Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7963471 | Fine grinding roller mill | — | 2011-06-21 |
| 7897134 | System and method for calcining gypsum | — | 2011-03-01 |
| 7898207 | Method for controlling a DC motor | Gary S. Jacobson, Wesley A. Kirschner | 2011-03-01 |