Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5722589 | Composite load bearing structure | — | 1998-03-03 |
| 5609295 | Composite railway tie and method of manufacture thereof | — | 1997-03-11 |
| 5367007 | Multi-layer composite block & process for manufacturing | — | 1994-11-22 |
| 5221702 | Composite block & process for manufacturing | — | 1993-06-22 |