Inventor

FRANK JOHN H

US5 patents

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

FRANK JOHN H

1 patent

USD413416SAug 31, 1999

Cat litter box

FRANK JOHN H28 citations86

MAGLINE INC

1 patent

US5277436AJan 11, 1994

Combination hand truck and stair ramp

MAGLINE INC51 citations86

GRADALL COMPANY

1 patent

US4822237AApr 18, 1989

Extended reach materials handling apparatus

GRADALL COMPANY43 citations85

HERR DANIEL J

1 patent

US9018591B2Apr 28, 2015

Ruggedized tool and detector device

HERR DANIEL J7 citations75

WARNER SWASEY CO

1 patent

US4346734AAug 31, 1982

Locking device

WARNER SWASEY CO13 citations71