Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6450853 | Building block system, especially a toy building block system | — | 2002-09-17 |
| D406619 | Construction game | — | 1999-03-09 |
| D396499 | Construction game element | — | 1998-07-28 |
| D377059 | Construction game | — | 1996-12-31 |
| D373390 | Construction game | — | 1996-09-03 |
| 5453034 | Plug-in module as a component of a toy building block system | — | 1995-09-26 |
| 4861307 | Wheel for a modular assembly system | — | 1989-08-29 |
| 4813904 | Base element for the production of panels for a toy construction system | — | 1989-03-21 |
| 4582496 | Socketed building block | — | 1986-04-15 |
| 4519786 | Toy-figure | — | 1985-05-28 |
| 4376351 | Wheel | — | 1983-03-15 |