Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5020936 | Animal running surface | Robert C. Malmgren, Edward L. Umlauf | 1991-06-04 |
| 5014462 | Soil amendment with rubber particles | Robert C. Malmgren, Parviz N. Soltanpour | 1991-05-14 |