Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5456839 | Method of dehydrating organic oxygenates | — | 1995-10-10 |
| 5281337 | Membrane separation process | Kathleen M. Hellmuth | 1994-01-25 |
| 5206157 | Preparation of N-substituted-2-morpholone | — | 1993-04-27 |
| 5147549 | Membrane separation process | Kathleen M. Hellmuth | 1992-09-15 |
| 5143620 | Membrane separation process | Kathleen M. Hellmuth | 1992-09-01 |
| 4973733 | Method of functionalizing polymers | Phillip B. Valkovich | 1990-11-27 |
| 4973732 | Polymer containing a polyisobutylene-derived backbone | Phillip B. Valkovich | 1990-11-27 |
| 4904741 | Polymers with amino-methyl-propene-2-yl groups contaiing electron-withdrawing groups | Phillip B. Valkovich | 1990-02-27 |
| 4826768 | Polyoxyalkylene glycol conversion to monocarboxylic acid | — | 1989-05-02 |
| 4659491 | Lubricating oil containing a polymer having a functionalized backbone which contains an electron withdrawing group | Phillip B. Valkovich | 1987-04-21 |
| 4510063 | Amine-polymer dispersants in lubricating oils and a method of improving the dispersancy of a lubricating oil | Phillip B. Valkovich | 1985-04-09 |
| 4329239 | Hydrocarbyl dihydrouracil, its method of preparation and lubricating oil composition containing same | — | 1982-05-11 |
| 4303535 | Hydrocarbyl carbamidopropanamide, its method of preparation and lubricating oil composition containing same | — | 1981-12-01 |
| 4194982 | N-sulfonylated polyalkenylsuccinimide and lubricant composition | — | 1980-03-25 |