Inventor · disambiguated record
John D. Marshall
Also filed as: MARSHALL JOHN · MARSHALL JOHN D · MARSHALL JOHN DOUGLAS
21 granted patents·6 pending applications·1,236 citations·filing 1988–2025
95Inventor score
Files withSIEMENS MEDICAL SOLUTIONS8ACUSON5BOSTON SCIENT SCIMED INC5CORDANCE MEDICAL INC3DACCO SCI INC1
Top patents by PatentIndex Score
27 records- 0194US7481577B2Ultrasound transducer fault measurement method and systemSIEMENS MEDICAL SOLUTIONS·Filed 2006·Granted Jan 27, 2009·54 cites·5 claims
- 0291US6122538AMotion--Monitoring method and system for medical devicesACUSON·Filed 1997·Granted Sep 19, 2000·743 cites·66 claims
- 0384US12433569B2Ultrasound transducer assemblyCORDANCE MEDICAL INC·Filed 2022·Granted Oct 7, 2025·1 cites·28 claims
- 0484US12017093B2Methods and systems for confirming focus of ultrasound beamsCORDANCE MEDICAL INC·Filed 2023·Granted Jun 25, 2024·1 cites·20 claims
- 0576US6270460B1Apparatus and method to limit the life span of a diagnostic medical ultrasound probeACUSON·Filed 1999·Granted Aug 7, 2001·222 cites·19 claims
- 0676US5542425AApparatus and method for preventing contact damage in electrical equipmentACUSON·Filed 1994·Granted Aug 6, 1996·38 cites·44 claims
- 0774US2025204887A1Intravascular ultrasound systems, catheters, and methods with a manual pullback arrangementBOSTON SCIENT SCIMED INC·Filed 2025·Application pending·0 cites
- 0873US8197413B2Transducers, devices and systems containing the transducers, and methods of manufactureKURSE RAVI·Filed 2009·Granted Jun 12, 2012·14 cites·23 claims
- 0972US12403333B2Methods and systems for confirming focus of ultrasound beamsCORDANCE MEDICAL INC·Filed 2024·Granted Sep 2, 2025·0 cites·18 claims
- 1072US5995348AGround safety device for medical ultrasound probesACUSON·Filed 1997·Granted Nov 30, 1999·36 cites·44 claims
- 1170US7266987B2Ultrasound transmit and receive path calibration methods and systemsSIEMENS MEDICAL SOLUTIONS·Filed 2006·Granted Sep 11, 2007·2 cites·9 claims
- 1270US4876002AReverse osmosis water purificaiton unitSCHLUMBERGER IND INC·Filed 1988·Granted Oct 24, 1989·33 cites·19 claims
- 1368US7837626B2Contrast agent manipulation with medical ultrasound imagingSIEMENS MEDICAL SOLUTIONS·Filed 2005·Granted Nov 23, 2010·5 cites·24 claims
- 1464US12343200B2Intravascular ultrasound systems, catheters, and methods with a manual pullback arrangementBOSTON SCIENT SCIMED INC·Filed 2019·Granted Jul 1, 2025·0 cites·10 claims
- 1561US8206308B2Shielding for intravascular ultrasound imaging systems and methods of making and usingMARSHALL JOHN D·Filed 2009·Granted Jun 26, 2012·2 cites·19 claims
- 1659US7156551B2Ultrasound transducer fault measurement method and systemSIEMENS MEDICAL SOLUTIONS·Filed 2003·Granted Jan 2, 2007·20 cites·16 claims
- 1758US6196649B1Convertible surgical equipment and appliance support systemSTERIS CORP·Filed 1999·Granted Mar 6, 2001·37 cites·12 claims
- 1853US2017164925A1Intravascular ultrasound systems, catheters, and methods with a manual pullback arrangementBOSTON SCIENT SCIMED INC·Filed 2016·Application pending·0 cites
- 1952US7162912B2Ultrasound transmit and receive path calibration methods and systemsSIEMENS MEDICAL SOLUTIONS·Filed 2004·Granted Jan 16, 2007·0 cites·13 claims
- 2049US8946972B2Layer switching for an ultrasound transducer arrayMARSHALL JOHN DOUGLAS·Filed 2006·Granted Feb 3, 2015·1 cites·7 claims
- 2144US5776065AApparatus and method for controlling an ultrasound transducer arrayACUSON·Filed 1996·Granted Jul 7, 1998·27 cites·20 claims
- 2244US2007066901A1Fluid driven mechanical scanning with an ultrsound transducer arraySIEMENS MEDICAL SOLUTIONS·Filed 2005·Application pending·0 cites
- 2343US9271696B2Ultrasound imaging systems with bias circuitry and methods of making and usingBOSTON SCIENT SCIMED INC·Filed 2012·Granted Mar 1, 2016·0 cites·27 claims
- 2440US2011098573A1Systems and methods for coupling a transducer to a control module of an intravascular ultrasound imaging systemBOSTON SCIENT SCIMED INC·Filed 2010·Application pending·0 cites
- 2535US7125482B2Use of electrochemistry to detect buried service lead (Pb) and copper (Cu) water pipesDACCO SCI INC·Filed 2004·Granted Oct 24, 2006·0 cites·1 claims
- 2634US2005148879A1Mode dependent tunable transducers and methods of useSIEMENS MEDICAL SOLUTIONS·Filed 2003·Application pending·0 cites
- 2734US2005225916A1Ultrasound membrane transducer collapse protection system and methodSIEMENS MEDICAL SOLUTIONS·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →