Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352890 | Quadrupole ion trap mass spectrometer having two axial modulation excitation input frequencies and method of parent and neural loss scanning | Jodie V. Johnson, Richard A. Yost, Michael S. Story | 1994-10-04 |