Charles R. Willcox
50Patents
13h-index
36Co-inventors
84Inventor score
Filing activity: Jun 27, 1983 → Mar 22, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5665899A | Pressure sensor diagnostics in a process transmitter | Physics | 135 | Expired |
| US7003187B2 | Optical switch with moveable holographic optical element | Physics | 118 | Expired |
| US6609825B2 | Total air temperature probe providing improved anti-icing performance and reduced deicing heater error | Physics | 52 | Expired |
| US7262693B2 | Process field device with radio frequency communication | Emerging Cross-Sectional Technologies | 49 | Expired |
| US5515732A | Capacitive pressure sensor and reference with stress isolating pedestal | Physics | 46 | Expired |
| US6425290B2 | Oil-less differential pressure sensor | Physics | 34 | Expired |
| US6505516B1 | Capacitive pressure sensing with moving dielectric | Physics | 29 | Expired |
| US6840672B2 | Total air temperature probe providing improved anti-icing performance and reduced deicing heater error | Physics | 27 | Expired |
| US6414282B1 | Active heater control circuit and method used for aerospace probes | Physics | 26 | Expired |
| US7357572B2 | Total air temperature probe having improved deicing heater error performance | Physics | 23 | Expired |
| US5695590A | Anodic bonding method for making pressure sensor | Physics | 22 | Expired |
| US6612174B2 | Optical pressure sensor | Physics | 20 | Expired |
| US6895161B2 | Variable optical attenuator | Physics | 14 | Expired |
| US8104955B2 | Aspirated enhanced total air temperature probe | Physics | 13 | Active |
| US7828477B2 | Aspirated enhanced total air temperature probe | Physics | 13 | Active |
| US7308830B2 | Pressure sensor fault detection | Physics | 12 | Expired |
| USD497114S1 | Total air temperature probe | General | 12 | Expired |
| US7918134B2 | Thermal-based diagnostic system for process transmitter | Emerging Cross-Sectional Technologies | 11 | Active |
| US7450812B2 | Compensated variable optical attenuator | Physics | 11 | Expired |
| US7177505B2 | MEMS-based actuator devices using electrets | Physics | 10 | Expired |
| USD587610S1 | Total air temperature probe | General | 8 | Expired |
| US8037750B2 | Impending icing probe with thermal isolation pedestal | Performing Operations; Transporting | 8 | Active |
| USD545227S1 | Total air temperature probe | General | 7 | Expired |
| US8429978B2 | Resonant frequency based pressure sensor | Physics | 7 | Active |
| US7334484B2 | Line pressure measurement using differential pressure sensor | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.