DJ

Douglas M. Johnston

MIT: 12 patents #293 of 9,367Top 4%
CA Cardiopulmonary: 4 patents #3 of 14Top 25%
🗺 Massachusetts: #7,501 of 88,656 inventorsTop 9%
Overall (All Time): #298,119 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
9448061 Selecting an earpiece based on dynamic data Douglas P. Hart, Federico Frigerio, Manas C. Menon, Daniel Vlasic 2016-09-20
9291565 Three dimensional scanning using membrane with optical features Douglas P. Hart, Federico Frigerio, Manas C. Menon, Daniel Vlasic 2016-03-22
9175945 Evaluating fit of an earpiece based on dynamic data Douglas P. Hart, Federico Frigerio, Manas C. Menon, Daniel Vlasic 2015-11-03
9170199 Enhanced sensors in three dimensional scanning system Douglas P. Hart, Federico Frigerio, Manas C. Menon, Daniel Vlasic 2015-10-27
9170200 Inflatable membrane with hazard mitigation Douglas P. Hart, Federico Frigerio, Manas C. Menon, Daniel Vlasic 2015-10-27
9140649 Inflatable membrane having non-uniform inflation characteristic Douglas P. Hart, Federico Frigerio, Manas C. Menon, Daniel Vlasic 2015-09-22
9013701 Positioning an input transducer for an earpiece based upon dynamic data Douglas P. Hart, Federico Frigerio, Manas C. Menon, Daniel Vlasic 2015-04-21
8874404 Simulating earpiece fit based upon dynamic data Douglas P. Hart, Federico Frigerio, Manas C. Menon, Daniel Vlasic 2014-10-28
8845526 Integrated otoscope and three dimensional scanning system Douglas P. Hart, Federico Frigerio, Manas C. Menon, Daniel Vlasic 2014-09-30
8743377 Using dynamic data to determine a material profile for earpiece Douglas P. Hart, Federico Frigerio, Manas C. Menon, Daniel Vlasic 2014-06-03
8493574 Imaging shape changes in ear canals Douglas P. Hart, Federico Frigerio, Manas C. Menon, Daniel Vlasic 2013-07-23
8384916 Dynamic three-dimensional imaging of ear canals Douglas P. Hart, Federico Frigerio, Manas C. Menon, Daniel Vlasic 2013-02-26
6158432 Ventilator control system and method James W. Biondi, Gerhardt P. Schroeder, Donald D. Gilmore, Robert Reynolds 2000-12-12
5931160 Ventilator control system and method Don A. Gilmore, Gary M. Schroeder 1999-08-03
5664563 Pneumatic system Gary M. Schroeder, James W. Biondi 1997-09-09
5377671 Cardiac synchronous ventilation James W. Biondi, Stephen J. Herman 1995-01-03