Mead C. Killion
102Patents
32h-index
64Co-inventors
93Inventor score
Filing activity: Dec 30, 1976 → Oct 5, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5524056A | Hearing aid having plural microphones and a microphone switching system | Electricity | 211 | Expired |
| US4689819A | Class D hearing aid amplifier | Electricity | 162 | Expired |
| US4592087A | Class D hearing aid amplifier | Electricity | 139 | Expired |
| US5113967A | Audibility earplug | Human Necessities | 109 | Expired |
| US4677675A | Response-modifying acoustic couplers for hearing aids | Electricity | 98 | Expired |
| US5878147A | Directional microphone assembly | Electricity | 84 | Expired |
| US6327370A | Hearing aid having plural microphones and a microphone switching system | Electricity | 81 | Expired |
| US6101258A | Hearing aid having plural microphones and a microphone switching system | Electricity | 76 | Expired |
| US6151399A | Directional microphone system providing for ease of assembly and disassembly | Electricity | 74 | Expired |
| US5577511A | Occlusion meter and associated method for measuring the occlusion of an occluding object in the ear canal of a subject | Electricity | 71 | Expired |
| US6009311A | Method and apparatus for reducing audio interference from cellular telephone transmissions | Emerging Cross-Sectional Technologies | 69 | Expired |
| US4677679A | Insert earphones for audiometry | Electricity | 68 | Expired |
| US8715152B2 | Optical electro-mechanical hearing devices with separate power and signal components | Electricity | 66 | Active |
| US7881486B1 | Directional microphone assembly | Electricity | 58 | Expired |
| US4450930A | Microphone with stepped response | Electricity | 55 | Expired |
| US5623550A | Battery power supply circuit which supplies correct power polarity irrespective of battery orientation | Electricity | 53 | Expired |
| USD535644S1 | High-fidelity noise-excluding earphones with ergonomically designed construction | General | 52 | Expired |
| US8460816B2 | Rechargeable battery assemblies and methods of constructing rechargeable battery assemblies | Emerging Cross-Sectional Technologies | 47 | Active |
| US7206426B1 | Multi-coil coupling system for hearing aid applications | Electricity | 45 | Expired |
| US4852683A | Earplug with improved audibility | Human Necessities | 44 | Expired |
| US5966639A | System and method for enhancing speech intelligibility utilizing wireless communication | Electricity | 43 | Expired |
| US9591409B2 | Optical electro-mechanical hearing devices with separate power and signal components | Electricity | 42 | Active |
| US6075869A | Directional microphone assembly | Electricity | 38 | Expired |
| US8649540B2 | Electronic earplug | Electricity | 36 | Active |
| US4063050A | Acoustic transducer with improved electret assembly | Electricity | 36 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.