Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7498703 | Shaft sealing assembly | Michael J. Rea, Paul Yager | 2009-03-03 |
| 7105466 | Siliceous clay slurry | — | 2006-09-12 |
| 7091148 | Silicious clay slurry | — | 2006-08-15 |
| 6696377 | Clay slurry | — | 2004-02-24 |