Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6837482 | Sealing arrangement for thermally enhanced sealing | Brian Nolan | 2005-01-04 |
| 6129336 | Ball stem seal | Michael J. Sandling | 2000-10-10 |
| 5901944 | Composite valve seal | M. R. Ramakrishnan, Michael J. Sandling | 1999-05-11 |
| 5535986 | Torsionallly loaded fluid seals for rotary valves | Wilbur Dean Hutchens, Timothy A. McMahon, Brian Nolan, Paul R. Hunsberger, Jr. | 1996-07-16 |