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| US4057489 | 29 Dic 1976 | 8 Nov 1977 | Gulf Research & Development Company | Process for producing a transformer oil having lower pour point and improved oxidation stability |
| US4113603 | 19 Oct 1977 | 12 Sep 1978 | The Lummus Company | Two-stage hydrotreating of pyrolysis gasoline to remove mercaptan sulfur and dienes |
| US4169783 | 27 Jun 1977 | 2 Oct 1979 | UOP Inc. | Hydrocarbon conversion catalytic composite |
| US4225418 | 7 Jun 1979 | 30 Sep 1980 | UOP Inc. | Hydroprocessing of hydrocarbons |
| US4294687 | 26 Dic 1979 | 13 Oct 1981 | Atlantic Richfield Company | Lubricating oil process |
| US4518485 | 2 Dic 1983 | 21 May 1985 | Mobil Oil Corporation | Hydrotreating/isomerization process to produce low pour point distillate fuels and lubricating oil stocks |
| US4758544 | 17 Jul 1985 | 19 Jul 1988 | Chevron Research Company | Catalyst composition and hydroprocessing of oils using same |
| US4801373 | 18 Mar 1986 | 31 Ene 1989 | Exxon Research and Engineering Company | Process oil manufacturing process |
| US6103101 | 9 Jun 1997 | 15 Ago 2000 | Petroleo Brasileiro S.A.-Petrobras | Process for producing lube base oils of high viscosity index and diesel oil of high cetaned number |
| US8231778 | 31 Dic 2008 | 31 Jul 2012 | UOP LLC | Hydrocracking processes yielding a hydroisomerized product for lube base stocks |
