Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128125 | Method for preparing finely divided nylon-4 complex with iodine and antiseptic preparation made therefrom | — | 1992-07-07 |
| 4888118 | Water purification process and apparatus employing nylon 4 | Carl E. Barnes | 1989-12-19 |
| 4771272 | Pendent liquid level alarm apparatus | — | 1988-09-13 |
| 4281105 | Formation of particulate polypyrrolidone | Carl E. Barnes | 1981-07-28 |
| 4269665 | Drying quaternary ammonium compounds | Carl E. Barnes | 1981-05-26 |
| 4268660 | Accelerated polymerization of 2-pyrrolidone | Carl E. Barnes | 1981-05-19 |
| 4247685 | Continuous bulk polymerization of 2-pyrrolidone | Carl E. Barnes | 1981-01-27 |
| 4247683 | Polymerization of 2-pyrrolidone with quaternary ammonium accelerator by recovering and reusing same | Carl E. Barnes | 1981-01-27 |
| 4247684 | Polymerization of 2-pyrrolidone with cesium or rubidium catalyst | Carl E. Barnes | 1981-01-27 |
| 4217442 | Polymerization of 2-pyrrolidone with alkali metal pyrrolidonates and certain quaternary ammonium salts | Carl E. Barnes | 1980-08-12 |