Inventor
CHANG BONG-KYU
US32 patents
⚠️ This page may combine multiple inventors who share the name “CHANG BONG-KYU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHEVRON USA INC
19 patentsUS7732364B2Jun 8, 2010
Process for ionic liquid catalyst regeneration
CHEVRON USA INC29 citations92
US10301233B2May 28, 2019
Natural gas liquid upgrading by ionic liquid catalyzed alkylation
CHEVRON USA INC8 citations80
US11643373B1May 9, 2023
Integrated reactor for ionic liquid alkylation using bio-ethylene feedstock
CHEVRON USA INC3 citations73
US7955999B2Jun 7, 2011
System and apparatus for ionic liquid catalyst regeneration
CHEVRON USA INC6 citations73
US11639320B1May 2, 2023
Process for the production of renewable distillate-range hydrocarbons
CHEVRON USA INC2 citations71
US11621059B2Apr 4, 2023
Method for on-line prediction of conjunct polymer concentration in a hydrocarbon conversion process
CHEVRON USA INC3 citations71
US9545614B2Jan 17, 2017
Pneumatically agitated ionic liquid alkylation using vaporization to remove reaction heat
CHEVRON USA INC5 citations71
US10173194B2Jan 8, 2019
Systems for ionic liquid catalyzed alkylation based on a modular reactor
CHEVRON USA INC2 citations70
US12258302B2Mar 25, 2025
Ionic liquid alkylation of isobutane with ethylene to produce alkylate
CHEVRON USA INC0 citations62
US11964926B2Apr 23, 2024
Ionic liquid alkylation of isobutane with ethylene to produce alkylate
CHEVRON USA INC0 citations62
US11643374B1May 9, 2023
Ionic liquid alkylation of isobutane with bio-ethylene to produce alkylate
CHEVRON USA INC0 citations62
US12281054B2Apr 22, 2025
Process for the production of renewable distillate-range hydrocarbons
CHEVRON USA INC0 citations61
US12043589B2Jul 23, 2024
Process for the production of renewable distillate-range hydrocarbons
CHEVRON USA INC0 citations61
US11135575B2Oct 5, 2021
Apparatus for regeneration of acidic ionic liquid without addition of a hydrogenation catalyst
CHEVRON USA INC0 citations60
US9956552B2May 1, 2018
Regeneration of acidic ionic liquid without addition of a hydrogenation catalyst
CHEVRON USA INC1 citations49
US10633304B2Apr 28, 2020
Natural gas liquid upgrading by ionic liquid catalyzed alkylation
CHEVRON USA INC0 citations48
US10167432B2Jan 1, 2019
Processes to make alkylate gasoline by sulfur-contaminated ionic liquid catalyzed alkylation
CHEVRON USA INC0 citations42
US10059639B2Aug 28, 2018
Alkylation of refinery pentenes with isobutane
CHEVRON USA INC0 citations42
US9796642B2Oct 24, 2017
Pneumatically agitated ionic liquid alkylation using vaporization to remove reaction heat
CHEVRON USA INC0 citations39
TIMKEN HYE KYUNG CHO
5 patentsUS9938473B2Apr 10, 2018
Ethylene oligomerization process for making hydrocarbon liquids
TIMKEN HYE KYUNG CHO7 citations78
US9302199B2Apr 5, 2016
Alkylation process with recycle of hydrogen and recovery of hydrogen chloride
TIMKEN HYE KYUNG CHO2 citations62
US9233316B2Jan 12, 2016
Hydrogen recycle and hydrogen chloride recovery in an alkylation process
TIMKEN HYE KYUNG CHO2 citations60
US9302200B2Apr 5, 2016
Alkylation process unit with recyle of hydrogen and recovery of hydrogen chloride
TIMKEN HYE KYUNG CHO0 citations52
US10683460B2Jun 16, 2020
Ethylene oligomerization process for making hydrocarbon liquids
TIMKEN HYE KYUNG CHO0 citations46
LUO HUPING
4 patentsUS8067656B2Nov 29, 2011
Liquid-liquid separation process via coalescers
LUO HUPING39 citations92
US9388093B2Jul 12, 2016
Nozzle design for ionic liquid catalyzed alkylation
LUO HUPING14 citations83
US8821805B2Sep 2, 2014
Process unit with improved reactant feeding for the production of alkylate gasoline
LUO HUPING5 citations72
US8088338B2Jan 3, 2012
System and apparatus for ionic liquid catalyst regeneration
LUO HUPING3 citations62