Inventor

BLUE DAVID

US7 patents

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

BECKER UNDERWOOD INC

2 patents

US6536939B1Mar 25, 2003

Solid/liquid mixing system

BECKER UNDERWOOD INC76 citations95

US6517232B1Feb 11, 2003

Mixing systems

BECKER UNDERWOOD INC53 citations89

(unassigned)

2 patents

US5866201AFeb 2, 1999

Solid/liquid rotational mixing system

29 citations89

US6162496ADec 19, 2000

Method of mixing

11 citations70

CUBIC CORP

2 patents

US10049364B2Aug 14, 2018

Credit and debit fraud card usage monitoring for transit

CUBIC CORP3 citations66

US9760880B2Sep 12, 2017

Facilitating cash payment for transit mobile applications

CUBIC CORP0 citations32

NORTHWEST RIVER SUPPLIES INC

1 patent

USD1098887SOct 21, 2025

Raft frame fitting

NORTHWEST RIVER SUPPLIES INC0 citations59