Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869738 | Particulate trap | William R. Alcorn, Wesley P. Bullock, Edward M. Smith | 1989-09-26 |
| 4823583 | Particulate trap | Wesley P. Bullock | 1989-04-25 |
| 4810588 | Nonnesting, straight corrugation metal foil and method for making same | Wesley P. Bullock | 1989-03-07 |