Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7252704 | Filter arrangement and methods | Joseph C. Tokar | 2007-08-07 |
| 6994744 | Filter arrangement and methods | Joseph C. Tokar | 2006-02-07 |
| 6960245 | Filter arrangement and methods | Joseph C. Tokar | 2005-11-01 |
| 6740142 | Industrial bag house elements | John M. Buettner, Mark A. Gogins, Thomas M. Weik | 2004-05-25 |
| 6533845 | Filter arrangement and methods | Joseph C. Tokar | 2003-03-18 |
| 6348085 | Filter arrangement and methods | Joseph C. Tokar | 2002-02-19 |
| 5935284 | Filter cartridge | Joseph C. Tokar, Mervin E. Wright, Timothy H. Grafe | 1999-08-10 |
| 5931988 | Cabinet filter assembly and methods | Joseph C. Tokar, Daniel T. Risch | 1999-08-03 |
| 5871557 | Mist collector cartridge | Joseph C. Tokar, Mervin E. Wright, Timothy H. Grape | 1999-02-16 |
| 5454858 | Process of using mist collector cartridge | Joseph C. Tokar, Mervin E. Wright, Timothy H. Grafe | 1995-10-03 |
| 5415676 | Mist collector cartridge | Joseph C. Tokar, Mervin E. Wright, Timothy H. Grafe | 1995-05-16 |
| 5246472 | Apparatus for filtering engine exhaust | John T. Herman, Wayne M. Wagner, Mervin E. Wright, Bruce Hoppenstedt | 1993-09-21 |
| 4946484 | Support for clean room ceiling grid system | Donald R. Monson, Joseph C. Tokar | 1990-08-07 |
| 4883513 | Filter cap for clean room ceiling grid system | Donald R. Monson | 1989-11-28 |
| 4704144 | Air filtering apparatus | Reynold F. Durre | 1987-11-03 |