Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6224381 | Educating special needs children about money | Dean A. Caldwell, Christie Lockhart | 2001-05-01 |
| D440947 | Electrical switch | David F. Batts | 2001-04-24 |
| D438910 | Game apparatus | — | 2001-03-13 |
| 6142786 | Educating special needs children about shapes and hardware | Dean A. Caldwell, Christie Lockhart | 2000-11-07 |
| 6129550 | Educating special needs children about place settings | Dean A. Caldwell, Christie Lockhart | 2000-10-10 |