a patent search at
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"Rosenfield, Gary C." as 'inventor' yeilds the following
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Patent No. Title
1 5,579,636 Pyrotechnic valve, igniter and combustion preheater for hybrid rocket motors
2* 5,212,946 Reloadable/modular solid propellant rocket motor
3 5,123,355 Rocket ignition assembly and means and methods for making and using same
4 5,054,397 Parachute ejection and recovery system for rockets
5 5,004,186 Finlock alignment mechanism for rockets
note that all patents assigned to Aerotech, Inc. (Las Vegas, NV) except where marked (*), which is assigned to Industrial Solid Propulsion (Las Vegas, NV)
- iz