Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5357727 | Expansion joint | Glen Duckworth, Bill Heisterberg, Mark Honstra, Trest Polina, Stephen L. Newcomb | 1994-10-25 |
| 5351448 | Fire barrier | Roger L. Rumsey | 1994-10-04 |
| 5326609 | Expansion joint fire barrier | — | 1994-07-05 |