Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5949333 | Operation sensitive reminder | Roger W. Lehmann | 1999-09-07 |
| 5861808 | Motion sensitive reminder | Roger W. Lehmann | 1999-01-19 |
| 5801629 | Motion sensitive reminder | Roger W. Lehmann | 1998-09-01 |
| 5777554 | Motion sensitive reminder | Roger W. Lehmann | 1998-07-07 |
| 5741061 | Light-up planter | Roger W. Lehmann | 1998-04-21 |
| 5721532 | Motion sensitive reminder | Roger W. Lehmann | 1998-02-24 |
| D387198 | Wheeled bookpack with safety straps | Roger W. Lehmann | 1997-12-09 |
| 5421765 | Toy tattoo playset | Roger W. Lehmann | 1995-06-06 |
| D328768 | Doll | Roger W. Lehmann | 1992-08-18 |
| 5137281 | Game playing piece | Roger W. Lehmann | 1992-08-11 |
| 5122779 | Stage programmable light sequencer for a toy | Roger W. Lehmann | 1992-06-16 |
| 5041048 | Multiple graphics selection toy | Roger W. Lehmann | 1991-08-20 |
| 4946413 | Multi-use toy | Roger W. Lehmann | 1990-08-07 |
| 4865318 | Ball tossing device | Roger W. Lehmann | 1989-09-12 |
| 4817209 | Child's baseball glove | Roger W. Lehmann | 1989-04-04 |
| 4799915 | Radio-controlled robot operator for battery-powered toys | Roger W. Lehmann | 1989-01-24 |
| 4708683 | Toy car carrier | Roger W. Lehmann | 1987-11-24 |
| 4581904 | Toy jewelry item with parts movable to a hidden position | Roger W. Lehmann | 1986-04-15 |
| D255474 | Toy ramp | — | 1980-06-17 |