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John M. Sewell

AT Active Signal Technologies: 5 patents #3 of 12Top 25%
LM Lockheed Martin: 2 patents #1,600 of 6,507Top 25%
📍 Baltimore, MD: #485 of 4,923 inventorsTop 10%
🗺 Maryland: #4,049 of 35,612 inventorsTop 15%
Overall (All Time): #648,348 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
9078571 High sensitivity noise immune stethoscope Keith Bridger, Arthur V. Cooke, Dennis John Kohlhafer, Joseph J. Lutian, Richard E. Strite 2015-07-14
8265291 High sensitivity noise immune stethoscope Keith Bridger, Arthur V. Cooke, Dennis John Kohlhafer, Joseph J. Lutian, Richard E. Strite 2012-09-11
6887199 Brain assessment monitor Keith Bridger, Arthur V. Cooke, Philip M. Kuhn, Joseph J. Lutian, Edward J. Passaro +2 more 2005-05-03
6751954 Compact hybrid actuator Keith Bridger, Arthur V. Cooke, Frank Crowne, Joseph J. Lutian, George L. Small 2004-06-22
6491647 Physiological sensing device Keith Bridger, Arthur V. Cooke, Philip M. Kuhn, Joseph J. Lutian, Edward J. Passaro +2 more 2002-12-10
5919144 Apparatus and method for measurement of intracranial pressure with lower frequencies of acoustic signal Keith Bridger, Arthur V. Cooke, Frank Crowne, Philip M. Kuhn, Joseph J. Lutian +1 more 1999-07-06
5394376 Method and apparatus for acoustic attenuation Laurence R. Riddle, Paul Kurtz 1995-02-28
4907209 Low frequency sound transducer William F. Werner 1990-03-06