Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9677600 | Connecting rod system for an engine | John W. Sigrist, Jeffrey H. Whitmore | 2017-06-13 |
| 8915234 | Fuel cap | John Gulke, Christy Matuszewski, Geoffrey P. Zabrowski, Peter D. Shears | 2014-12-23 |
| 7530427 | Exhaust deflector for a muffler | Jeffrey P. Feist | 2009-05-12 |
| 7530428 | Exhaust deflector for a muffler | Jeffrey P. Feist, Matthew J. Nagel | 2009-05-12 |
| 7441532 | Four-stroke internal combustion engine having reduced noise emissions | Tom Disch, Jeffrey P. Feist, Kayne Kowis, Robert James Rose, Marvin Vissers +2 more | 2008-10-28 |
| D540928 | Air cleaner cover | Marvin Vissers, Jeffrey H. Whitmore | 2007-04-17 |
| 6325036 | Starting and stopping device for an internal combustion engine | Gary J. Gracyalny, John D. Santi, Stanley Filipak | 2001-12-04 |