Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6503582 | Fluid-swellable composition, device and method for using the same | Joseph Nardoza, Lawrence Mass, Abimael Cordova | 2003-01-07 |
| 5916949 | Moldable compositions and method of making the same | Wallace H. Shapero, Gilda Alvarez | 1999-06-29 |
| 5310421 | Play material | Wallace H. Shapero | 1994-05-10 |
| 5258068 | Play material composition | Wallace H. Shapero | 1993-11-02 |