Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5904020 | Translucent construction block assembly | Julian Paul Carlson | 1999-05-18 |
| 5687521 | Translucent block assemblies | Julian Paul Carlson | 1997-11-18 |
| D336961 | Triangular translucent block | Julian Paul Carlson | 1993-06-29 |
| 4891925 | Interconnected construction blocks | Julian Paul Carlson | 1990-01-09 |