George E. Rollins
23Patents
9h-index
15Co-inventors
72Inventor score
Filing activity: Jul 26, 1982 → Dec 22, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7616095B2 | Electronic token to provide sequential event control and monitoring | Emerging Cross-Sectional Technologies | 64 | Active |
| US7358819B2 | Reduced-size sensor circuit | Electricity | 32 | Expired |
| US7912376B2 | Non-interfering transmitted-beam pairs | Electricity | 19 | Active |
| US8046588B2 | Audit trail in a programmable safety instrumented system via biometric signature(s) | Physics | 19 | Active |
| US7533798B2 | Data acquisition and processing system for risk assessment | Emerging Cross-Sectional Technologies | 17 | Active |
| US7808235B2 | Apparatus and methods for proximity sensing circuitry | Physics | 12 | Active |
| US7932809B2 | RFID/biometric area protection | Emerging Cross-Sectional Technologies | 11 | Active |
| US7508512B1 | Continuous optical self-alignment for light curtains and optical presence sensors for simplification and maintenance of alignment | Physics | 10 | Active |
| US7522066B2 | Systems and methods that evaluate distance to potential hazards utilizing overlapping sensing zones | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US7313502B2 | System and method to combine and weight multiple sensors with overlapping sensing range to create a measurement system utilized in a high integrity or safety environment | Physics | 7 | Expired |
| US7657814B2 | Optimizing availability and safety by reconfiguring and auto-adjusting redundancy | Physics | 4 | Active |
| US4494088A | Oscillator with capacitor charged and discharged by current proportional to a reference current | Electricity | 4 | Expired |
| US7539550B2 | Safety versus availability graphical user interface | Physics | 4 | Active |
| US7652759B1 | Industrial device with adaptive optics | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7994777B2 | Apparatus and methods for an inductive proximity sensor | Electricity | 2 | Active |
| US5144286A | Photosensitive switch with circuit for indicating malfunction | Physics | 2 | Expired |
| US7442917B1 | Method for using a single optical emitter/receiver pair for creating a light curtain using LCD+MEMS technology for beam deflection | Physics | 1 | Expired |
| US7566864B2 | Apparatus and methods for an area scanner having an adjustable mirror and a scan mirror with scan operable to 360 degrees | Physics | 0 | Active |
| US9798041B2 | Sensitivity optimization of individual light curtain channels | Physics | 0 | Active |
| US7232984B2 | Sensor with improved gain-setting capability | Physics | 0 | Expired |
| US9599448B2 | Apparatus and methods for proximity sensing circuitry | Physics | 0 | Active |
| US9628183B2 | Transceiver element for an optical unit of a photoelectric barrier and photoelectric light curtain | Electricity | 0 | Active |
| US7223957B2 | Sensor including circuitry for recovering time-varying information and removing DC offsets | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.