Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4690042 | Computer environment filter apparatus having wing with internal baffles | Matthew H. Bertelsen | 1987-09-01 |
| 4628566 | Filtering system for paper handling machines | — | 1986-12-16 |