Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10093492 | Material delivery system | Douglas E. Brewster, Jeffrey S. Rickert, Robert G. Criswell, Brian L. Dowler | 2018-10-09 |
| 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 |
| 5252486 | Flow injection analysis of total inorganic phosphate | Christina O'Lear | 1993-10-12 |
| 5240681 | Apparatus for injection analysis of total inorganic phosphate | Christina O'Lear | 1993-08-31 |