Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5791337 | Apparatus and method for ventilating and aspirating | Randall D. Block, Paul A. Schumann, Jr., James L. Sorenson | 1998-08-11 |
| 5598840 | Apparatus and method for ventilation and aspiration | Neal Iund, Francine B. Petersen, James L. Sorenson, Reed F. Winterton | 1997-02-04 |
| 5513628 | Apparatus and method for ventilating and aspirating | Randall D. Block, Paul A. Schumann, Jr., James L. Sorenson | 1996-05-07 |