- United States 7810403 Starter Motor Having a Permanently Engaged Gear
- United States 7770706 Strut Based Overrunning Pulleys
- United States 7661329 Pawl Drive for Coupling Torque Between Two Rotatable Elements
- United States 5237882 Engine starter gearing with laminate cushion washer
- United States 4777836 Engine starter gearing
- United States 4843897 Engine starter gearing (alternate design for MDP weights)
- United States 4912991 Thrust ring for starter clutch
- United States 4768392 Engine starter gearing
- United States 5050441 Engine starter gearing (Positork centrifugal separator)
- United States 5042312 Dual shock absorber starter drive
- United States 4712435 Engine starter gearing (Positork centrifugal weight driving means)
- United States 4715239 Engine starter gearing (Positork ramp ring elimination)
- United States 4661715 Electric roller clutch starter drive
- United States 4627299 Engine starter gearing
- Canada 2038749 Engine starter gearing (Positork separator fix)
- Canada 1233044 Engine starter gearing (Positork centrifugal separator)
- Canada 1291346 Engine starter gearing (Positork ramp ring elimination)
- Canada 1313776 Engine starter gearing
- Canada 1186190 Two stage starter drive system
- Canada 1291347 Engine starter gearing (Positork centrifugal weight driving means)
- France 2668204 Engine starter gearing (Positork separator fix)
- France 2625533 Engine starter gearing (alternate design for MDP weights)
- France 2558898 Engine starter gearing
- Germany 3730939.0 Engine starter gearing (Positork ramp ring elimination)
- Germany 3844116 Engine starter gearing (alternate design for MDP weights)
- Germany 3730938.2 Engine starter gearing (Positork centrifugal weight driving means)
- Germany 3502283 Engine starter gearing (Positork centrifugal separator)
- Germany 4122841 Engine starter gearing (Positork separator fix)
- Japan 2025283 Engine starter gearing (Positork ramp ring elimination)
- Japan 2025312 Engine starter gearing (alternate design for MDP weights)
- United Kingdom 2153438 Engine starter gearing (Positork centrifugal separator)
- United Kingdom 2195146 Engine starter gearing (Positork ramp ring elimination)
- United Kingdom 2195147 Engine starter gearing (Positork centrifugal weight driving means)
- United Kingdom 2214237 Engine starter gearing (alternate design for MDP weights)
- Additional U.S. and International Patents Pending
