Inventor

BELCHER MARK D

4 patents

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

DONALDSON CO INC

2 patents

US4860644AAug 29, 1989

Articulatable fume exhauster trunk

DONALDSON CO INC1,069 citations93

US4792344ADec 20, 1988

Air filtering method and apparatus

DONALDSON CO INC28 citations86

CONWED CORP

1 patent

US4083273AApr 11, 1978

Hole punching method and apparatus

CONWED CORP7 citations70

BABCOCK BRIAN D

1 patent

US9446340B2Sep 20, 2016

Air filter cartridge

BABCOCK BRIAN D1 citations30