Charles Winston
30Patents
15h-index
47Co-inventors
81Inventor score
Filing activity: May 23, 1988 → Jun 5, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5711480A | Low-cost wireless HVAC systems | Physics | 131 | Expired |
| US6782150B2 | Apparatus for sensing fluid in a pipe | Physics | 123 | Expired |
| US6450037B1 | Non-intrusive fiber optic pressure sensor for measuring unsteady pressures within a pipe | Physics | 110 | Expired |
| US6691584B2 | Flow rate measurement using unsteady pressures | Physics | 105 | Expired |
| US6536291B1 | Optical flow rate measurement using unsteady pressures | Physics | 102 | Expired |
| US6889562B2 | Flow rate measurement for industrial sensing applications using unsteady pressures | Physics | 80 | Expired |
| US6785004B2 | Method and apparatus for interrogating fiber optic sensors | Fixed Constructions | 70 | Expired |
| US7261002B1 | Flow rate measurement for industrial sensing applications using unsteady pressures | Physics | 62 | Expired |
| US6109396A | Remote elevator call placement with provisional call verification | Performing Operations; Transporting | 62 | Expired |
| US6959604B2 | Apparatus and method having an optical fiber disposed circumferentially around the pipe for measuring unsteady pressure within a pipe | Physics | 53 | Expired |
| US5024535A | Semiconductor light source temperature measurement | Electricity | 40 | Expired |
| US5410149A | Optical obstruction detector with light barriers having planes of light for controlling automatic doors | Fixed Constructions | 37 | Expired |
| US6351987B1 | Fiber optic pressure sensor for DC pressure and temperature | Physics | 22 | Expired |
| US5938823A | Integrated electrostatic collection and microwave sterilization for bioaerosol air purification | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5535626A | Sensor having direct-mounted sensing element | Physics | 20 | Expired |
| US7253897B2 | Optical spectrum analyzer | Electricity | 15 | Expired |
| US7121152B2 | Portable flow measurement apparatus having an array of sensors | Physics | 13 | Expired |
| US7587948B2 | Flow rate measurement for industrial sensing applications using unsteady pressures | Physics | 9 | Active |
| US5131750A | Eigenfrequency phase shift control loop | Physics | 6 | Expired |
| US7463828B2 | Optical channel monitor | Electricity | 5 | Expired |
| US11275009B2 | Techniques for sensing the volume and/or viscosity of concrete in a rotating container | Physics | 5 | Active |
| US4850043A | High integrity optical data transmission system | Electricity | 5 | Expired |
| US5159575A | Single stage demodulator with reference signal phase dither | Physics | 3 | Expired |
| US7302861B2 | Portable flow measurement apparatus having an array of sensors | Physics | 3 | Active |
| US7831398B2 | Method for quantifying varying propagation characteristics of normal incident ultrasonic signals as used in correlation based flow measurement | Physics | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.