Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D538418 | Filter | Bradley J. Pippel, Michael E. Miles | 2007-03-13 |
| D503972 | Air treatment system | Bradley J. Pippel, Rick G. Good, Matthew H. Hess, Thomas A. Niezgoda | 2005-04-12 |