Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8899217 | Bowstring cam arrangement for compound long bow or crossbow | — | 2014-12-02 |
| 8651095 | Bowstring cam arrangement for compound crossbow | — | 2014-02-18 |
| 8578918 | Crossbow with bowstring redirection | — | 2013-11-12 |
| 8381692 | Internal combustion engine with exhaust-phase power extraction serving cylinder pair(s) | — | 2013-02-26 |
| 6776148 | Bowstring cam arrangement for compound bow | — | 2004-08-17 |
| 6237928 | Pedaled propulsion system | — | 2001-05-29 |
| 6067974 | Compound bow | — | 2000-05-30 |
| 5388564 | Compound bow | — | 1995-02-14 |
| 5335927 | Pedaled propulsion system | — | 1994-08-09 |
| 4979476 | Counter-balance system for counter-rotating twin-shaft reciprocating engine | — | 1990-12-25 |
| 4898041 | Drive linkage for reciprocating engine | — | 1990-02-06 |
| 4287867 | Compound bow | — | 1981-09-08 |