Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5142143 | Method and apparatus for preconcentration for analysis purposes of trace constitutes in gases | Stephen M. Penn | 1992-08-25 |
| 4814613 | Collision cell for triple quadrupole tandem mass spectrometry | Suhas Narayan Ketkar | 1989-03-21 |
| 4209693 | Surface ionization monitor for particulates and method | Richard L. Myers | 1980-06-24 |
| 4209696 | Methods and apparatus for mass spectrometric analysis of constituents in liquids | — | 1980-06-24 |