Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10930342 | Method and apparatus for vitamin D enhancement in mushrooms | William F. Chalupa | 2021-02-23 |
| 9326540 | Method and apparatus for vitamin D enhancement in mushrooms | William F. Chalupa | 2016-05-03 |
| 8545915 | Method and apparatus for vitamin D enhancement in mushrooms | — | 2013-10-01 |
| 7314046 | Apparatus and method for respiratory tract therapy | Dirk Ten Broeck, Owen S. Bamford, William F. Niland, Felino V. Cortez, JR. | 2008-01-01 |
| 5931160 | Ventilator control system and method | Don A. Gilmore, Douglas M. Johnston | 1999-08-03 |
| 5664563 | Pneumatic system | James W. Biondi, Douglas M. Johnston | 1997-09-09 |