| 8167768 |
Eight speed chainless drive for a pedal powered utility tricycle |
— |
2012-05-01 |
| 7823898 |
Multiple speed chainless drive for a utility tricycle with either torque amplifying pedal beams or a conventional bicycle seat and pedals |
— |
2010-11-02 |
| 7686317 |
Ellipticycle with torque amplifying pedal beams and a fully enclosed multiple speed dual rear wheel drive |
— |
2010-03-30 |
| 5560562 |
Fishing reel with a three speed planetary drive and drag control |
— |
1996-10-01 |
| 5022478 |
Power take-off for four wheel drive vehicles |
— |
1991-06-11 |
| 4986556 |
Chainless motocross bicycle |
— |
1991-01-22 |
| 4955627 |
Five speed chainless drive for heavily loaded pedal powered tricycles |
— |
1990-09-11 |
| 4936597 |
Fully enclosed multiple speed drive for a chain driven tandem bicycle |
— |
1990-06-26 |
| 4881750 |
ATB shock absorber |
— |
1989-11-21 |
| 4842291 |
Enclosed multiple speed drive for low maintenance chain driven bicycles |
— |
1989-06-27 |
| 4826190 |
Dual wheel driven tricycle with a fully enclosed multiple speed drive |
— |
1989-05-02 |
| 4815763 |
Shock absorber for mountain bicycles |
— |
1989-03-28 |
| 4770433 |
Multiple speed drive for mountain bicycles |
— |
1988-09-13 |
| 4721015 |
Three stage planetary driving wheel for pedal powered vehicles |
— |
1988-01-26 |
| 4716777 |
Multiple speed transmission for pedal powered vehicles |
— |
1988-01-05 |
| 4715246 |
Three speed chainless planetary transmission for pedal-powered vehicles |
— |
1987-12-29 |
| 4706982 |
Dual range planetary transmission for pedal powered vehicles |
— |
1987-11-17 |
| 4702121 |
Multiple speed driving wheel for pedal powered vehicles |
— |
1987-10-27 |
| 4694708 |
Single speed transmission for pedal-propelled vehicle |
— |
1987-09-22 |
| 4666172 |
Multiple speed planetary transmission for pedal-powered vehicles |
— |
1987-05-19 |
| 4583520 |
Balanced solar concentrator system |
John J. Dietrich, Donald Alan Steinmeyer |
1986-04-22 |