Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6665140 | Conductive lock washer | Vaclav Prochazka, Matthew J. Sandor, D. Michael Keffeler | 2003-12-16 |
| 6600632 | Conductive lock washer | Vaclav Prochazka, Matthew J. Sandor, D. Michael Keffeler | 2003-07-29 |