Herman Cheung
11Patents
1h-index
7Co-inventors
47Inventor score
Filing activity: Sep 14, 1984 → Oct 9, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4757017A | In vitro cell culture system | Chemistry; Metallurgy | 52 | Expired |
| US9998135B2 | Method and apparatus for analog to digital error conversion with multiple symmetric transfer functions | Electricity | 1 | Active |
| US10200056B2 | Method and apparatus for analog to digital error conversion with multiple symmetric transfer functions | Electricity | 0 | Active |
| US10141937B2 | Pulse-width modulation (PWM) control loop for power application | Emerging Cross-Sectional Technologies | 0 | Active |
| US8153436B2 | Assays for disease-associated crystals in biological samples | Physics | 0 | Active |
| US10312911B2 | Programmable analog and digital input/output for power application | Emerging Cross-Sectional Technologies | 0 | Active |
| US10003338B2 | Programmable analog and digital input/output for power application | Emerging Cross-Sectional Technologies | 0 | Active |
| US10396800B2 | Compensation memory (CM) for power application | Electricity | 0 | Active |
| US10320391B2 | Pulse-width modulation (PWM) control loop for power application | Emerging Cross-Sectional Technologies | 0 | Active |
| US10106773B2 | Isolation and use of pluripotent stem cell population from adult neural crest-derived tissues | Chemistry; Metallurgy | 0 | Active |
| US10135447B2 | Compensation memory (CM) for power application | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.