Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5167060 | Method for making a heat shield | Donald A. Nawrocki, Joseph Pfeifer | 1992-12-01 |
| 5080949 | Heat shield with mounting means for use in a vehicle powered by an internal combustion engine | Donald A. Nawrocki, Joseph Pfeifer | 1992-01-14 |