Inventor
CHEN ZEWU
US31 patents
⚠️ This page may combine multiple inventors who share the name “CHEN ZEWU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
X RAY OPTICAL SYS INC
25 patentsUS6829327B1Dec 7, 2004
Total-reflection x-ray fluorescence apparatus and method using a doubly-curved optic
X RAY OPTICAL SYS INC92 citations98
US6934359B2Aug 23, 2005
Wavelength dispersive XRF system using focusing optic for excitation and a focusing monochromator for collection
X RAY OPTICAL SYS INC79 citations97
US6317483B1Nov 13, 2001
Doubly curved optical device with graded atomic planes
X RAY OPTICAL SYS INC70 citations96
US7110506B2Sep 19, 2006
Method and device for cooling and electrically insulating a high-voltage, heat-generating component such as an x-ray tube for analyzing fluid streams
X RAY OPTICAL SYS INC40 citations95
US7072439B2Jul 4, 2006
X-ray tube and method and apparatus for analyzing fluid streams using x-rays
X RAY OPTICAL SYS INC55 citations95
US7738629B2Jun 15, 2010
X-ray focusing optic having multiple layers with respective crystal orientations
X RAY OPTICAL SYS INC24 citations92
US7209545B2Apr 24, 2007
X-ray source assembly having enhanced output stability, and fluid stream analysis applications thereof
X RAY OPTICAL SYS INC29 citations92
US7035374B2Apr 25, 2006
Optical device for directing x-rays having a plurality of optical crystals
X RAY OPTICAL SYS INC42 citations92
US7023955B2Apr 4, 2006
X-ray fluorescence system with apertured mask for analyzing patterned surfaces
X RAY OPTICAL SYS INC49 citations92
US6285506B1Sep 4, 2001
Curved optical device and method of fabrication
X RAY OPTICAL SYS INC40 citations92
US7206375B2Apr 17, 2007
Method and apparatus for implement XANES analysis
X RAY OPTICAL SYS INC28 citations89
US7899154B2Mar 1, 2011
Small spot and high energy resolution XRF system for valence state determination
X RAY OPTICAL SYS INC35 citations87
US7519159B2Apr 14, 2009
Method and device for cooling and electrically insulating a high voltage, heat-generating component such as an x-ray tube for analyzing fluid streams
X RAY OPTICAL SYS INC11 citations83
US7382856B2Jun 3, 2008
X-ray source assembly having enhanced output stability, and fluid stream analysis applications thereof
X RAY OPTICAL SYS INC11 citations83
US7298817B2Nov 20, 2007
Portable and on-line arsenic analyzer for drinking water
X RAY OPTICAL SYS INC16 citations83
US7738630B2Jun 15, 2010
Highly aligned x-ray optic and source assembly for precision x-ray analysis applications
X RAY OPTICAL SYS INC19 citations82
US7991116B2Aug 2, 2011
Monochromatic x-ray micro beam for trace element mapping
X RAY OPTICAL SYS INC10 citations80
US8050382B2Nov 1, 2011
Sample module with sample stream spaced from window, for x-ray analysis system
X RAY OPTICAL SYS INC7 citations79
US9360440B2Jun 7, 2016
Non-homogeneous sample handling apparatus and X-ray analyzer applications thereof
X RAY OPTICAL SYS INC3 citations72
US10256002B2Apr 9, 2019
Support structure and highly aligned monochromatic X-ray optics for X-ray analysis engines and analyzers
X RAY OPTICAL SYS INC4 citations71
US10705033B2Jul 7, 2020
Sample handling apparatus for pressurized fluids and X-ray analyzer applications thereof
X RAY OPTICAL SYS INC3 citations67
US10317350B2Jun 11, 2019
Active, variable sample concentration method and apparatus for sub-ppb measurements and exemplary X-ray analysis applications thereof
X RAY OPTICAL SYS INC3 citations64
US9343193B2May 17, 2016
XRF system having multiple excitation energy bands in highly aligned package
X RAY OPTICAL SYS INC2 citations61
US9048001B2Jun 2, 2015
XRF system having multiple excitation energy bands in highly aligned package
X RAY OPTICAL SYS INC1 citations61
US12247934B2Mar 11, 2025
Polarized, energy dispersive x-ray fluorescence system and method
X RAY OPTICAL SYS INC0 citations39