Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8863538 | Ammonia recycling still for a refrigeration system and method therefor | Wayne Douglas Zollinger | 2014-10-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8863538 | Ammonia recycling still for a refrigeration system and method therefor | Wayne Douglas Zollinger | 2014-10-21 |