Chew; Bradford B.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chew; Bradford B..The latest application filed is for "oximeter ambient light cancellation".
- Chew; Bradford B. - San Ramon CA
- Chew; Bradford B - San Ramon CA
- Chew; Bradford B. - US
| Patent | Date |
|---|---|
| Oximeter ambient light cancellation Grant 8,874,181 - Petersen , et al. October 28, 2 | 2014-10-28 |
| Opaque, electrically nonconductive region on a medical sensor Grant 8,515,512 - Ollerdessen , et al. August 20, 2 | 2013-08-20 |
| Oximeter Ambient Light Cancellation App 20130123593 - Petersen; Ethan ; et al. | 2013-05-16 |
| Oximeter ambient light cancellation Grant 8,315,684 - Petersen , et al. November 20, 2 | 2012-11-20 |
| Switch-mode oximeter LED drive with a single inductor Grant 8,195,262 - Chew , et al. June 5, 2 | 2012-06-05 |
| Opaque, Electrically Nonconductive Region On A Medical Sensor App 20110066016 - Ollerdessen; Albert L. ; et al. | 2011-03-17 |
| Opaque, electrically nonconductive region on a medical sensor Grant 7,869,849 - Ollerdessen , et al. January 11, 2 | 2011-01-11 |
| Device and method for reducing crosstalk Grant 7,794,266 - Sawatari , et al. September 14, 2 | 2010-09-14 |
| Device and method for reducing crosstalk Grant 7,658,652 - Sawatari , et al. February 9, 2 | 2010-02-09 |
| Device and method for reducing crosstalk App 20090163083 - Sawatari; Ken ; et al. | 2009-06-25 |
| Device for reducing crosstalk Grant 7,476,131 - Sawatari , et al. January 13, 2 | 2009-01-13 |
| Oximeter Ambient Light Cancellation App 20090005662 - Petersen; Ethan ; et al. | 2009-01-01 |
| Oximeter ambient light cancellation Grant 7,400,919 - Petersen , et al. July 15, 2 | 2008-07-15 |
| Oximeter red and IR zero calibration control Grant 7,373,192 - Chew , et al. May 13, 2 | 2008-05-13 |
| Multi-bit ADC with sigma-delta modulation Grant 7,355,539 - Petersen , et al. April 8, 2 | 2008-04-08 |
| Device and method for reducing crosstalk App 20080081492 - Sawatari; Ken ; et al. | 2008-04-03 |
| Device and method for reducing crosstalk App 20080081508 - Sawatari; Ken ; et al. | 2008-04-03 |
| Opaque, electrically nonconductive region on a medical sensor App 20080076982 - Ollerdessen; Albert L. ; et al. | 2008-03-27 |
| Multi-bit ADC with sigma-delta modulation App 20070132618 - Petersen; Ethan ; et al. | 2007-06-14 |
| Oximeter cross-talk reduction Grant 7,215,985 - Petersen , et al. May 8, 2 | 2007-05-08 |
| Delta-sigma modulator for outputting analog representation of physiological signal Grant 7,212,847 - Petersen , et al. May 1, 2 | 2007-05-01 |
| Oximeter ambient light cancellation Grant 7,190,985 - Petersen , et al. March 13, 2 | 2007-03-13 |
| Multi-bit ADC with sigma-delta modulation Grant 7,142,142 - Petersen , et al. November 28, 2 | 2006-11-28 |
| Switch-mode oximeter LED drive with a single inductor App 20060264720 - Chew; Bradford B. ; et al. | 2006-11-23 |
| Oximeter ambient light cancellation App 20060264721 - Petersen; Ethan ; et al. | 2006-11-23 |
| Switch-mode oximeter LED drive with a single inductor Grant 7,120,479 - Chew , et al. October 10, 2 | 2006-10-10 |
| LED forward voltage estimation in pulse oximeter Grant 7,120,480 - Chew , et al. October 10, 2 | 2006-10-10 |
| Oximeter red and IR zero calibration control App 20050187449 - Chew, Bradford B. ; et al. | 2005-08-25 |
| Oximeter cross-talk reduction App 20050187452 - Petersen, Ethan ; et al. | 2005-08-25 |
| Switch-mode oximeter LED drive with a single inductor App 20050187447 - Chew, Bradford B. ; et al. | 2005-08-25 |
| Delta-sigma modulator for outputting analog representation of physiological signal App 20050187453 - Petersen, Ethan ; et al. | 2005-08-25 |
| Oximeter ambient light cancellation App 20050187448 - Petersen, Ethan ; et al. | 2005-08-25 |
| Multi-bit ADC with sigma-delta modulation App 20050184895 - Petersen, Ethan ; et al. | 2005-08-25 |
| LED forward voltage estimation in pulse oximeter App 20050187450 - Chew, Bradford B. ; et al. | 2005-08-25 |
| Oximeter sensor adapter with coding element Grant 6,571,113 - Fein , et al. May 27, 2 | 2003-05-27 |
| Interconnect circuit between non-compatible oximeter and sensor Grant 6,490,466 - Fein , et al. December 3, 2 | 2002-12-03 |
| Active optical oximeter probe adapter Grant 6,023,541 - Merchant , et al. February 8, 2 | 2000-02-08 |
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