Douglas Richards
12Patents
5h-index
14Co-inventors
59Inventor score
Filing activity: Jan 11, 2001 → Apr 7, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7616771B2 | Acoustic coupler for skin contact hearing enhancement devices | Electricity | 29 | Expired |
| US8059958B1 | Measurement of polarization dependent loss in an optical transmission system | Electricity | 9 | Active |
| US6778778B1 | Arrangement and method for testing fiber optic telecommunications circuits over dense wavelength division multiplexing (DWDM) | Electricity | 7 | Expired |
| US6781679B1 | Identifying a polarization-mode dispersion event | Electricity | 6 | Expired |
| US8189839B2 | Hearing device improvements using modulation of acoustically coupled signals at middle ear resonance | Electricity | 6 | Active |
| US7394980B1 | Systems and methods for testing a circuit in a communication network | Electricity | 4 | Expired |
| US7788547B1 | Systems and methods for generation of communication channel fault information | Electricity | 4 | Active |
| US7221871B2 | Identification of polarization-mode dispersion on a communication network | Electricity | 3 | Expired |
| US6879827B2 | Testing a communication network with a shared test port | Electricity | 1 | Expired |
| US9241316B1 | System and procedure to reduce the power consumption of a mobile device through automated disabling of RF filters | Emerging Cross-Sectional Technologies | 1 | Active |
| US6907196B2 | Arrangement and method for testing fiber optic telecommunications circuits over dense wavelength division multiplexing (DWDM) | Electricity | 0 | Expired |
| US10666691B2 | Dynamic session classification | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.