Jonathan K. Stewart
14Patents
10h-index
19Co-inventors
69Inventor score
Filing activity: Nov 3, 1989 → Oct 8, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5113967A | Audibility earplug | Human Necessities | 109 | Expired |
| US5878147A | Directional microphone assembly | Electricity | 84 | Expired |
| US6075869A | Directional microphone assembly | Electricity | 38 | Expired |
| US5131046A | High fidelity hearing aid amplifier | Electricity | 36 | Expired |
| US6134334A | Directional microphone assembly | Electricity | 34 | Expired |
| US6285771A | Directional microphone assembly | Electricity | 23 | Expired |
| US5661420A | Mounting configuration for monolithic integrated circuit | Electricity | 20 | Expired |
| US7551940B2 | Two-way voice communication device having external acoustic noise reduction | Electricity | 17 | Expired |
| US5099856A | Electrode isolation amplifier | Human Necessities | 14 | Expired |
| US6831987B2 | Directional microphone assembly | Electricity | 12 | Expired |
| US6567526B1 | Directional microphone assembly | Electricity | 10 | Expired |
| US8184839B2 | One-size-fits-most hearing aid | Emerging Cross-Sectional Technologies | 7 | Active |
| US9566023B2 | Audiometry earphone insert | Electricity | 0 | Active |
| US8625827B2 | One-size-fits-most hearing aid | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.