Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Hand-washing compliance device with a motion-activated display of motion-controlled messages

Hand-washing compliance device with a motion-activated display of motion-controlled messages

US Patent 9875639 · Granted Jan 23, 2018

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Optical imaging lens2025
Optical imaging lens2025
Ocular optical system2025
Optical imaging lens2025
Optical lens set2024
Near-infrared lens for cameras in mobile devices2023
Ocular optical system2022
Near-infrared lens for cameras in mobile devices2021
Optical imaging lens2021
Optical lens assembly2020
Optical imaging lens2020
Ocular optical system2020