| 6575391 |
Mill with quick change, unitized, dynamic elements |
David Brown |
2003-06-10 |
| 6572040 |
Coal grinding, cleaning and drying processor |
— |
2003-06-03 |
| 6386169 |
Starting and stopping device for internal combustion engine |
Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Richard A. Dykstra, Steven Dethloff +6 more |
2002-05-14 |
| 6311663 |
Starting and stopping device for internal combustion engine |
Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Richard A. Dykstra, Steven Dethloff +6 more |
2001-11-06 |
| 6286771 |
Two-stage micronizer for reducing oversize particles |
David Brown |
2001-09-11 |
| 6263852 |
Starting and stopping device for internal combustion engine |
Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Richard A. Dykstra, Steven Dethloff +6 more |
2001-07-24 |
| 6260529 |
Starting and stopping device for internal combustion engine |
Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Richard A. Dykstra, Steven Dethloff +6 more |
2001-07-17 |
| 6230678 |
Starting and stopping device for internal combustion engine |
Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Richard A. Dykstra, Steven Dethloff +6 more |
2001-05-15 |
| 5575824 |
Coal preparation device |
David Brown |
1996-11-19 |
| 5275631 |
Coal pulverizer purifier classifier |
David Brown |
1994-01-04 |
| 5257743 |
Quarry pulverizer |
— |
1993-11-02 |
| 4355586 |
Solid fuel gasification system |
— |
1982-10-26 |