Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5417245 | Metering valve and new use thereof | William V. Sargent | 1995-05-23 |
| 5370146 | Sample valve | Thomas M. Kenesson | 1994-12-06 |
| 5357995 | Self-cleaning slurry metering valve | Kenneth J. Busch, Thomas M. Kenesson | 1994-10-25 |