Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7828867 | Filter retainer mechanism for a portable air treatment system | Ronald C. Johansson, Kevin E. Kinzer, Glendon D. Kappel, Casey L. Carlson, Paula A. Marrs | 2010-11-09 |