Inventor

STETSON DOUGLAS

US3 patents

Patents

3 patents

US10156467B2Dec 18, 2018

Visual liquid level indicator

GEMS SENSORS INC5 citations78

US11435217B2Sep 6, 2022

Visual liquid level indicator

GEMS SENSORS INC0 citations57

US10782176B2Sep 22, 2020

Visual liquid level indicator

GEMS SENSORS INC0 citations46