Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D339635 | Personal Spirometer | Charles K. Waterson, Stephen G. Hauser, Richard C. Blanchard, Warren R. Jewett, Brian R. Heidsiek | 1993-09-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D339635 | Personal Spirometer | Charles K. Waterson, Stephen G. Hauser, Richard C. Blanchard, Warren R. Jewett, Brian R. Heidsiek | 1993-09-21 |