Inventor
WALTKE DAVID L
11 patents
⚠️ This page may combine multiple inventors who share the name “WALTKE DAVID L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOOVER GROUP INC
10 patentsUS5746343AMay 5, 1998
Flexible bag for liquids mounted on a frame
HOOVER GROUP INC74 citations95
US4648521AMar 10, 1987
Composite metal and plastic tank
HOOVER GROUP INC58 citations95
US4785966ANov 22, 1988
Slide gate assembly
HOOVER GROUP INC29 citations92
US4932551AJun 12, 1990
Composite tank assembly
HOOVER GROUP INC22 citations81
US4890756AJan 2, 1990
Cylindrical tank with flared upper end
HOOVER GROUP INC20 citations81
USD298450SNov 8, 1988
Tank
HOOVER GROUP INC18 citations81
US4921126AMay 1, 1990
Liquid supply system utilizing stacked tanks
HOOVER GROUP INC14 citations73
USD320255SSep 24, 1991
Portable bulk storage tank
HOOVER GROUP INC3 citations62
USD319286SAug 20, 1991
Corrugated valve guard
HOOVER GROUP INC3 citations59
USD322502SDec 17, 1991
Drum
HOOVER GROUP INC1 citations51