Inventor

KOSTUSIAK KARL H

US4 patents

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

DETECTION SYSTEMS INC

3 patents

US5083106AJan 21, 1992

Intruder detection system with programmable countdown timer for self-supervision

DETECTION SYSTEMS INC221 citations97

US5115224AMay 19, 1992

Personal security system network

DETECTION SYSTEMS INC102 citations92

US5233640AAug 3, 1993

Security system with backup dialer

DETECTION SYSTEMS INC46 citations89

DETECTION SYSTEM

1 patent

US5057816AOct 15, 1991

Multizone intruder detection system with forced walk-test

DETECTION SYSTEM5 citations55