Stephen B. Knuth
14Patents
11h-index
8Co-inventors
57Inventor score
Filing activity: Apr 12, 1991 → Jul 6, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5400393A | Voice mail digital telephone answering device | Electricity | 132 | Expired |
| US5418839A | Environmental adaptive mechanism for channel utilization in cordless telephones | Emerging Cross-Sectional Technologies | 103 | Expired |
| US5646979A | Cordless telephone with voice announced calling party identification | Electricity | 72 | Expired |
| US5406618A | Voice activated, handsfree telephone answering device | Electricity | 69 | Expired |
| US5577104A | Method for system and message activation based on distinctive ringing | Electricity | 59 | Expired |
| US5197093A | Enviromental adaptive mechanism for channel utilization in cordless telephones | Electricity | 56 | Expired |
| US5432844A | Shared line answering system with enhanced extension device features | Electricity | 35 | Expired |
| US5781613A | Telephone answering device and method for screening incoming telephone calls with blocked calling party identification information | Electricity | 27 | Expired |
| US5826187A | Integrated cordless telephone with telephone answering device and method of replaying messages through a handset thereof | Electricity | 24 | Expired |
| US5768349A | Voice mail telephone answering device | Electricity | 22 | Expired |
| US6160872A | Apparatus and method for preventing disconnection of consumer premises equipment | Electricity | 18 | Expired |
| US5588046A | Digital telephone answering device and method of testing message storage memory therein | Electricity | 6 | Expired |
| US5392332A | Shared line telephone answering system with a telephone line-powered disconnect module | Electricity | 5 | Expired |
| US5606598A | Telephone answering device with direct telephone line interface | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.