Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10821248 | Courier airway device | — | 2020-11-03 |
| 6520220 | System for safe and controlled filling of dispensers | John Friedrichs | 2003-02-18 |
| 6003545 | Gas flow control device for high purity, highly corrosive gas service | Sande Dukas, Kevin S. Bailey, John Friedrichs, Robert N. Cooper | 1999-12-21 |