Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6908494 | Multistage air cleaner including pulse cleaning system | Gary R. Gillingham, Stan M. Koehler, William J. Krisko, Thomas Miller, Fred H. Wahlquist +2 more | 2005-06-21 |
| 6872237 | Multistage air cleaner including pulse cleaning system | Gary R. Gillingham, Stan M. Koehler, William J. Krisko, Thomas Miller, Fred H. Wahlquist +2 more | 2005-03-29 |