Won R. Song
27Patents
15h-index
17Co-inventors
78Inventor score
Filing activity: Sep 15, 1975 → Aug 29, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5017299A | Novel ethylene alpha-olefin copolymer substituted Mannich base lubricant dispersant additives | Chemistry; Metallurgy | 106 | Expired |
| US5229022A | Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives (PT-920) | Chemistry; Metallurgy | 88 | Expired |
| US5186851A | Ethylene alpha-olefin copolymer substituted mannich base lubricant dispersant additives | Chemistry; Metallurgy | 64 | Expired |
| US5266223A | Ethylene alpha-olefin polymer substituted mono-and dicarboxylic acid dispersant additives | Emerging Cross-Sectional Technologies | 49 | Expired |
| US5275747A | Derivatized ethylene alpha-olefin polymer useful as multifunctional viscosity index improver additive for oleaginous composition | Chemistry; Metallurgy | 46 | Expired |
| US5277833A | Ethylene alpha-olefin polymer substituted mono-and dicarboxylic acid lubricant dispersant additives | Emerging Cross-Sectional Technologies | 36 | Expired |
| US5366647A | Derivatized ethylene alpha-olefin polymer useful as multifunctional viscosity index improver additive for oleaginous composition (PT-796) | Chemistry; Metallurgy | 30 | Expired |
| US5345002A | Ethylene alpha-olefin copolymer substituted hydroxy aromatic compounds | Chemistry; Metallurgy | 25 | Expired |
| US5268115A | Alkyl-substituted hydroxyaromatic compounds useful as a multifunctional viscosity index improver | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5382698A | Borated ethylene alpha-olefin copolymer substituted Mannich base lubricant dispersant additives | Chemistry; Metallurgy | 20 | Expired |
| US4032700A | Process for the preparation of aminated polymers useful as additives for fuels and lubricants | Chemistry; Metallurgy | 19 | Expired |
| US5225092A | Ethylene alpha-olefin polymer substituted amine dispersant additives | Chemistry; Metallurgy | 18 | Expired |
| US5128056A | Ethylene alpha-olefin copolymer substituted amino phenol mannich base lubricant dispersant additives | Chemistry; Metallurgy | 16 | Expired |
| US5759967A | Ethylene .alpha.-olefin/diene interpolymer-substituted carboxylic acid dispersant additives | Chemistry; Metallurgy | 15 | Expired |
| US5200103A | Ethylene alpha-olefin copolymer substituted Mannich base lubricant dispsersant additives | Chemistry; Metallurgy | 15 | Expired |
| US5681799A | Ethylene alpha-olefin/diene interpolymer-substituted carboxylic acid dispersant additives | Chemistry; Metallurgy | 13 | Expired |
| US5350532A | Borated ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5435926A | Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives | Chemistry; Metallurgy | 10 | Expired |
| US4194984A | Ethylene copolymer/ethylenically unsaturated nitrogen reactant ene adducts having utility as multifunctional V. I. improvers for lubricating oils | Chemistry; Metallurgy | 9 | Expired |
| US5433757A | Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5225091A | Ethylene alpha-olefin polymer substituted thiocarboxylic acid lubricant dispersant additives | Chemistry; Metallurgy | 5 | Expired |
| US4303539A | Oil additives containing a thiocarbamyl moiety | Chemistry; Metallurgy | 5 | Expired |
| US5284595A | Borated ethylene .alpha.-olefin polymer substituted amine dispersant additives | Chemistry; Metallurgy | 5 | Expired |
| US5294234A | Fuel compositions of novel ethylene alpha-olefin polymers substituted amine dispersant additives | Chemistry; Metallurgy | 3 | Expired |
| US5433874A | Ethylene .alpha.-olefin copolymer substituted mannich base lubricant dispersant additives | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.