Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Audience response system with batteryless response units

Audience response system with batteryless response units

US Patent 9537324 · Granted Jan 3, 2017

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Lighting element2023
Energy harvesting heat engine and actuator2022
Synchronization signaling system2022
Lighting element2021
Energy harvesting heat engine and actuator2019
Energy harvesting heat engine and actuator2018
Vehicle control system2017
Vehicle signal control system2017
Audience response system with batteryless response units2017
Audience response system with batteryless response units2017
Emergency vehicle accessory2016
Emergency vehicle signal control system2016