Inventor

WILLIS RICHARD L

US2 patents

⚠️ This page may combine multiple inventors who share the name “WILLIS RICHARD L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MOTOROLA INC

1 patent

US7668332B2Feb 23, 2010

Audio porting assembly

MOTOROLA INC22 citations88

BALLARD POWER SYSTEMS

1 patent

US6843749B2Jan 18, 2005

Apparatus and method to achieve multiple effective ratios from a fixed ratio transaxle

BALLARD POWER SYSTEMS10 citations62