Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5967760 | Jet pump with filter for washing machines | David M. Howie, Kenyon A. Hapke | 1999-10-19 |
| 5941374 | Self-adjusting lid switch with dampening element | Kenyon A. Hapke, David M. Howie, Spencer C. Schantz | 1999-08-24 |