Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679957 | Method and apparatus for monitoring mercury emissions | Michael D. Durham, Richard John Schlager, Andrew D. Sappey, Roger W. Marmaro, Kevin G. Wilson | 1997-10-21 |
| 5272345 | Calibration method and apparatus for measuring the concentration of components in a fluid | Michael D. Durham, Mark R. Burkhardt | 1993-12-21 |