Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4714483 | Air dryer purge control for turbocharged compressors | James P. Koening, David John Knight, James E. Szudy, William Wurst | 1987-12-22 | $50,777,000 |
| 4691968 | Dual circuit brake valve | James G. Pugh, Duane R. Johnson | 1987-09-08 | $6,586,000 |
| 4660894 | Proportioning brake valve with dual area secondary piston | Milan J. Sebo | 1987-04-28 | $4,538,000 |
| 4646840 | Flotation riser | Ronald G. Pettus, Emanuel Schnitzer, Edmund A. Fisher | 1987-03-03 | $4,436,000 |
| 4605262 | Three way check valve | — | 1986-08-12 | $5,461,000 |
| 4550953 | Electro-pneumatic control for a vehicle fluid pressure braking system | — | 1985-11-05 | $1,879,000 |
| 4368926 | Brake proportioning system | — | 1983-01-18 | $4,413,000 |