Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4977719 | Fire resistant expansion joint | Allan R. LaRoche, Douglas S. Pearmain | 1990-12-18 |
| 4948652 | Elastomeric composite membrane | Robert B. Walters | 1990-08-14 |
| 4663894 | Flexible gutter | Allan R. LaRoche, Robert Butcher, Marcel L. M. Corriveau, Jean A. Dubuc | 1987-05-12 |