Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5829132 | Methods of assembling an exhaust processor | James Quackenbush | 1998-11-03 |
| 5293743 | Low thermal capacitance exhaust processor | Robert T. Usleman | 1994-03-15 |
| RE33118 | Exhaust processor | George E. Scheitlin, Robert T. Usleman | 1989-11-28 |
| 4783959 | Exhaust processor assembly | — | 1988-11-15 |
| 4663934 | Manifold exhaust processor | — | 1987-05-12 |
| 4625511 | Exhaust processor | George E. Scheitlin, Robert T. Usleman | 1986-12-02 |