JB

Jack Biersdorff

CS C & K Systems: 2 patents #8 of 24Top 35%
Overall (All Time): #2,323,202 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
D307245 Intrusion detector unit — 1990-04-17
4841284 Infrared intrusion detection system incorporating a fresnel lens and a mirror — 1989-06-20