Edwin C. Johnson, Jr.
15Patents
6h-index
25Co-inventors
66Inventor score
Filing activity: Jul 25, 1977 → Aug 13, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8243946B2 | Personal acoustic device position determination | Electricity | 41 | Active |
| US8699719B2 | Personal acoustic device position determination | Electricity | 33 | Active |
| US8238570B2 | Personal acoustic device position determination | Electricity | 25 | Active |
| US6656957B1 | Pyridine derivatives | Chemistry; Metallurgy | 21 | Expired |
| US5807689A | Methods for identifying compounds that modulate metabotropic glutamate receptor activity | Physics | 10 | Expired |
| US4128065A | General purpose incinerator/combustor | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| USD772782S1 | Cargo hauling apparatus | General | 6 | Active |
| US6001581A | Cation-based bioassay using human metabotropic glutamate receptors | Physics | 5 | Expired |
| US6485919B1 | Human metabotropic glutamate receptors, nucleic acids encoding same and uses thereof | Physics | 4 | Expired |
| US6413764B1 | Human metabotropic glutamate receptors, nucleic acids encoding same and uses thereof | Physics | 3 | Expired |
| US5812676A | Near-field reproduction of binaurally encoded signals | Electricity | 2 | Expired |
| US10897669B2 | Two layer microphone protection | Electricity | 0 | Active |
| US9712935B2 | Microphone compatibility | Electricity | 0 | Active |
| US10051371B2 | Headphone on-head detection using differential signal measurement | Electricity | 0 | Active |
| US10582298B2 | Directional acoustic device and method of manufacturing a directional acoustic device | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.