Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5827118 | Clean storage unit air flow system | Roy P. Johnson | 1998-10-27 |
| 5700190 | Flowhood work station | Roy P. Johnson | 1997-12-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5827118 | Clean storage unit air flow system | Roy P. Johnson | 1998-10-27 |
| 5700190 | Flowhood work station | Roy P. Johnson | 1997-12-23 |