Inventor · disambiguated record
Stephen D. Walker
Also filed as: WALKER STEPHEN · WALKER STEPHEN D · WALKER STEPHEN DANIEL
12 granted patents·5 pending applications·1,106 citations·filing 1983–2012
94Inventor score
Top patents by PatentIndex Score
17 records- 0195US7251516B2Noninvasive glucose sensorNOSTIX LLC·Filed 2004·Granted Jul 31, 2007·140 cites·27 claims
- 0291US6690958B1Ultrasound-guided near infrared spectrophotometerNOSTIX LLC·Filed 2002·Granted Feb 10, 2004·370 cites·25 claims
- 0388US6091504AMethod and apparatus for measuring gas concentration using a semiconductor laserSQUARE ONE TECHNOLOGY INC·Filed 1998·Granted Jul 18, 2000·126 cites·19 claims
- 0487US7785247B2Physiologic pulsatile pumpMEDICAL ENGINEERING CO LLC·Filed 2007·Granted Aug 31, 2010·35 cites·12 claims
- 0583US6802812B1Noninvasive optical sensor for measuring near infrared light absorbing analytesNOSTIX LLC·Filed 2001·Granted Oct 12, 2004·162 cites·35 claims
- 0683US6453183B1Cerebral oxygenation monitorFiled 2000·Granted Sep 17, 2002·166 cites·7 claims
- 0782US5570697ASensor for analyzing molecular speciesVIXEL CORP·Filed 1994·Granted Nov 5, 1996·56 cites·60 claims
- 0857US4542745AUltrasonic emulsion fluidsTECHNICARE CORP·Filed 1983·Granted Sep 24, 1985·15 cites·16 claims
- 0956US5731581AApparatus for automatic identification of gas samplesOHMEDA INC·Filed 1995·Granted Mar 24, 1998·20 cites·24 claims
- 1051US5920069AApparatus for automatic identification of gas samplesDATEX OHMEDA INC·Filed 1997·Granted Jul 6, 1999·16 cites·21 claims
- 1148US2009264724A1Serum sampling apparatus and catheterNOSTIX LLC·Filed 2008·Application pending·0 cites
- 1247US2009018483A1Infrared Sample ChamberWALKER STEPHEN D·Filed 2007·Application pending·0 cites
- 1346US2009047177A1Lactate concentration measurement deviceWALKER STEPHEN D·Filed 2007·Application pending·0 cites
- 1445US2009018416A1Analyte Concentration Measurement DeviceWALKER STEPHEN D·Filed 2007·Application pending·0 cites
- 1544US2008004513A1VCSEL Tissue SpectrometerWALKER STEPHEN D·Filed 2006·Application pending·0 cites
- 1641US8540617B2Extracorporeal pumping methodsTATUM TANI·Filed 2012·Granted Sep 24, 2013·0 cites·20 claims
- 1733US8425396B2Physiologic pulsatile pumpTATUM TANI·Filed 2010·Granted Apr 23, 2013·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →