Inventor
BUTWELL KENNETH F
US12 patents
⚠️ This page may combine multiple inventors who share the name “BUTWELL KENNETH F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ENGELHARD CORP
7 patentsUS6497750B2Dec 24, 2002
Pressure swing adsorption process
ENGELHARD CORP106 citations98
US6444012B1Sep 3, 2002
Selective removal of nitrogen from natural gas by pressure swing adsorption
ENGELHARD CORP116 citations97
US6197092B1Mar 6, 2001
Selective removal of nitrogen from natural gas by pressure swing adsorption
ENGELHARD CORP56 citations96
US6521020B2Feb 18, 2003
Claus feed gas hydrocarbon removal
ENGELHARD CORP17 citations92
US6508863B1Jan 21, 2003
Claus feed gas hydrocarbon removal
ENGELHARD CORP20 citations92
US6387159B1May 14, 2002
Claus feed gas hydrocarbon removal
ENGELHARD CORP25 citations92
US6315817B1Nov 13, 2001
Selective removal of nitrogen from natural gas by pressure swing adsorption
ENGELHARD CORP38 citations92
UNION CARBIDE CORP
5 patentsUS4184855AJan 22, 1980
Process for CO2 removal
UNION CARBIDE CORP40 citations90
US4705673ANov 10, 1987
Mixed solvent system for treating acidic gas
UNION CARBIDE CORP33 citations84
US4401560AAug 30, 1983
Process for the separation of aromatic hydrocarbons from petroleum fractions with heat recovery
UNION CARBIDE CORP9 citations73
US4297329AOct 27, 1981
Vapor-liquid contacting system
UNION CARBIDE CORP16 citations69
US4278621AJul 14, 1981
Vapor-liquid contacting system
UNION CARBIDE CORP17 citations69