Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4767503 | Removal of light impurities from caprolactam by distillation with water | Lamberto Crescentini, William B. Fisher, Roy J. Lilley, Jr. | 1988-08-30 |
| 4582642 | Recovery of caprolactam from process residues | Lamberto Crescentini, William B. Fisher, Richard Eugene Mayer, Ronald K. Nilsen | 1986-04-15 |
| 4311642 | Recovery of caprolactam from nylon 6 oligomers | Lamberto Crescentini, Webb B. Blackman, Jr., William B. Fisher, Roy J. Lilley, Jr., John W. Wagner | 1982-01-19 |