Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6820649 | Ball fuel valve with concentrically oriented feed points | — | 2004-11-23 |
| 5906224 | Reserve fuel valve and method for making | Donald Koengeter | 1999-05-25 |
| 5307770 | Priming pump valve | Stephen D. Davis | 1994-05-03 |
| 5256040 | Priming pump valve | Stephen D. Davis | 1993-10-26 |
| 5115837 | Ball fuel valve with reserve position | — | 1992-05-26 |
| 5071325 | Combination primer and mixture enrichment device | Donald Koengeter | 1991-12-10 |