Inventor

FREDERICK RICHARD W

4 patents

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

KARCHER NORTH AMERICA INC

1 patent

US7943040B2May 17, 2011

Wastewater treatment and recycling system

KARCHER NORTH AMERICA INC21 citations89

ASHLEY DENNIS

1 patent

US8480888B2Jul 9, 2013

Immediate cleaning and recirculation of cleaning fluid and method of using same

ASHLEY DENNIS13 citations75

FREDERICK RICHARD W

1 patent

USD318627SJul 30, 1991

Rotating equipment alignment analysis instrument

FREDERICK RICHARD W12 citations65

ROTAQUIP INC

1 patent

USD350076SAug 30, 1994

Level gauge

ROTAQUIP INC4 citations47