Inventor
SAPPEY ANDREW D
US26 patents
⚠️ This page may combine multiple inventors who share the name “SAPPEY ANDREW D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ZOLO TECHNOLOGIES INC
11 patentsUS6415080B1Jul 2, 2002
Echelle grating dense wavelength division multiplexer/demultiplexer
ZOLO TECHNOLOGIES INC37 citations94
US6304692B1Oct 16, 2001
Echelle grating dense wavelength division multiplexer/demultiplexer with two dimensional single channel array
ZOLO TECHNOLOGIES INC37 citations94
US7248755B2Jul 24, 2007
Method and apparatus for the monitoring and control of combustion
ZOLO TECHNOLOGIES INC52 citations93
US7469092B2Dec 23, 2008
Method and apparatus for the monitoring and control of a process
ZOLO TECHNOLOGIES INC22 citations92
US6421481B1Jul 16, 2002
Apparatus and method for producing a flat-topped filter response for diffraction grating (De) multiplexer
ZOLO TECHNOLOGIES INC35 citations92
US6647182B2Nov 11, 2003
Echelle grating dense wavelength division multiplexer/demultiplexer
ZOLO TECHNOLOGIES INC13 citations90
US6400509B1Jun 4, 2002
Apparatus and method for the reduction of polarization sensitivity in diffraction gratings used in fiber optic communications devices
ZOLO TECHNOLOGIES INC42 citations87
USRE40271EApr 29, 2008
Echelle grating dense wavelength division multiplexer/demultiplexer
ZOLO TECHNOLOGIES INC9 citations82
US7729566B2Jun 1, 2010
Method for the monitoring and control of a process
ZOLO TECHNOLOGIES INC7 citations73
US7389027B2Jun 17, 2008
Method and apparatus for the monitoring and control of a process
ZOLO TECHNOLOGIES INC5 citations73
US9366621B2Jun 14, 2016
In-furnace retro-reflectors with steerable tunable diode laser absorption spectrometer
ZOLO TECHNOLOGIES INC4 citations64
JOHN ZINK CO LLC
3 patentsUS10352852B2Jul 16, 2019
TDLAS architecture for widely spaced wavelengths
JOHN ZINK CO LLC5 citations83
US10371378B2Aug 6, 2019
Method and apparatus for monitoring port blockage for TDLAS measurements in harsh environments
JOHN ZINK CO LLC1 citations59
US10738997B2Aug 11, 2020
Method and apparatus for verification of TDLAS system operation
JOHN ZINK CO LLC0 citations31
ONPOINT TECH LLC
3 patentsUS11513069B2Nov 29, 2022
TDLAS architecture for widely spaced wavelengths
ONPOINT TECH LLC0 citations60
US10948184B2Mar 16, 2021
Method and apparatus for monitoring port blockage for TDLAS measurements in harsh environments
ONPOINT TECH LLC1 citations58
US10830698B2Nov 10, 2020
TDLAS architecture for widely spaced wavelength
ONPOINT TECH LLC0 citations50