Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7036819 | Three-way ring puzzle | Douglas Cooke, Gerald Cooke | 2006-05-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7036819 | Three-way ring puzzle | Douglas Cooke, Gerald Cooke | 2006-05-02 |