Inventor

NORTON JOHN A

US3 patents

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

BIRD JOHNSON CO

1 patent

US4801243AJan 31, 1989

Adjustable diameter screw propeller

BIRD JOHNSON CO125 citations92

BOLT BERANEK & NEWMAN

1 patent

US3972646AAug 3, 1976

Propeller blade structures and methods particularly adapted for marine ducted reversible thrusters and the like for minimizing cavitation and related noise

BOLT BERANEK & NEWMAN39 citations90

(unassigned)

1 patent

US6052837AApr 25, 2000

Toilet ventillation system

37 citations82