Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11772980 | Methods for removal of impurities from limestone and calcium oxide during the production of hydrated lime | Martin L. Gran, Randy Griffard | 2023-10-03 |
| 11420878 | Methods for removal of lead and/or other contaminants from limestone and resultant calcium oxide | Martin L. Gran, Randy Griffard | 2022-08-23 |