Larry A. Marcus
14Patents
6h-index
20Co-inventors
66Inventor score
Filing activity: Dec 21, 1992 → Dec 10, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5740257A | Active noise control earpiece being compatible with magnetic coupled hearing aids | Electricity | 71 | Expired |
| US6389145B2 | Methods and apparatus for controlling the output of moving armature transducers | Electricity | 18 | Expired |
| USD355917S | Telephone handset | General | 9 | Expired |
| US5586183A | Extendable telephone handset with flexible electrical interconnection and matched impedance acoustical interface | Electricity | 7 | Expired |
| US5450372A | Magnetoresistive microphone and acoustic sensing devices | Physics | 7 | Expired |
| US7751575B1 | Microphone system for communication devices | Electricity | 6 | Active |
| US5651074A | Noise canceling gradient microphone assembly | Electricity | 5 | Expired |
| US7182324B2 | Microphone isolation system | Electricity | 4 | Expired |
| US5291541A | Coupling apparatus for telephone handsets | Electricity | 4 | Expired |
| US8300871B2 | Earphone for wideband communication | Electricity | 4 | Active |
| US5696359A | Portable loudspeaker/directional microphone peripheral | Electricity | 3 | Expired |
| US10154330B2 | Gradient micro-electro-mechanical systems (MEMS) microphone | Electricity | 3 | Active |
| US7646865B2 | Telephone handset coupling system | Electricity | 2 | Active |
| US10771875B2 | Gradient micro-electro-mechanical systems (MEMS) microphone | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.