Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9919977 | Synthetic gypsum fertilizer product and method of making | Danny Lynn Gray | 2018-03-20 |
| 9873638 | Synthetic gypsum fertilizer product and method of making | Danny Lynn Gray | 2018-01-23 |