Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758244 | Thrust plug and method for using a thrust plug | Donald J. Klein | 2004-07-06 |
| 6709020 | Stabilizer elbow lock | David A. McAllister | 2004-03-23 |
| 5676197 | Mounting for drive mechanism of heat exchanger screen cleaning wand | David Henry Diebold, Alan Joseph Novak, Robert J. Johnston, John Lewis Rukgaber | 1997-10-14 |