Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7785451 | Portable oxygen maintenance and regulation concentrator apparatus | Yingjeng James Li | 2010-08-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7785451 | Portable oxygen maintenance and regulation concentrator apparatus | Yingjeng James Li | 2010-08-31 |