Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7493525 | Method and system for managing failure information | Lane Cameron Wigley | 2009-02-17 |
| 5725043 | Low pressure casting process and apparatus | Richard L. Schaefer, James Michael Williamson, Norman L. Miller | 1998-03-10 |
| 5590681 | Valve assembly | Richard L. Schaefer, James Michael Williamson, Norman L. Miller | 1997-01-07 |