RM

Richard L. McMaster

DS Detection Systems: 6 patents #6 of 23Top 30%
Overall (All Time): #763,769 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5705988 Photoelectric smoke detector with count based A/D and D/A converter 1998-01-06
5552770 Glass break detection using multiple frequency ranges 1996-09-03
5450061 Glass break detection using temporal sequence of selected frequency characteristics 1995-09-12
5438317 Glass break detection with noise riding feature 1995-08-01
4963749 Quad element intrusion detection 1990-10-16
4876445 Intrusion detection device with extended field of view 1989-10-24
4660024 Dual technology intruder detection system 1987-04-21