Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5171430 | Plastic filter | Donald W. Beach, Lawrence B. Feldhaus, Charles L. Matheson, Monroe L. Newton, Steve F. Robbins +1 more | 1992-12-15 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5171430 | Plastic filter | Donald W. Beach, Lawrence B. Feldhaus, Charles L. Matheson, Monroe L. Newton, Steve F. Robbins +1 more | 1992-12-15 |