Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4455198 | Extraction and/or extractive distillation of ethanol from aqueous solutions | David K. Preston, Stephen E. Belsky | 1984-06-19 |
| 4428798 | Extraction and/or extractive distillation of low molecular weight alcohols from aqueous solutions | Stephen E. Belsky, Preston D. Krautheim | 1984-01-31 |
| 4415409 | Process for the separation of high boiling oxygenated compounds from mixtures with phenol and/or cresol | Stephen E. Belsky | 1983-11-15 |
| 4272326 | Enhanced distillation of cyclohexanol from phenol with additional cyclohexanone feed | Richard R. Hertzog | 1981-06-09 |
| 4213832 | Distillation for separating dialkylketones from lower chlorohydrocarbons | Nirmal K. Khanna, Robert F. Raczynski | 1980-07-22 |
| 4187152 | Extractive distillation for separating ketones and/or alcohols from phenol and/or cresol | David W. Roth | 1980-02-05 |