JM

John D. Marshall

SU Siemens Medical Solutions Usa: 6 patents #215 of 1,486Top 15%
AC Acuson: 5 patents #56 of 252Top 25%
Boston Scientific Scimed: 4 patents #1,064 of 3,579Top 30%
CM Cordance Medical: 2 patents #2 of 3Top 70%
DS Dacco Sci: 1 patents #3 of 7Top 45%
SS Schlumberger Industires, S.A.: 1 patents #93 of 272Top 35%
ST Steris: 1 patents #166 of 316Top 55%
📍 Los Gatos, CA: #434 of 2,986 inventorsTop 15%
🗺 California: #28,827 of 386,348 inventorsTop 8%
Overall (All Time): #215,872 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
12403333 Methods and systems for confirming focus of ultrasound beams Bhaskar Ramamurthy, Mallika Keralapura 2025-09-02
12343200 Intravascular ultrasound systems, catheters, and methods with a manual pullback arrangement Peter Thornton, Lewis J. Thomas, III, Isaac J. Zacharias, Gaylin Mildred Yee 2025-07-01
12017093 Methods and systems for confirming focus of ultrasound beams Bhaskar Ramamurthy, Mallika Keralapura 2024-06-25
9271696 Ultrasound imaging systems with bias circuitry and methods of making and using Donald Masters, Gaylin Mildred Yee 2016-03-01
8946972 Layer switching for an ultrasound transducer array Jian-Hua Mo, Kutay F. Ustuner 2015-02-03
8206308 Shielding for intravascular ultrasound imaging systems and methods of making and using Donald Masters 2012-06-26
8197413 Transducers, devices and systems containing the transducers, and methods of manufacture Ravi Kurse, Marc Stepkowski, Dushyant Shah, Derrik Zimmerman, Joe Carioggia +2 more 2012-06-12
7837626 Contrast agent manipulation with medical ultrasound imaging James E. Chomas, Ismayil M. Guracar, Patrick J. Phillips 2010-11-23
7481577 Ultrasound transducer fault measurement method and system Bhaskar Ramamurthy, Jan-Ulco Kluiwstra 2009-01-27
7266987 Ultrasound transmit and receive path calibration methods and systems Dermot P. McCartan 2007-09-11
7162912 Ultrasound transmit and receive path calibration methods and systems Dermot P. McCartan 2007-01-16
7156551 Ultrasound transducer fault measurement method and system Bhaskar Ramamurthy, Sevig Ayter, Jan-Ulco Kluiwstra, Jerry Hopple 2007-01-02
7125482 Use of electrochemistry to detect buried service lead (Pb) and copper (Cu) water pipes Chester M. Dacres, Dodd V. Ezzard, Keegan S. Rodkey, David G. Deik 2006-10-24
6270460 Apparatus and method to limit the life span of a diagnostic medical ultrasound probe Dermot P. McCartan, Gregory A. Reynolds 2001-08-07
6196649 Convertible surgical equipment and appliance support system Roland D. Block, Robert J. Byrd, Mark E. Chiffon 2001-03-06
6122538 Motion--Monitoring method and system for medical devices John W. Sliwa, Paul E. Chandler, Gelston Howell, S. Lawrence Marple, Jr., Sassan K. Shahidi 2000-09-19
5995348 Ground safety device for medical ultrasound probes Dermot P. McCartan, David Lidgey 1999-11-30
5776065 Apparatus and method for controlling an ultrasound transducer array Behnam Mehmanpazir, Michael Hazarian 1998-07-07
5542425 Apparatus and method for preventing contact damage in electrical equipment Donald R. Mullen 1996-08-06
4876002 Reverse osmosis water purificaiton unit Thomas N. McLain 1989-10-24