Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4374169 | Abrasion resistant, reinforced screen panel member | Raymond A. Koehler | 1983-02-15 |
| 4343358 | Laser slotted plastic well screen | — | 1982-08-10 |
| 4317023 | Method of making slotted well screen | — | 1982-02-23 |
| 4299283 | Strip structure for well screen | — | 1981-11-10 |