Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6604406 | Human portable preconcentrator system | Charles A. Brusseau, David W. Hannum, James G. Puissant, Nathan R. Varley | 2003-08-12 |
| 6572825 | Apparatus for thermally evolving chemical analytes from a removable substrate | David W. Hannum | 2003-06-03 |
| 6523393 | Human portable preconcentrator system | Francis A. Bouchier, David W. Hannum, Charles L. Rhykerd, Jr. | 2003-02-25 |