Inventor

HILL RICHARD W

GB7 patents

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

PETRAS GREGORY J

2 patents

US7664747B2Feb 16, 2010

System for creating and maintaining a database of information utilizing user opinions

PETRAS GREGORY J24 citations87

US8024334B2Sep 20, 2011

System for creating and maintaining a database of information utilizing user options

PETRAS GREGORY J3 citations57

(unassigned)

2 patents

US5607279AMar 4, 1997

Towing lift accessory

19 citations74

US6089818AJul 18, 2000

Towing lift accessory

15 citations66

INVOLVE TECHNOLOGY INC

1 patent

US7143089B2Nov 28, 2006

System for creating and maintaining a database of information utilizing user opinions

INVOLVE TECHNOLOGY INC252 citations93

HILL RICHARD W

1 patent

US5224444AJul 6, 1993

Walking aids for animals

HILL RICHARD W40 citations88

US ENERGY

1 patent

US4499945AFeb 19, 1985

Silane-propane ignitor/burner

US ENERGY17 citations64