Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9745149 | Material delivery system | Douglas E. Brewster, Jeffrey S. Rickert, Robert G. Criswell, Brian L. Dowler | 2017-08-29 |
| 9561915 | Pressure differential proofing method for pneumatic conveying | Raymond Kelly, Douglas E. Brewster, Robert G. Criswell, Jeffrey Bickel, Jeffrey S. Rickert +1 more | 2017-02-07 |