Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9633828 | Ion focusing member and mass spectrometer using the same | Yen-Hsien Li | 2017-04-25 |
| 9583326 | Focusing ionization device and mass spectrometer using the same | Yen-Hsien Li | 2017-02-28 |