Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6126823 | Spin-on coolant filter | Brent A. Gulsvig, Daniel Roebbeke | 2000-10-03 |
| 6083381 | Fuel filter with sediment drain valve and level indicator | John F. Connelly, Brent A. Gulsvig, Jeff Theisen | 2000-07-04 |
| 6012485 | Fluid filter arrangement including valve arrangement, fluid level indicator, and methods thereof | John F. Connelly, Brent A. Gulsvig, Jeff Theisen | 2000-01-11 |