Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616919 | Universal quadrupole and method of manufacture | Jeffrey T. Kernan, Jean-Luc Truche | 1997-04-01 |
| 5525084 | Universal quadrupole and method of manufacture | Jeffrey T. Kernan, Jean-Luc Truche | 1996-06-11 |
| 4885500 | Quartz quadrupole for mass filter | Stuart C. Hansen, John Fjeldsted | 1989-12-05 |
| 4804839 | Heating system for GC/MS instruments | John Fjeldsted | 1989-02-14 |