Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699855 | Plate fin heat exchanger and method of making thereof | — | 1997-12-23 |
| 5644931 | Gas liquefying method and heat exchanger used in gas liquefying method | Koichi Ueno | 1997-07-08 |