Inventor

BILLS CHRIS

US4 patents

Patents

4 patents

USD818414SMay 22, 2018

Vortex propeller

BILLS CHRIS11 citations79

USD805474SDec 19, 2017

Vortex propeller

BILLS CHRIS7 citations79

US8905706B2Dec 9, 2014

Vortex propeller

BILLS CHRIS14 citations78

US10260479B2Apr 16, 2019

Vortex propeller

BILLS CHRIS6 citations68