Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5769681 | Open-ended toy construction system | Donald L. Greenwood, Heidi Greenwood Pate | 1998-06-23 |
| D315353 | Shoulder rest for telephone handset or the like | Donald L. Greenwood | 1991-03-12 |
| 4921458 | Upright rolling toy assembly | — | 1990-05-01 |
| 4608027 | Soft propellable toy | Reuben B. Klamer | 1986-08-26 |
| RE30299 | Gyroscope toy | — | 1980-06-10 |
| D254020 | Toy locomotive or the like | — | 1980-01-22 |