Inventor
SUDHAKAR CHAKKA
US25 patents
⚠️ This page may combine multiple inventors who share the name “SUDHAKAR CHAKKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TEXACO INC
23 patentsUS5529968AJun 25, 1996
Hydrodearomatization of hydrocarbon oils using novel "phophorus treated carbon" supported metal sulfide catalysts
TEXACO INC105 citations96
US5928501AJul 27, 1999
Process for upgrading a hydrocarbon oil
TEXACO INC146 citations95
US6547957B1Apr 15, 2003
Process for upgrading a hydrocarbon oil
TEXACO INC242 citations93
US5817229AOct 6, 1998
Catalytic hydrocarbon upgrading process requiring no external hydrogen supply
TEXACO INC64 citations93
US5624547AApr 29, 1997
Process for pretreatment of hydrocarbon oil prior to hydrocracking and fluid catalytic cracking
TEXACO INC74 citations93
US5851382ADec 22, 1998
Selective hydrodesulfurization of cracked naphtha using hydrotalcite-supported catalysts
TEXACO INC45 citations92
US5846406ADec 8, 1998
Selective hydrodesulfurization of cracked naphtha using novel manganese oxide octahedral molecular sieve supported catalysts
TEXACO INC42 citations92
US5770046AJun 23, 1998
Selective hydrodesulfurization of cracked naphtha using novel catalysts
TEXACO INC38 citations92
US5676822AOct 14, 1997
Process for hydrodearomatization of hydrocarbon oils using carbon supported metal sulfide catalysts promoted by zinc
TEXACO INC28 citations92
US5525211AJun 11, 1996
Selective hydrodesulfurization of naphtha using selectively poisoned hydroprocessing catalyst
TEXACO INC76 citations92
US5423975AJun 13, 1995
Selective hydrodesulfurization of naphtha using spent resid catalyst
TEXACO INC20 citations92
US5286373AFeb 15, 1994
Selective hydrodesulfurization of naphtha using deactivated hydrotreating catalyst
TEXACO INC29 citations92
US6162351ADec 19, 2000
Hydrodenitrogenation of hydrocarbons utilizing a carbon-supported catalyst
TEXACO INC26 citations90
US5538930AJul 23, 1996
Hydrotreating of cracked naphtha
TEXACO INC20 citations90
US5837640ANov 17, 1998
Carbon-supported hydrodearomatization catalyst
TEXACO INC32 citations89
US5435907AJul 25, 1995
Hydrodearomatization of middle distillate hydrocarbons
TEXACO INC21 citations89
US5462651AOct 31, 1995
Hydrodearomatization of hydrocarbon oils using novel "phosphorus treated carbon" supported metal sulfide catalysts
TEXACO INC19 citations81
US5556824ASep 17, 1996
Hydrodearomatization of hydrocarbons
TEXACO INC8 citations73
US5500401AMar 19, 1996
Method for selective hydrodenitrogenation of raw oils
TEXACO INC6 citations73
US5472595ADec 5, 1995
Process for hydrodearomatization of hydrocarbon oils using carbon supported metal sulfide catalysts promoted by phosphate
TEXACO INC18 citations73
US5389241AFeb 14, 1995
Method for selective hydrodenitrogenation of raw oils
TEXACO INC6 citations73
US5651878AJul 29, 1997
Hydrodearomatization of Hydrocarbons
TEXACO INC11 citations71
US5423976AJun 13, 1995
Hydrotreating of cracked naphtha
TEXACO INC7 citations71