Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6789803 | Mechanical face seal | — | 2004-09-14 |
| 6568687 | Mechanical face seal | — | 2003-05-27 |
| 6398223 | Mechanical face seal | — | 2002-06-04 |
| 5490682 | Split mechanical face seal | David M. Dudek, Orest T. Browar, Angelo G. Ralle | 1996-02-13 |
| 5199720 | Split mechanical face seal | Thomas A. Evans, David M. Dudek, Russell G. Wieser, Brian J. Atwater, Robert J. Eisbrenner | 1993-04-06 |
| 5114163 | Split mechanical face seal | Thomas A. Evans, David M. Dudek, Russell G. Wieser, Brian J. Atwater, Robert J. Eisbrenner | 1992-05-19 |