Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6640503 | Waterproof roof deck post construction and method | Lawrence P. Evensen, Mark Andersen | 2003-11-04 |
| D333186 | Drug specimen test module | Mark Andersen, John von Buelow, Denise C. Garrison, Nelson F. Thune | 1993-02-09 |