Inventor

Liehpao O. Farng

Inventor

Lawrenceville, NJ, US

Overview

1987–2020

Patent span

Chemistry

Primary field (CPC C)

Patents· 67 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C10Mprimary

C10MLubricating compositions35%

C10NIndexing scheme associated with subclass c10m relating to lubricating compositions24%

C10LFuels not otherwise provided for16%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium8%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%

C07CAcyclic or carbocyclic compounds3%

C08LCompositions of macromolecular compounds3%

C07DHeterocyclic compounds3%

F02BInternal-combustion piston engines1%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds1%

PatentTitleYear

10,876,063Syndiotactic propylene polymers and lubricating oils comprising the same2020 10,017,708Lubricant and fuel dispersants and methods of preparation thereof2018 9,416,206'Lubricating oil compositions and method for making them'2016 9,315,761'Lubricant and fuel dispersants and methods of preparation thereof'2016 9,260,552'Process to produce polymers from pyridyldiamido transition metal complexes and use thereof'2016 9,175,240'Ethylene-based copolymers, lubricating oil compositions containing the same, and methods for making them'2015 9,018,149'Method for reducing one or more of deposits and friction of a lubricating oil'2015 9,006,161'Polymeric compositions useful as rheology modifiers and methods for making such compositions'2015 8,999,907'Ethylene based copolymer compositions as viscosity modifiers and methods for making them'2015 8,623,796'Oil-in-oil compositions and methods of making'2014 8,569,216'Lubricant formulation with high oxidation performance'2013 8,507,417'Organomolybdenum-boron additives'2013 8,389,452'Polymeric compositions useful as rheology modifiers and methods for making such compositions'2013 8,378,048'Copolymers, compositions thereof, and methods for making them'2013 8,309,501'Ethylene-based copolymers, lubricating oil compositions containing the same, and methods for making them'2012 8,227,392'Base stocks and lubricant blends containing poly-alpha olefins'2012 7,863,227'High performance lubricant containing high molecular weight aromatic amine antioxidant and low boron content dispersant'2011 7,684,933'Automated intelligent system for lubricant manufacture optimization'2010 7,598,212'Lubricating composition suitable for diesel engines'2009 7,419,940'Borated-epoxidized polybutenes as low-ash anti-wear additives for lubricants'2008 7,176,168'Lubricant containing a synergistic combination of rust inhibitors, antiwear agents, and a phenothiazine antioxidant'2007 6,730,638'Low ash, low phosphorus and low sulfur engine oils for internal combustion engines'2004 5,853,435'Polymeric amine-heterocyclic reaction products as fuel and lubricant antiwear, detergency and cleanliness additives'1998 5,763,370'Friction-reducing and antiwear/EP additives for lubricants'1998 5,681,798'Load-carrying additives based on organo-phosphites and amine phosphates'1997 5,578,556'Triazole-maleate adducts as metal passivators and antiwear additives'1996 5,538,652'Dimercaptothiadiazole-mercaptan coupled compounds as multifunctional additives for lubricants and fuels'1996 5,529,706'Lubricant compositions comprising tolyltriazole-derived tri/tetra esters as additives for distillate fuels'1996 5,516,341'Fuel composition comprising triazole-derived acid-esters or ester-amide-amine salts as antiwear additives'1996 5,514,290'Hydroxyaryl/phosphonate-derived aminoalkanol borates as multifunctional antiwear/EP load-carrying additives'1996 5,514,189'Dithiocarbamate-derived ethers as multifunctional additives'1996 5,492,544'Lubricant compositions comprising tolyltriazole-derived tri/tetra esters as additives for distillate fuels'1996 5,437,694'Phosphorodithioate-derived pyrrolidinone adducts as multifunctional antiwear/antioxidant additives'1995 5,407,592'Multifunctional additives'1995 5,370,806'Borated dihydrocarbyl dithiocarbamate lubricant additives and composition thereof'1994 5,328,625'Lubricant compositions comprising triazole-derived acid-esters or ester-amide-amine salts as antiwear additives'1994 