Herbert L. Ko
11Patents
7h-index
6Co-inventors
59Inventor score
Filing activity: Oct 24, 1988 → Jan 13, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6651488B2 | Systems and methods of monitoring thin film deposition | Physics | 80 | Expired |
| US6668618B2 | Systems and methods of monitoring thin film deposition | Physics | 72 | Expired |
| US5248941A | Superconducting magnetic field sensing apparatus having digital output, on-chip quantum flux packet feedback and high bias margins | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4977402A | Nonhysteretic periodic-threshold SQUID comparator and A/D converter | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5266844A | Timing discriminator circuit and method for determining the arrival order of input signals | Physics | 10 | Expired |
| US5192951A | Analog-to-digital converter circuits and methods using superconductive elements | Emerging Cross-Sectional Technologies | 9 | Expired |
| US8680944B2 | Single-chip duplexer with isolation shield between transmit and receive filters | Electricity | 9 | Active |
| US7574185B2 | Method and apparatus for generating a phase-locked output signal | Electricity | 7 | Active |
| US6922402B1 | Mutual frequency locking across a link | Electricity | 7 | Expired |
| US5351049A | Superconducting quantizer and A/D converter system | Electricity | 6 | Expired |
| US7321634B2 | Method and apparatus for variable sigma-delta modulation | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.