Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D339635 | Personal Spirometer | Stephen G. Hauser, Richard C. Blanchard, Paul Greskovics, Warren R. Jewett, Brian R. Heidsiek | 1993-09-21 |
| 5137026 | Personal spirometer | Frederick A. Ebeling | 1992-08-11 |
| 5101327 | Dipstick locator | Warren Jewett, Timothy J. Burgess, Stephen G. Hauser, Roger Ignon | 1992-03-31 |
| 4956633 | Break light enhancer with fail safe protection | Richard Vercillo | 1990-09-11 |