Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6486469 | Dielectric capillary high pass ion filter | Steven M. Fischer, Robert K. Crawford | 2002-11-26 |
| 6417511 | Ring pole ion guide apparatus, systems and method | Steven M. Fischer | 2002-07-09 |