6h-index
15Co-inventors
56Inventor score
Filing activity: Apr 1, 1988 → Jun 27, 2006
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 |
| US5859587A | Data communication and electronic article surveillance tag | Physics | 125 | Expired |
| US5990794A | Apparatus for data communication and deactivation of electronic article surveillance tags | Physics | 77 | Expired |
| US5625341A | Multi-bit EAS marker powered by interrogation signal in the eight MHz band | Physics | 73 | Expired |
| US4926444A | Data transmission method and apparatus by period shift keying (TSK) | Electricity | 29 | Expired |
| US7535338B2 | Wireless synchronized operation of pulsed EAS systems | Physics | 6 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.