Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10071319 | Euler disc | — | 2018-09-11 |
| 7849784 | Coffee or tea filtering press | — | 2010-12-14 |
| 6739934 | Long range flying disc sporting toy | — | 2004-05-25 |
| 6254452 | Yo-yo having radially anchored cushions, and a string gap with a narrower innermost gap | — | 2001-07-03 |
| 6220980 | Molded ball with fins | — | 2001-04-24 |
| 6179737 | Flying disc | — | 2001-01-30 |
| 6168361 | Locknut | — | 2001-01-02 |
| 6080036 | Yo-yo having radially anchored cushions | — | 2000-06-27 |
| 5383660 | Football with improved grip | Peter MacDonald | 1995-01-24 |
| 5269514 | Football with fins | Brendan Boyle, Fern Mandelbaum | 1993-12-14 |
| 5252381 | Airfoil with thick trailing edge | — | 1993-10-12 |
| 5213539 | Returning flying ring toy | — | 1993-05-25 |
| 5191853 | Stepped hydroplane hull | — | 1993-03-09 |
| 4633200 | Voltage controlled equalizer | — | 1986-12-30 |
| 4615037 | Phase scatter detection and reduction circuit and method | — | 1986-09-30 |
| D285461 | Boomerang | — | 1986-09-02 |
| 4560358 | Gliding ring | — | 1985-12-24 |
| 4479655 | Boomerang | — | 1984-10-30 |
| 4456265 | Gliding ring | — | 1984-06-26 |
| 4302902 | Climbing toy | — | 1981-12-01 |
| 4227326 | Amusement device | — | 1980-10-14 |
| 4222573 | Boomerang | — | 1980-09-16 |