Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12384731 | Black nitrogen—a milk-based fertilizer composition with a soluble coal dust ingredient | William Robert Selkirk, Jr., Michael Brown, Jennifer Xiaoyu Xu Brown | 2025-08-12 |
| 12319631 | Black nitrogen—a milk-based fertilizer composition with coal dust | William Robert Selkirk, Jr. | 2025-06-03 |
| 11358906 | Black nitrogen—a milk-based fertilizer | William Robert Selkirk, Jr. | 2022-06-14 |