Inventor
VASCONCELLOS STEPHEN R
US29 patents
⚠️ This page may combine multiple inventors who share the name “VASCONCELLOS STEPHEN R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BETZ LABORATORIES
9 patentsUS5234604AAug 10, 1993
Water soluble block copolymers and methods of use therof
BETZ LABORATORIES61 citations96
US5292441AMar 8, 1994
Quaternized polyvinylamine water clarification agents
BETZ LABORATORIES41 citations92
US5182331AJan 26, 1993
Water soluble block copolymers and methods of use thereof
BETZ LABORATORIES29 citations92
US5169536ADec 8, 1992
Detoxification agents for surfactant based biocides
BETZ LABORATORIES20 citations80
US5368744ANov 29, 1994
Methods for treating wastewater
BETZ LABORATORIES14 citations74
US5183576AFeb 2, 1993
Cationic polymers for sludge dewatering
BETZ LABORATORIES16 citations74
US5100561AMar 31, 1992
Cationic polymers for sludge dewatering
BETZ LABORATORIES14 citations74
US5183575AFeb 2, 1993
Methods for the flocculation of coal fines and insoluble metals in coal mine waters
BETZ LABORATORIES10 citations64
US5486296AJan 23, 1996
Detoxification for quaternary ammonium compounds with lignosulfonates
BETZ LABORATORIES5 citations59
TEXACO INC
7 patentsUS4708819ANov 24, 1987
Reduction of vanadium in recycle petroleum coke
TEXACO INC8 citations73
US4657702AApr 14, 1987
Partial oxidation of petroleum coke
TEXACO INC13 citations73
US4623359ANov 18, 1986
Aqueous slurries of solid carbonaceous fuel
TEXACO INC11 citations73
US4681700AJul 21, 1987
Partial oxidation of upgraded petroleum coke
TEXACO INC8 citations72
US4525280AJun 25, 1985
Process for separating a water dispersion of ash, slag and char particulate matter
TEXACO INC12 citations68
US4575380AMar 11, 1986
Formation of disperse-slurry of H-coal residue
TEXACO INC5 citations62
US4575381AMar 11, 1986
Formation of disperse-slurry of coal liquefaction residue
TEXACO INC4 citations62
GE BETZ INC
3 patentsUS6666975B1Dec 23, 2003
Method of reducing hydrogen sulfide odor emissions from an aqueous medium
GE BETZ INC29 citations92
US6887935B2May 3, 2005
Modified polymeric flocculants with improved performance characteristics
GE BETZ INC3 citations62
US6743421B2Jun 1, 2004
Method for odor control
GE BETZ INC5 citations54
BETZDEARBORN INC
3 patentsGEN ELECTRIC
3 patentsUS7943048B2May 17, 2011
Methods for recovering tallow from wastewater
GEN ELECTRIC3 citations60
US7722841B2May 25, 2010
Polymeric chelant and coagulant to treat metal-containing wastewater
GEN ELECTRIC5 citations57
US7291273B2Nov 6, 2007
Methods for removing metals from plating operation
GEN ELECTRIC0 citations37