Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5858063 | Oxygen concentrator with beds' duty cycle control and self-test | Tuan Q. Cao, Russell F. Hart, Richard Kent Frantz, Charles B. Hager, Victor P. Crome | 1999-01-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5858063 | Oxygen concentrator with beds' duty cycle control and self-test | Tuan Q. Cao, Russell F. Hart, Richard Kent Frantz, Charles B. Hager, Victor P. Crome | 1999-01-12 |