Craig Johnston
5Patents
3h-index
12Co-inventors
54Inventor score
Filing activity: Sep 14, 1979 → Apr 3, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4276513A | Auto-zero amplifier circuit with wide dynamic range | Electricity | 15 | Expired |
| US9445053B2 | Layered mixing for sound field conferencing system | Electricity | 5 | Active |
| US9552827B2 | Echo control through hidden audio signals | Physics | 4 | Active |
| US9420109B2 | Clustering of audio streams in a 2D / 3D conference scene | Electricity | 1 | Active |
| US11803351B2 | Scalable voice scene media server | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.