David J. Sirag, Jr.
21Patents
12h-index
22Co-inventors
77Inventor score
Filing activity: Dec 17, 1991 → Dec 16, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6109396A | Remote elevator call placement with provisional call verification | Performing Operations; Transporting | 62 | Expired |
| US5260526A | Elevator car assignment conditioned on minimum criteria | Performing Operations; Transporting | 31 | Expired |
| US5260527A | Using fuzzy logic to determine the number of passengers in an elevator car | Performing Operations; Transporting | 23 | Expired |
| US5672853A | Elevator control neural network | Performing Operations; Transporting | 21 | Expired |
| US5243155A | Estimating number of people waiting for an elevator car based on crop and fuzzy values | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5252789A | Using fuzzy logic to determine the traffic mode of an elevator system | Performing Operations; Transporting | 18 | Expired |
| US5219042A | Using fuzzy logic to determine the number of passengers entering and exiting an elevator car | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6545236B2 | Vehicle interior component having a flexible cover with integrated circuitry | Electricity | 16 | Expired |
| US6357554B1 | Elevator ride improvements utilizing smart floor | Performing Operations; Transporting | 16 | Expired |
| US5248860A | Using fuzzy logic to determine elevator car assignment utility | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5338904A | Early car announcement | Performing Operations; Transporting | 14 | Expired |
| US5258587A | Estimating elevator passengers from gender ratioed weight | Performing Operations; Transporting | 14 | Expired |
| US5347093A | Fuzzy tailoring of elevator passenger fuzzy sets | Performing Operations; Transporting | 11 | Expired |
| US7490698B2 | Elevator traffic control | Performing Operations; Transporting | 10 | Expired |
| US8307952B2 | Elevator system with multiple cars in a hoistway | Performing Operations; Transporting | 9 | Active |
| US7487861B2 | Elevator traffic control | Physics | 7 | Expired |
| US5564550A | Adapting escalator speed to traffic using fuzzy logic | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7475757B2 | Elevator dispatching with balanced passenger perception of waiting | Performing Operations; Transporting | 5 | Expired |
| US6328135A | Modifying elevator group behavior utilizing complexity theory | Performing Operations; Transporting | 5 | Expired |
| US5668356A | Elevator dispatching employing hall call assignments based on fuzzy response time logic | Performing Operations; Transporting | 4 | Expired |
| US7267202B2 | Elevator dispatching with guaranteed time performance using real-time service allocation | Performing Operations; Transporting | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.