John Sheffield
9Patents
5h-index
7Co-inventors
56Inventor score
Filing activity: Dec 23, 1997 → Aug 27, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6603966B1 | Method and system for optimizing performance of a mobile communication system | Electricity | 85 | Expired |
| US7099669B2 | Method and system for optimizing performance of a mobile communications system | Electricity | 74 | Expired |
| US6697841B1 | Dictation system employing computer-to-computer transmission of voice files controlled by hand microphone | Electricity | 21 | Expired |
| US6493672B2 | Automatic distribution of voice files | Electricity | 10 | Expired |
| US7676291B2 | Hand microphone interfaced to game controller port of personal computer | Electricity | 9 | Active |
| US6529450B1 | Hand microphone interfaced to game controller port of personal computer | Electricity | 3 | Expired |
| US7366767B2 | Dictation system employing computer-to-computer transmission of voice files controlled by hand microphone | Electricity | 3 | Expired |
| US7035701B2 | Hand microphone interfaced to game controller port of personal computer | Electricity | 0 | Expired |
| USD895137S1 | Centrifuge | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.