Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6502991 | Rotary fluid bearing coatings and coining and processes for manufacturing the same | Richard Knepper, Gary L. Doll | 2003-01-07 |
| 4595061 | Deep well pipe water release valve | — | 1986-06-17 |