Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6029698 | Air regulator valve for ventilated cage and rack system | Dale Murray, John E. Sheaffer | 2000-02-29 |
| 5852861 | Sipper tube insertion and removal apparatus | J. James Cunningham, Dewitt C. Priddy, Gary B. Bunney, William Marston | 1998-12-29 |
| 5735233 | Animal cage rack locking mechanism | Eric A. Deitrich, John E. Sheaffer, Neil E. Campbell, James Best, William Marston | 1998-04-07 |