Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9657962 | Tower floor register | — | 2017-05-23 |
| 5915706 | Wheelbarrow with integrated trailering and dumping capabilities | — | 1999-06-29 |
| 5879315 | Hot and cold digit pack | — | 1999-03-09 |
| 5584871 | Expressible compress | — | 1996-12-17 |
| 5499495 | Lawn mower having adjustable air vents | Richard A. Heisman, Stephen J. Vos | 1996-03-19 |
| 5442902 | Rotary mower having integrated deflector/mulching plug and improved blade | Kent H. Elrod | 1995-08-22 |
| 5138825 | Riding mower having a pedal operated height adjustment mechanism, air assisted discharge, and improved hydrostatic shift linkage | Harlin J. Trefz, Daniel T. Hergatt, Douglas Pohl | 1992-08-18 |
| D304165 | Necktie clasp | — | 1989-10-24 |