Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7389575 | Method of manufacturing permanently magnetized elements | Donna Darlene Barlett | 2008-06-24 |
| 6782119 | Space planning system | — | 2004-08-24 |
| 5505620 | Planning and toy assemblies, and the like, employing movable elements of permanent magnet material | — | 1996-04-09 |