Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |