Inventor
CHANG RAMSAY
US27 patents
⚠️ This page may combine multiple inventors who share the name “CHANG RAMSAY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ELECTRIC POWER RES INST
20 patentsUS7141091B2Nov 28, 2006
Method and apparatus for removing particulate and vapor phase contaminants from a gas stream
ELECTRIC POWER RES INST74 citations98
US6558454B1May 6, 2003
Method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents
ELECTRIC POWER RES INST222 citations98
US6136072AOct 24, 2000
Apparatus and method for the removal of contaminants in gases
ELECTRIC POWER RES INST106 citations98
US5158580AOct 27, 1992
Compact hybrid particulate collector (COHPAC)
ELECTRIC POWER RES INST117 citations98
US5854173ADec 29, 1998
Flake shaped sorbent particle for removing vapor phase contaminants from a gas stream and method for manufacturing same
ELECTRIC POWER RES INST109 citations97
US6818043B1Nov 16, 2004
Vapor-phase contaminant removal by injection of fine sorbent slurries
ELECTRIC POWER RES INST197 citations96
US6712878B2Mar 30, 2004
Method and apparatus for renewable mercury sorption
ELECTRIC POWER RES INST64 citations96
US6695894B2Feb 24, 2004
Method and apparatus for removing vapor phase contaminants from a flue gas stream
ELECTRIC POWER RES INST54 citations96
US6451094B1Sep 17, 2002
Apparatus and method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents
ELECTRIC POWER RES INST106 citations96
US5948143ASep 7, 1999
Apparatus and method for the removal of contaminants in gases
ELECTRIC POWER RES INST65 citations96
US5024681AJun 18, 1991
Compact hybrid particulate collector
ELECTRIC POWER RES INST84 citations96
US5827352AOct 27, 1998
Method for removing mercury from a gas stream and apparatus for same
ELECTRIC POWER RES INST202 citations94
US6905534B2Jun 14, 2005
Method and apparatus for removing vapor phase contaminants from a flue gas stream
ELECTRIC POWER RES INST32 citations93
US6267940B1Jul 31, 2001
Method for reducing NOx with an activated catalyst
ELECTRIC POWER RES INST25 citations93
US6514315B1Feb 4, 2003
Apparatus and method for collecting flue gas particulate with high permeability filter bags
ELECTRIC POWER RES INST38 citations92
US7731781B2Jun 8, 2010
Method and apparatus for the enhanced removal of aerosols and vapor phase contaminants from a gas stream
ELECTRIC POWER RES INST21 citations90
US6468489B1Oct 22, 2002
Apparatus and method for decreasing contaminants present in a gas stream
ELECTRIC POWER RES INST29 citations90
US8029600B2Oct 4, 2011
Sorbent filter for the removal of vapor phase contaminants
ELECTRIC POWER RES INST12 citations84
US7708803B2May 4, 2010
Method and apparatus for the enhanced removal of aerosols from a gas stream
ELECTRIC POWER RES INST9 citations82
US9144766B2Sep 29, 2015
Method and apparatus for rapid adsorption-desorption CO2 capture
ELECTRIC POWER RES INST1 citations48
CHANG RAMSAY
4 patentsUS8911536B2Dec 16, 2014
Method and apparatus for rapid adsorption-desorption CO2 capture
CHANG RAMSAY5 citations79
US9555368B2Jan 31, 2017
Chemically-enhanced sorbent activation process and method of using same
CHANG RAMSAY1 citations48
US9302218B2Apr 5, 2016
Chemically-enhanced sorbent activation process and methods for using same
CHANG RAMSAY1 citations48
US8999278B2Apr 7, 2015
Method and apparatus for on-site production of lime and sorbents for use in removal of gaseous pollutants
CHANG RAMSAY1 citations48