Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Delayed unlocking push-down type emergency door-locking device

Delayed unlocking push-down type emergency door-locking device

US Patent 12480336 · Granted Nov 25, 2025

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Wearable ultrasonic therapeutic device controlled by mobile electronic device2023
Electrochemical dephosphorylation technique for treating Alzheimer's disease and2021
Color-changing eye drops for early screening alzheimer's disease and application2020
Color-changing container with two-dimensional and/or three-dimensional pattern2019
Paper food container2017