Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5726447 | Ionization chamber and mass spectrometer having a corona needle which is externally removable from a closed ionization chamber | James L. Bertsch, J. Michael Flanagan, Darrell L. Gourley, Val C. Robinson, Joseph Vandenburg | 1998-03-10 |