Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4558810 | Surgical stapler construction | Paul Mulhauser, Douglas M. Spranger, Karl D. Kirk, III | 1985-12-17 |
| D275321 | Surgical tape applicator | Bert D. Heinzelman, Douglas M. Spranger, John Kuphal | 1984-08-28 |
| 4449787 | Night vision imaging system adapted for helmet mounting | James H. Burbo, Louis P. Hartman, Douglas M. Spranger, Paul Mulhauser | 1984-05-22 |
| 4447482 | Wound closure tape and applicator therefor | Bert D. Heinzelman, Douglas M. Spranger, John Kuphal | 1984-05-08 |
| D272906 | Telephone console | Bert D. Heinzelman, Douglas M. Spranger | 1984-03-06 |
| D266255 | Aviator night vision imaging apparatus or similar article | James H. Burbo, Louis P. Hartman, Douglas M. Spranger, Paul Mulhauser | 1982-09-21 |