Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Bias torque for elevator hoist drive to avoid rollback, rollforward

Bias torque for elevator hoist drive to avoid rollback, rollforward

US Patent 5531294 · Granted Jul 2, 1996

Estimated economic value: $61,182,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Electronic vaping device having pressure sensor2025
Charger assembly and charging system for an electronic vaping device2025
Electronic vaping device and components thereof2025
System and method of obtaining smoking topography data2024
Charger assembly and charging system for an electronic vaping device2024
Electronic vaping device having pressure sensor2023
Charger assembly and charging system for an electronic vaping device2023
System and method of obtaining smoking topography data2023
Electronic vaping device and components thereof2023
Electronic vaping device and components thereof2023
Electronic vaping device having pressure sensor2022
Charger assembly and charging system for an electronic vaping device2022