Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7484409 | Fluid level switch | Gary J. Gracyalny, David W. Procknow, John Garthwaite | 2009-02-03 |
| 6983736 | Governor stabilizer | Robert K. Mitchell | 2006-01-10 |
| 6595897 | Combination speed limiter and transmission interlock system | Charles H. Ketelhohn | 2003-07-22 |
| 6386169 | Starting and stopping device for internal combustion engine | Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Steven Dethloff, Charles Brown +6 more | 2002-05-14 |
| 6311663 | Starting and stopping device for internal combustion engine | Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Steven Dethloff, Charles Brown +6 more | 2001-11-06 |
| 6263852 | Starting and stopping device for internal combustion engine | Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Steven Dethloff, Charles Brown +6 more | 2001-07-24 |
| 6260529 | Starting and stopping device for internal combustion engine | Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Steven Dethloff, Charles Brown +6 more | 2001-07-17 |
| 6237555 | Spark blanking apparatus for an internal combustion engine | Robert K. Mitchell, Gary J. Gracyalny | 2001-05-29 |
| 6239709 | Liquid level sensor for internal combustion engine | Robert K. Mitchell | 2001-05-29 |
| 6230678 | Starting and stopping device for internal combustion engine | Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Steven Dethloff, Charles Brown +6 more | 2001-05-15 |
| 6145487 | Automatic air inlet control system for an engine | Robert K. Mitchell | 2000-11-14 |
| 6116212 | Engine speed limiter | — | 2000-09-12 |
| 6040767 | Control system for engine lubricant level sensor | — | 2000-03-21 |
| 6012420 | Automatic air inlet control system for an engine | Robert K. Mitchell | 2000-01-11 |
| 5619845 | Battery-powered lawn cutting system | Patrick Bruener, Paul A. Tharman, John A. Fiorenza, II, Joseph L. Pfaff, William H. Reitman | 1997-04-15 |
| 5606851 | Battery-powered lawn cutting system | Patrick Bruener, Paul A. Tharman, John A. Fiorenza, II, Joseph L. Pfaff, William H. Reitman | 1997-03-04 |
| 5605130 | Electronic governor having increased droop at lower selected speeds | Robert K. Mitchell | 1997-02-25 |
| 5524588 | Electronic speed governor | Robert K. Mitchell | 1996-06-11 |
| 5445014 | Electronic engine load and revolution sensing device | John A. Fiorenza, II, Joseph L. Pfaff, Scott Wesenberg, Douglas Shears | 1995-08-29 |
| 5388176 | DC motor speed control system | Robert K. Mitchell | 1995-02-07 |
| 5353762 | Modular automatic speed changing system | John A. Fiorenza, II | 1994-10-11 |
| 5208519 | Electronic speed governor | Douglas G. Janisch | 1993-05-04 |
| 5105331 | Idling system for devices having speed controllers | John A. Fiorenza, II | 1992-04-14 |
| 5048502 | Capacitive-discharge ignition system with step timing advance | — | 1991-09-17 |
| 5024204 | Capacitive discharge ignition system with continuous timing advance | — | 1991-06-18 |