Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6187917 | Process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet | Richard Eugene Mayer, Lamberto Crescentini | 2001-02-13 |
| 5990306 | Process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet | Richard Eugene Mayer, Lamberto Crescentini | 1999-11-23 |
| 5656757 | Monomer recovery from multi-component materials | Lamberto Crescentini, Richard Eugene Mayer | 1997-08-12 |
| 5414154 | Phenol with low levels of methylbenzofuran | Lamberto Crescentini, James A. Kweeder | 1995-05-09 |
| 5271918 | Furnace gas - sulfuric acid contact process for HF manufacture | Audie J. Patterson, Robert A. Smith | 1993-12-21 |
| 4756899 | Manufacture of high purity low arsenic anhydrous hydrogen fluoride | Robert L. Sturtevant, Thomas R. Morgan, Barry J. Boghean, Donald C. Butt | 1988-07-12 |
| 4552635 | Electrodialytic methods for removal of sulfur oxides from waste gases | William H. Skinner, II | 1985-11-12 |
| 4238305 | Electrodialytic process for the conversion of impure soda values to sodium hydroxide and carbon dioxide | Alan B. Gancy | 1980-12-09 |
| 4219396 | Electrodialytic process | Alan B. Gancy | 1980-08-26 |