Ismail Agirman
51Patents
7h-index
49Co-inventors
72Inventor score
Filing activity: Nov 10, 2000 → Jul 6, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6492788B1 | Method and apparatus for encoderless operation of a permanent magnet synchronous motor in an elevator | Electricity | 33 | Expired |
| US8230978B2 | Elevator regenerative drive with automatic rescue operation | Performing Operations; Transporting | 32 | Active |
| US10381968B2 | Converter pulse width modulation strategies for three phase regenerative drives | Emerging Cross-Sectional Technologies | 27 | Active |
| US8127894B2 | Elevator motor drive tolerant of an irregular power source | Performing Operations; Transporting | 13 | Active |
| US6459599B1 | Determining phase of AC mains in PWM controlled converters without voltage sensors | Electricity | 12 | Expired |
| US9906183B1 | Parallel interleaved 2-level or 3-level regenerative drives | Electricity | 11 | Active |
| US8629637B2 | Operation of a three-phase regenerative drive from mixed DC and single phase AC power sources | Electricity | 10 | Active |
| US8789659B2 | System and method for operating a motor during normal and power failure conditions | Performing Operations; Transporting | 7 | Active |
| US10059563B2 | Elevator car speed control in a battery powered elevator system | Performing Operations; Transporting | 4 | Active |
| US10218262B1 | Hybrid direct current link system for a regenerative drive | Electricity | 3 | Active |
| US10008917B2 | Bus capacitor bank configuration for a multi-level regenerative drive | Electricity | 3 | Active |
| US8006808B2 | Managing an encoder malfunction in an elevator drive system | Performing Operations; Transporting | 2 | Active |
| US9511976B2 | Position feedback for elevator system | Physics | 2 | Active |
| US7609534B2 | Operating a three phase device using single phase power | Electricity | 2 | Expired |
| US9815665B2 | Battery mounting in elevator hoistway | Performing Operations; Transporting | 2 | Active |
| US11772508B2 | Intelligent charging connector for transport refrigeration system | Emerging Cross-Sectional Technologies | 1 | Active |
| US10221038B2 | Control strategies for multilevel line regenerative drive | Electricity | 1 | Active |
| US10246294B2 | Bus capacitor bank configuration for a regenerative drive | Performing Operations; Transporting | 1 | Active |
| US10654682B2 | Conveyance system having paralleled drives | Electricity | 1 | Active |
| US9957131B2 | Elevator speed control | Performing Operations; Transporting | 1 | Active |
| US10343872B2 | Elevator system having battery and energy storage device | Emerging Cross-Sectional Technologies | 1 | Active |
| US10099894B2 | Active damping of a hovering elevator car based on vertical oscillation of the hovering elevator car | Performing Operations; Transporting | 1 | Active |
| US10273119B2 | Elevator load weighing system | Physics | 1 | Active |
| US9586789B2 | Elevator braking in a battery powered elevator system | Electricity | 1 | Active |
| US12355339B2 | Hybrid power system for transport refrigeration systems | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.