Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5190619 | Separation of 3-methyl-2-butanone from formic acid by extractive distillation with DMSO | Lloyd Berg | 1993-03-02 |
| 5019217 | Separation of m-xylene from o-xylene by extractive distillation using esters | Lloyd Berg | 1991-05-28 |
| 4994151 | Separation of 4-methyl-2-pentanone from formic acid by extractive distillation with dimethylamides | Lloyd Berg | 1991-02-19 |
| 4957595 | Separation of 3-methyl-2-butanone from formic acid by extractive distillation with sulfolane | Lloyd Berg | 1990-09-18 |
| 4948471 | Separation of 4-methyl-2-pentanone from formic or acetic acid by extractive distillation with sulfolane | Lloyd Berg | 1990-08-14 |