Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9145997 | Mold for making sound-absorbing duct and sound-absorbing duct using the same | Young Hak Jang, Young Ho Han | 2015-09-29 |
| 8574355 | System for checking filter of air cleaner for automobiles | Younghak Jang, Minyong Park, Changho Lee | 2013-11-05 |