David Johnston
8Patents
4h-index
11Co-inventors
46Inventor score
Filing activity: Sep 8, 2000 → May 2, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6724876B2 | Method and apparatus for effecting telecommunications service features using call control information extracted from a bearer channel in a telecommunications network | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7587033B2 | Methods and systems for rendering voice mail messages amenable to electronic processing by mailbox owners | Electricity | 12 | Active |
| US8108274B2 | Interactive electronic bill payment system | Physics | 10 | Expired |
| US6766009B2 | Method and system for correlating telephone calls with information delivery | Electricity | 8 | Expired |
| US7650304B1 | Solicitation to web marketing loop process | Physics | 3 | Expired |
| US8645168B2 | Interactive electronic bill payment system | Physics | 3 | Active |
| US6839422B2 | Method and apparatus for providing local call treatment discrimination for selected calls on a switched telephone network | Electricity | 3 | Expired |
| US7864930B2 | Systems and methods for registration and retrieval of voice mail contact information | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.