Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Drive assembly for opening and closing a rolling door

Drive assembly for opening and closing a rolling door

US Patent 6412539 · Granted Jul 2, 2002

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Power generating system and power generating method2025
Method and apparatus for treating combustible substance2025
Sorting device2024
Organic sludge treatment device and treatment method2023
Method and apparatus for reducing mercury content of cement kiln exhaust gas2021
Diiodosilane producing method2021
Heat pipe2020
Dual clutch device2019
Thermoacoustic heating device2019
Method for producing gamma-valerolactone2019
Method for producing levulinic acid ester2018
Displacement sensor including a voltage converting unit that contains a resistor2017