Inventor
HART WALTER D
US4 patents
Patents
4 patentsUS4545891AOct 8, 1985
Extraction and upgrading of fossil fuels using fused caustic and acid solutions
TRW INC21 citations79
US5085764AFeb 4, 1992
Process for upgrading coal
TRW INC17 citations67
US5059307AOct 22, 1991
Process for upgrading coal
TRW INC15 citations65
US4426281AJan 17, 1984
Float/sink treatment of crushed coal in solutions of monosaccharides and disaccharides
TRW INC3 citations60