Inventor
CHENG XUEFENG
US14 patents
⚠️ This page may combine multiple inventors who share the name “CHENG XUEFENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PHOTONIFY TECHNOLOGIES INC
4 patentsUS6597931B1Jul 22, 2003
System and method for absolute oxygen saturation
PHOTONIFY TECHNOLOGIES INC247 citations97
US6587703B2Jul 1, 2003
System and method for measuring absolute oxygen saturation
PHOTONIFY TECHNOLOGIES INC276 citations97
US6516209B2Feb 4, 2003
Self-calibrating optical imaging system
PHOTONIFY TECHNOLOGIES INC160 citations97
US6735458B2May 11, 2004
Self-calibrating optical imaging system
PHOTONIFY TECHNOLOGIES INC99 citations96
MESPERE LIFESCIENCES INC
4 patentsUS8918153B2Dec 23, 2014
Method and device for measuring parameters of cardiac function
MESPERE LIFESCIENCES INC10 citations82
US8788005B1Jul 22, 2014
System and method for non-invasive monitoring of cerebral tissue hemodynamics
MESPERE LIFESCIENCES INC7 citations82
US10398364B2Sep 3, 2019
Method and device for measuring venous blood oxygenation
MESPERE LIFESCIENCES INC6 citations71
US11096598B2Aug 24, 2021
System and method for non-invasive monitoring of central venous pressure
MESPERE LIFESCIENCES INC0 citations50