Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5154827 | Laminated microporous fluorocarbon membrane and fluorocarbon filter cartridge using same | Charles J. Ashelin | 1992-10-13 |
| 4863604 | Microporous asymmetric polyfluorocarbon membranes | Lawrence Y. Lo | 1989-09-05 |
| 4678577 | Seamless vessel for self contained filter assembly | Charles J. Ashelin | 1987-07-07 |
| 4664801 | Filter cartridge sealing composition and process therefor | — | 1987-05-12 |