Inventor

BIERSACH JAMES E

US5 patents

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

ALERTING COMMUNICATORS OF AMER

2 patents

US4796009AJan 3, 1989

Electronic warning apparatus

ALERTING COMMUNICATORS OF AMER59 citations91

US4945334AJul 31, 1990

Energizing means for electronic warning apparatus

ALERTING COMMUNICATORS OF AMER15 citations69

AMERICAN SIGNAL CORP

1 patent

US5321388AJun 14, 1994

High efficiency phase and amplitude matched multiple horn electronic siren

AMERICAN SIGNAL CORP18 citations67

AMERICAN WATER SERVICES

1 patent

US5680665AOct 28, 1997

Ball conditioning, sorting and collecting apparatus for circulating ball cleaning system

AMERICAN WATER SERVICES14 citations66

BIERSACH JAMES E

1 patent

US4554531ANov 19, 1985

Omnidirectional siren

BIERSACH JAMES E4 citations54