Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6564560 | Oil-free liquid chiller | Arthur L. Butterworth, David H. Eber | 2003-05-20 |
| 6279340 | Oil-free liquid chiller | Arthur L. Butterworth, David H. Eber, James C. Tischer | 2001-08-28 |
| 6176092 | Oil-free liquid chiller | Arthur L. Butterworth, David H. Eber, James C. Tischer | 2001-01-23 |