Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12140101 | Engine calibration systems and methods | Brian Brunelli, Darren E. Cavness, Mario Divis, Brett Jury, Mark Noller +1 more | 2024-11-12 |
| 6810849 | Four-stroke internal combustion engine | Nicholas Hirsch, Mark Donald Schaefer, Peter Hotz, Darrell Wiatrowski, Ronald Lee Bartelt +1 more | 2004-11-02 |
| 5894715 | Mounting apparatus for connecting a power head to a device | Patrick Bruener, Gary S. Johnson | 1999-04-20 |
| 5819513 | Power head assembly for electric grass cutting device | Patrick Bruener, Gary S. Johnson | 1998-10-13 |
| D375963 | Power head for a cordless electric lawnmower | Patrick Bruener, Eric Fickas, Eileen Scharenbroch, Kipp K. Stevens | 1996-11-26 |