Inventor
SOFRANKO JOHN A
US78 patents
⚠️ This page may combine multiple inventors who share the name “SOFRANKO JOHN A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ATLANTIC RICHFIELD CO
37 patentsUS4777313AOct 11, 1988
Boron-promoted reducible metal oxides and methods of their use
ATLANTIC RICHFIELD CO90 citations96
US4567307AJan 28, 1986
Two-step methane conversion process
ATLANTIC RICHFIELD CO58 citations96
US4554395ANov 19, 1985
Methane conversion
ATLANTIC RICHFIELD CO69 citations96
US4523049AJun 11, 1985
Methane conversion process
ATLANTIC RICHFIELD CO96 citations96
US4443649AApr 17, 1984
Methane conversion
ATLANTIC RICHFIELD CO57 citations96
US4443645AApr 17, 1984
Methane conversion
ATLANTIC RICHFIELD CO53 citations96
US4443648AApr 17, 1984
Methane conversion
ATLANTIC RICHFIELD CO52 citations96
US4629718ADec 16, 1986
Alkali promoted manganese oxide compositions containing silica and/or alkaline earth oxides
ATLANTIC RICHFIELD CO89 citations95
US4634800AJan 6, 1987
Methane conversion process
ATLANTIC RICHFIELD CO53 citations94
US4912081AMar 27, 1990
Boron-promoted reducible metal oxides
ATLANTIC RICHFIELD CO23 citations93
US4499322AFeb 12, 1985
Methane conversion
ATLANTIC RICHFIELD CO40 citations93
US4444984AApr 24, 1984
Methane conversion
ATLANTIC RICHFIELD CO39 citations93
US4443644AApr 17, 1984
Methane conversion
ATLANTIC RICHFIELD CO27 citations93
US4443647AApr 17, 1984
Methane conversion
ATLANTIC RICHFIELD CO34 citations93
US4670619AJun 2, 1987
Methane conversion process
ATLANTIC RICHFIELD CO28 citations91
US4495374AJan 22, 1985
Methane conversion
ATLANTIC RICHFIELD CO31 citations87
US4769508ASep 6, 1988
Alkali promoted manganese oxide compositions containing titanium
ATLANTIC RICHFIELD CO24 citations82
US4654459AMar 31, 1987
Alkali promoted manganese oxide compositions containing barium carbonate
ATLANTIC RICHFIELD CO19 citations82
US4547607AOct 15, 1985
Methane conversion process
ATLANTIC RICHFIELD CO21 citations82
US4547611AOct 15, 1985
Methane conversion
ATLANTIC RICHFIELD CO21 citations82
US4544784AOct 1, 1985
Methane conversion
ATLANTIC RICHFIELD CO21 citations82
US4523050AJun 11, 1985
Methane conversion process
ATLANTIC RICHFIELD CO26 citations82
US4447638AMay 8, 1984
Preparation of dialkyl oxalates by the oxidative carbonylation of alcohols with a heterogeneous Pd-V-P-Ti containing catalyst system
ATLANTIC RICHFIELD CO22 citations82
US4443646AApr 17, 1984
Methane conversion
ATLANTIC RICHFIELD CO26 citations82
US4544785AOct 1, 1985
Methane conversion
ATLANTIC RICHFIELD CO26 citations81
US4879427ANov 7, 1989
Methane conversion
ATLANTIC RICHFIELD CO10 citations74
US4861936AAug 29, 1989
Boron-promoted reducible metal oxides and methods of their use
ATLANTIC RICHFIELD CO14 citations74
US4795842AJan 3, 1989
Methane conversion process
ATLANTIC RICHFIELD CO11 citations74
US4737595AApr 12, 1988
Hydrocarbon dehydrogenation
ATLANTIC RICHFIELD CO16 citations74
US4665260AMay 12, 1987
Methane conversion
ATLANTIC RICHFIELD CO7 citations74
US4650781AMar 17, 1987
Alkali promoted manganese oxide compositions containing zirconium
ATLANTIC RICHFIELD CO9 citations74
US4634802AJan 6, 1987
Hydrocarbon dehydrogenation
ATLANTIC RICHFIELD CO9 citations74
US4560821ADec 24, 1985
Methane conversion
ATLANTIC RICHFIELD CO15 citations74
US4517398AMay 14, 1985
Hydroxylated magnesia support
ATLANTIC RICHFIELD CO6 citations74
US4454342AJun 12, 1984
Preparation of dialkyl oxalates using a heterogeneous Pd-V-P catalyst for the oxidative carbonylation of alcohols
ATLANTIC RICHFIELD CO11 citations74
US4451666AMay 29, 1984
Synthesis of oxalate esters by the oxidative carbonylation of alcohols with a heterogeneous manganese promoted Pd-V-P catalyst
ATLANTIC RICHFIELD CO10 citations74
US4447639AMay 8, 1984
Oxidative carbonylation of alcohols to dialkyl oxalates using a heterogeneous iron promoted Pd-V-P catalyst
ATLANTIC RICHFIELD CO8 citations74
ARCO CHEM TECH
9 patentsUS5171921ADec 15, 1992
Production of olefins
ARCO CHEM TECH173 citations99
US5026936AJun 25, 1991
Enhanced production of propylene from higher hydrocarbons
ARCO CHEM TECH163 citations99
US5026935AJun 25, 1991
Enhanced production of ethylene from higher hydrocarbons
ARCO CHEM TECH156 citations99
US5192809AMar 9, 1993
Process for reclaiming a thermoset polymer
ARCO CHEM TECH33 citations92
US5198590AMar 30, 1993
Hydrocarbon conversion
ARCO CHEM TECH41 citations91
US5258049ANov 2, 1993
Diesel fuel composition
ARCO CHEM TECH11 citations74
US5210336AMay 11, 1993
Oxidation of olefin to glycol
ARCO CHEM TECH7 citations74
US5146034ASep 8, 1992
Conversion of paraffins to olefins
ARCO CHEM TECH16 citations74
US5091163AFeb 25, 1992
Partially protonated sodium-ZSM-5 method of making
ARCO CHEM TECH8 citations74
BIO2ELECTRIC LLC
3 patentsUS10138182B2Nov 27, 2018
Oxygen transfer agents for the oxidative dehydrogenation of hydrocarbons and systems and processes using the same
BIO2ELECTRIC LLC17 citations81
US11192092B1Dec 7, 2021
Stabilized oxyborates and their use for oxidative conversion of hydrocarbons
BIO2ELECTRIC LLC2 citations73
US11104625B1Aug 31, 2021
Oxidative conversion of hydrocarbons using sulfur oxides as oxygen carriers
BIO2ELECTRIC LLC3 citations73
ECOCATALYTIC INC
1 patentShowing the top 50 of 78 patents by PatentIndex Score.