Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6187917 | Process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet | Richard Eugene Mayer, Theodore J. Jenczewski | 2001-02-13 |
| 5990306 | Process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet | Richard Eugene Mayer, Theodore J. Jenczewski | 1999-11-23 |
| 5656757 | Monomer recovery from multi-component materials | Theodore J. Jenczewski, Richard Eugene Mayer | 1997-08-12 |
| 5414154 | Phenol with low levels of methylbenzofuran | Theodore J. Jenczewski, James A. Kweeder | 1995-05-09 |
| 5240568 | Removal of acetophenone from phenol purification residues | Chong H. Chan, Everett H. Hinton, Jr., Laszlo J. Balint | 1993-08-31 |
| 5064507 | Distillation process for recovery of high purity phenol | Michael S. O'Donnell | 1991-11-12 |
| 5015455 | Disulfonate process control | Laszlo J. Balint | 1991-05-14 |
| 4996036 | Abatement of NO.sub.x from hydroxylamine disulfonate process | William B. Fisher, Laszlo J. Balint | 1991-02-26 |
| 4851086 | Production of high purity phenol by steam distillation | Ali M. Khonsari, Jamin Chen, George D. Suciu, William B. Fisher | 1989-07-25 |
| 4767503 | Removal of light impurities from caprolactam by distillation with water | Joseph D. DeCaprio, William B. Fisher, Roy J. Lilley, Jr. | 1988-08-30 |
| 4722769 | Process for recovery of acetone | Chong H. Chan, Everett H. Hinton, Jr. | 1988-02-02 |
| 4692321 | Oxidation of ammonia over a mixed catalyst bed of cobalt and aluminum oxides | Leonard E. James, William B. Fisher, Joseph M. Browning | 1987-09-08 |
| 4582642 | Recovery of caprolactam from process residues | William B. Fisher, Richard Eugene Mayer, Joseph D. DeCaprio, Ronald K. Nilsen | 1986-04-15 |
| 4389339 | Process for making a cobalt oxide catalyst | Leonard E. James, William B. Fisher | 1983-06-21 |
| 4311642 | Recovery of caprolactam from nylon 6 oligomers | Webb B. Blackman, Jr., Joseph D. DeCaprio, William B. Fisher, Roy J. Lilley, Jr., John W. Wagner | 1982-01-19 |
| 4233279 | Process for the synthesis of ammonium nitrite | Laszlo J. Balint, William B. Fisher, Muhammad S. Sahli | 1980-11-11 |