Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7036819 | Three-way ring puzzle | Louise H. Cooke, Gerald Cooke | 2006-05-02 |
| 5954242 | Button attaching device | Charles L. Deschenes, Paul A. Davignon, William G. Hartman, Hugh Smith | 1999-09-21 |
| 5788138 | Button attaching device | Charles L. Deschenes, Paul A. Davignon, Terrence K. Jones | 1998-08-04 |
| 5785230 | Button attaching device | Paul A. Davignon, Charles L. Deschenes, Hugh Smith, William G. Hartman | 1998-07-28 |