Inventor

ALLEN III WILLIAM C

US3 patents

Patents

3 patents

US11448238B2Sep 20, 2022

Pneumatic landfill pump cycle counter

Q E D ENV SYSTEMS INC2 citations68

US11560786B2Jan 24, 2023

Liquid level sensor system

Q E D ENV SYSTEMS INC1 citations56

US12454965B2Oct 28, 2025

Landfill pump having metered cycling

Q E D ENV SYSTEMS INC0 citations45