Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D710189 | T-spline joiner | Colin Duncan Simonds | 2014-08-05 |
| 5957744 | Construction toys comprising building blocks and single and composite elongated star connectors | Martin John Bridges | 1999-09-28 |
| 5938497 | Constructional toys | — | 1999-08-17 |
| 5500635 | Products incorporating piezoelectric material | — | 1996-03-19 |
| 5143669 | Fiber-reinforced molded racquet frame | — | 1992-09-01 |
| 4981639 | Method of moulding racquets with stringing holes | — | 1991-01-01 |
| 4935185 | Method of making a fibre-reinforced molded racquet frame | — | 1990-06-19 |
| 4842798 | Method of moulding racquets with stringing holes | — | 1989-06-27 |
| 4793958 | Method of molding a racquet with string securing loops | — | 1988-12-27 |
| 4575082 | Racquet with ratchet-connected throat and handle | Robert C. Kelley | 1986-03-11 |
| 4568084 | Racquet with improved string anchorage | — | 1986-02-04 |
| 4496152 | Racquets with protective bumper strip | — | 1985-01-29 |
| 4463702 | Warning devices | — | 1984-08-07 |