Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7056612 | Method of preparing membrane-electrode-gasket assemblies for polymer electrolyte fuel cells | In-Whan Oh, Heung Yong Ha, Seong Ahn Hong, Sang Yeoul Ahn, Yong Chul Lee +3 more | 2006-06-06 |
| 6953631 | Method and apparatus for operating polymer electrolyte membrane fuel cell below the freezing point of water | In Hwan Oh, Jae Jun Ko, Heung Yong Ha, Seong Ahn Hong, Tae Won Lim +2 more | 2005-10-11 |