Vlad Zaharia
23Patents
11h-index
29Co-inventors
71Inventor score
Filing activity: Jul 6, 1992 → Jul 18, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6435315B1 | Absolute position reference system for an elevator | Performing Operations; Transporting | 67 | Expired |
| US6707374B1 | Elevator access security | Performing Operations; Transporting | 67 | Expired |
| US7353915B2 | Automatic destination entry system with override capability | Performing Operations; Transporting | 56 | Active |
| US5952626A | Individual elevator call changing | Performing Operations; Transporting | 54 | Expired |
| US6209685A | Selective, automatic elevator call registering system | Performing Operations; Transporting | 51 | Expired |
| US7328775B2 | Destination entry system with delayed elevator car assignment | Performing Operations; Transporting | 30 | Active |
| US7597176B2 | Elevator car position determining system and method using a signal filling technique | Performing Operations; Transporting | 23 | Expired |
| US5708416A | Wireless detection or control arrangement for escalator or moving walk | Performing Operations; Transporting | 20 | Expired |
| US5601178A | Detection of escalator safety circuit component operability | Performing Operations; Transporting | 14 | Expired |
| US8177036B2 | Communication of elevator reassignment information in a group elevator system | Performing Operations; Transporting | 13 | Active |
| US5295567A | System for emergency stopping of escalator handrail | Performing Operations; Transporting | 12 | Expired |
| US7793762B2 | Destination entry passenger interface with multiple functions | Performing Operations; Transporting | 11 | Active |
| US5799755A | Linear motor transfer of cab horizontally between elevator and bogey platforms | Electricity | 11 | Expired |
| US7559408B2 | Correlating sounds to elevators serving destination floors | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5886497A | Control arrangement for escalator or moving walk | Physics | 11 | Expired |
| US6483047B1 | Elevator brake load weighing system | Physics | 10 | Expired |
| US5316121A | Escalator missing step detection | Performing Operations; Transporting | 10 | Expired |
| US5645156A | Device for monitoring escalator handrail speed | Physics | 10 | Expired |
| US5245315A | Fiber optic escalator handrail intrusion detector shield | Performing Operations; Transporting | 10 | Expired |
| US5361887A | Apparatus for detecting an irregularity in the frequency of steps passing a particular point within a passenger conveying device | Performing Operations; Transporting | 9 | Expired |
| US5186300A | Starting circuit and method for escalators and moving walks | Performing Operations; Transporting | 8 | Expired |
| US6943508B2 | Tubular linear synchronous motor control for elevator doors | Performing Operations; Transporting | 7 | Expired |
| US7202615B2 | Tubular linear synchronous motor control for elevator doors | Performing Operations; Transporting | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.