Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5252116 | Organic base fertilizer from municipal sewage sludge | Earl R. Markham, John T. Markham | 1993-10-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5252116 | Organic base fertilizer from municipal sewage sludge | Earl R. Markham, John T. Markham | 1993-10-12 |