David Mark Sugden
15Patents
8h-index
33Co-inventors
72Inventor score
Filing activity: Jun 7, 1995 → Oct 25, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5801935A | Digital power factor correction circuit | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5652494A | Angle controller for a switched reluctance drive utilizing a high frequency clock | Electricity | 30 | Expired |
| US5905406A | Demodulator for a pulse width modulated signal and method | Electricity | 26 | Expired |
| US5650779A | Position encoder | Electricity | 24 | Expired |
| US5892348A | Matrix interpolation | Physics | 24 | Expired |
| US8555238B2 | Programming and development infrastructure for an autonomic element | Physics | 16 | Active |
| US5723858A | Position encoder with fault indicator | Electricity | 15 | Expired |
| US5724477A | Compensation for input voltage variation in an electric motor drive | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5883590A | Analog to digital converter using up/down counter and digital feedback | Electricity | 7 | Expired |
| US6008615A | Commutation controller | Electricity | 6 | Expired |
| US5894211A | Electric machine | Electricity | 6 | Expired |
| US10759727B2 | Processes to create multiple value streams from biomass sources | Emerging Cross-Sectional Technologies | 0 | Active |
| US11803563B2 | Methods and systems for processing and storing streamed event data | Physics | 0 | Active |
| US11840500B2 | Processes to create multiple value streams from biomass sources | Emerging Cross-Sectional Technologies | 0 | Active |
| US12139451B2 | Processes to create multiple value streams from biomass sources | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.