Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5431191 | Mechanically interlocked layered tube with controlled flexibility | Douglas D. Colby | 1995-07-11 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5431191 | Mechanically interlocked layered tube with controlled flexibility | Douglas D. Colby | 1995-07-11 |