Richard Sparber
14Patents
7h-index
13Co-inventors
63Inventor score
Filing activity: Jul 28, 1976 → Jun 21, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6580787B1 | Integration of voice mail, email, fax and personal calendar systems to automatically update messages | Electricity | 98 | Expired |
| US6584316B1 | Handoff of phone calls from wireless to wireline network | Electricity | 54 | Expired |
| US6823189B2 | System and method for identifying mobile communication apparatuses proximal with an identification locus | Electricity | 50 | Expired |
| US4379210A | Ringing detector for use by the deaf | Electricity | 16 | Expired |
| US4224483A | Electronic loaded/nonloaded telephone loop identification circuit | Electricity | 10 | Expired |
| US4283675A | Impedance/admittance measuring circuit | Physics | 9 | Expired |
| US6701156B2 | System and method for managing response to a need at a site | Electricity | 9 | Expired |
| US6405042B1 | Provision of cellular/wire-line service | Electricity | 7 | Expired |
| US4197429A | Gain-adjusting conference circuit | Electricity | 7 | Expired |
| US4331913A | Precision negative impedance circuit with calibration | Electricity | 6 | Expired |
| US6980799B2 | Method for preserving calls when service is interrupted to a mobile unit in a wireless communication system | Electricity | 6 | Expired |
| US4047104A | Ohmmeter for circuits carrying unknown currents | Physics | 2 | Expired |
| US6026076A | Detecting digital multiplexer faults | Electricity | 1 | Expired |
| US6386803B1 | Drill for inexperienced users | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.