Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6158213 | Vehicle exhaust changeover apparatus | David J. Linberg, Gregory Linberg | 2000-12-12 |
| 5391110 | Exhaust gas discharge apparatus | David J. Linberg, Gregory Linberg | 1995-02-21 |