Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5948713 | Cristobalite-free mullite grain and method of producing same | Robert L. Antram, Randy Lemley, Keith Snider | 1999-09-07 |
| 5792251 | Method of producing metakaolin | George Bartich, Mike Stromberg, Randy Lemley, Robert L. Antram, Keith Snider | 1998-08-11 |