Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D671559 | Engine | Matthew Martinek, Brian Paul, Jully H. Sieglaff | 2012-11-27 |
| RE40548 | Engine oil heater | Stephen J. Ryczek, James D. Makiya, Kyle Clasen | 2008-10-28 |
| 7389853 | Muffler for an engine | Stephen J. Ryczek, James D. Makiya, Kyle Clasen | 2008-06-24 |
| D536004 | Portion of a horizontal-shaft engine | Stephen J. Ryczek, James D. Makiya, Kyle Clasen | 2007-01-30 |
| D529924 | Cover for a vertical shafted engine | Stephen J. Ryczek, James D. Makiya, Kyle Clasen | 2006-10-10 |
| 7104233 | Engine oil heater | Stephen J. Ryczek, James D. Makiya, Kyle Clasen | 2006-09-12 |
| 6520141 | Rewind cover guard | Stephen J. Ryczek, James D. Makiya | 2003-02-18 |
| 6457189 | Pool liner retainer with cap | — | 2002-10-01 |
| 5548955 | Catalytic converter having a venturi formed from two stamped components | Parrish A. Sandefur | 1996-08-27 |
| 5195191 | Pool skimmer mount | Gunter Stefan | 1993-03-23 |
| 4713849 | Pool liner retainer with closure clip | — | 1987-12-22 |