Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837004 | Rumen-stable pellets | Shane Kipley Kirk, Kenneth P. Perry, E. Phillip Smith, Yeong-Ho Chang, Waylon L. Jenkins | 1989-06-06 |
| 4808412 | Rumen-stable compositions | E. Phillip Smith | 1989-02-28 |