DK

Dennis John Kohlhafer

AT Active Signal Technologies: 4 patents #5 of 12Top 45%
📍 Ellicott City, MD: #319 of 1,185 inventorsTop 30%
🗺 Maryland: #8,004 of 35,612 inventorsTop 25%
Overall (All Time): #1,184,345 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9947448 Electromagnetic opposing field actuators 2018-04-17
9390875 Electromagnetic opposing field actuators 2016-07-12
9078571 High sensitivity noise immune stethoscope Keith Bridger, Arthur V. Cooke, Joseph J. Lutian, John M. Sewell, Richard E. Strite 2015-07-14
8265291 High sensitivity noise immune stethoscope Keith Bridger, Arthur V. Cooke, Joseph J. Lutian, John M. Sewell, Richard E. Strite 2012-09-11