Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607336 | Subject specific, word/phrase selectable message delivering doll or action figure | Steven Lebensfeld, Harvey Goldberg, David Chu | 1997-03-04 |
| 5147237 | Toy audio device | David Chu Ki Kwan, Steven Lebensfeld, Harvey Goldberg | 1992-09-15 |
| 5092810 | Toy audio device | David Chu Ki Kwan, Steven Lebensfeld, Harvey Goldberg | 1992-03-03 |
| 5073140 | Toy action figures and speech and sound effects accessory therefor | Steven Lebensfeld, Harvey Goldberg, David Chu Ki Kwan | 1991-12-17 |