Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8242062 | IMS detection of chemical markers in petroleum products | W. Dale Spall, Gary Elceman, Hartwig Schmidt | 2012-08-14 |
| 7208451 | IMS detection of chemical markers in petroleum products | W. Dale Spall | 2007-04-24 |