Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846522 | Extruded bug and gravel shield | Douglas L. Bonstead, Carl W. Langren | 1989-07-11 |
| 4836598 | Insect screen attachment apparatus for vehicles | — | 1989-06-06 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846522 | Extruded bug and gravel shield | Douglas L. Bonstead, Carl W. Langren | 1989-07-11 |
| 4836598 | Insect screen attachment apparatus for vehicles | — | 1989-06-06 |