Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6968631 | Method and apparatus for determining presence of moisture in freeze dryer vacuum line | Mark Schmitz, Tim Xing | 2005-11-29 |
| 5620561 | Vortex evaporation | James F. Ptacek, Gary P. Roepke | 1997-04-15 |
| 5569357 | Vortex evaporator | James F. Ptacek, Gary P. Roepke | 1996-10-29 |
| 4727710 | Automatic vehicle ground speed control convertible to manual operation | — | 1988-03-01 |
| 4503749 | Combine visor with environmental components | Stephen G. Miggels | 1985-03-12 |