5,324,441'Phosphorodithioate-derived pyrrolidinone adducts as multifunctional antiwear/antioxidant additives'1994 5,312,461'Dihydrocarbyl substituted phenylenediamine-derived phenolic products as antioxidants'1994 5,288,418'Amine-coupled hindered phenols and phosphites as multifunctional antioxidant/antiwear additives'1994 5,282,988'Lubricant additives'1994 5,207,939'Dihydrocarbyl substituted phenylenediamine-derived phenolic products as antioxidants'1993 5,199,960'Sulfur coupled hydrocarbyl derived mercaptobenzothiazole adducts as multifunctional antiwear additives and compositions containing same'1993 5,171,465'Phenylenediamine-derived phosphonates as multifunctional additives for lubricants'1992 5,169,547'Amine-containing hindered phenolic antioxidant lubricant additives and compositions thereof'1992 5,137,649'Mixed alcohol/dimercaptothiadiazole-derived hydroxy borates as antioxidant/antiwear multifunctional additives'1992 5,126,063'Borated hydroxyalkyl esters of dithiocarbamic acids as multifunctional additives for lubricant compositions'1992 5,084,069'Multifunctional additives for lubricants and fuels'1992 5,073,279'Sulfur coupled hydrocarbyl derived mercaptobenzothiazole adducts as multifunctional antiwear additives and compositions containing same'1991 5,057,235'Sulfur-phosphorus adducts of chromium catalyzed polyalphaolefins'1991 5,037,567'Phosphorus-sulfur olefinic derivatives as multifunctional lubricants and multifunctional additives for lubricants'1991 5,019,282'Organic ester, amide or amine salts of phosphorodithioate substitute carboxylic anhydrides as multifunctional additives'1991 5,006,270'Mixed resorcinol-hydroxyester borates as antioxidants'1991 5,002,674'Multifunctional lubricant additives and compositions thereof'1991 4,985,157'Mixed alkoxylated alcohol-hydroquinone/resorcinol borates-antioxidants'1991 4,966,721'N-N\'-dihydrocarbyl substituted phenylene diamine-derived condensation products as antioxidants and lubricant compositions'1990 4,956,108'Copper salts of thiodipropionic acid derivatives as antioxidant additives process of making the same and fuel composition thereof'1990 4,956,105'Lubricant composition containing phenolic/phosphorodithioate borates as multifunctional additives'1990 4,919,830'Dithiocarbamate-derived phosphates as antioxidant/antiwear multifunctional additives'1990 4,908,144'Dimercaptothiadiazole-derived, organic esters, amides and amine salts as multifunctional antioxidant/antiwear additives'1990 4,906,393'Mixed phenol/dimercaptothiadiazole-derived hydroxythioether borates as antioxidant/antiwear multifunctional additives'1990 4,834,893'Substituted phosphorodithioates and their metal salts as multifunctional additives'1989 4,828,733'Copper salts of hindered phenolic carboxylates and lubricants and fuels containing same'1989 4,828,740'Mixed hydroquinone-hydroxyester borates as antioxidants'1989 4,820,430'Copper salts of thiodipropionic acid derivatives as antioxidant additives and lubricant compositions thereof'1989 4,784,780'Lubricant additive comprising mixed hydroxyester or diol/phosphorodithioate-derived borates'1988 4,770,799'Copper salts of hindered phenol substituted succinic anhydride derivatives as antioxidant additives'1988 4,715,974'Copper salts of sulfurized fatty acids as antioxidants'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1998Patents assigned to MOBIL OIL CORP (43)· patent assignee history

1987–1998Based in Cherry Hill, NJ, US· patent location history

1988–2020Based in Lawrenceville, NJ, US· patent location history

2004–2015Patents assigned to EXXONMOBIL RES & ENG CO (11)· patent assignee history

2012–2016Patents assigned to EXXONMOBIL CHEM PATENTS INC (8)· patent assignee history

2012–2016Patents assigned to FARNG LIEHPAO OSCAR (7)· patent assignee history

2012–2016Patents assigned to DATTA SUDHIN (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MOBIL OIL CORP	43	1987–1998
EXXONMOBIL RES & ENG CO	11	2004–2015
EXXONMOBIL CHEM PATENTS INC	8	2012–2016
FARNG LIEHPAO OSCARself	7	2012–2016
DATTA SUDHIN	5	2012–2016

Locations

Location	Patents	Span
Lawrenceville, New Jersey, US	63	1988–2020
Cherry Hill, New Jersey, US	4	1987–1998