Top Inventors at Playskool All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Joseph Paul Sejnowski | 3 |
| 2 | Douglas Arthur Schultheis | 2 |
| 3 | Frederick Rieber | 2 |
| #4 | John T. Sahler | 2 |
| #5 | Christina M. Beecher | 1 |
| #6 | David M. Dubois | 1 |
| #7 | Dalita Tomellini | 1 |
| #8 | David J. Wohl | 1 |
| #9 | Edwin Kaplan | 1 |
| #10 | Frederick M. Reiber | 1 |
| #11 | Ilan Samson | 1 |
| #12 | Joan Kaplan | 1 |
| #13 | Khipra Nichols | 1 |
| #14 | Leif J. Askeland | 1 |
| #15 | Richard A. Daley | 1 |
| #16 | Walter P. Doe | 1 |
| #17 | Wayne Marcus | 1 |
| #18 | Ajit S. Raghava | 1 |
| #19 | Andrew Morin | 1 |