Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9587993 | Probe assembly for a fluid bed reactor | Matthew J. Miller, Michael V. Spangler, Barry Wemp | 2017-03-07 |
| 9238211 | Segmented silicon carbide liner | Matthew J. Miller, Michael V. Spangler, Gerald Zeininger, William J. Onstot, Walter J. Stupin | 2016-01-19 |
| 9023425 | Fluid bed reactor | Michael V. Spangler, Levi C. Allen, Robert J. Geertsen, Paul E. Ege, Walter J. Stupin +1 more | 2015-05-05 |
| 8075692 | Fluid bed reactor | Michael V. Spangler, Levi C. Allen, Robert J. Geertsen, Paul E. Ege, Walter J. Stupin +1 more | 2011-12-13 |