Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6648237 | Toy vehicle track segment and method of manufacturing a toy vehicle track segment | Richard Rothkopf, Donald E. Toht, Lin Ming Chuan Cindy | 2003-11-18 |
| 6645031 | Playboard with collapsing easel | Richard Rothkopf, Donald E. Toht, Gary Aigner, Mary Lenehan, Lisa Gelfond | 2003-11-11 |
| D481424 | Toy track segment | Richard Rothkopf, Donald E. Toht, Lin Ming Chuan Cindy | 2003-10-28 |
| D477641 | Edges of supports for playboard with easel | Richard Rothkopf, Donald E. Toht, Gary Aigner, Mary Lenehan, Lisa Gelfond | 2003-07-22 |