Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5901944 | Composite valve seal | Michael J. Sandling, Steven M. Kirk | 1999-05-11 |
| 5551471 | Valve with consumable vent hole seal device | Michael J. Sandling, David E. Klotter, Edward Scheid | 1996-09-03 |