Billig; Frederick S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Billig; Frederick S..The latest application filed is for "integrated air inlet system for multi-propulsion aircraft engines".
- Billig; Frederick S. - Monrovia MD
- Billig; Frederick S. - Glenwood MD
- Billig; Frederick S. - Rockville MD
- Billig; Frederick S. - Silver Spring MD
| Patent | Date |
|---|---|
| Integrated air inlet system for multi-propulsion aircraft engines Grant RE43,731 - Bulman , et al. October 16, 2 | 2012-10-16 |
| Integrated air inlet system for multi-propulsion aircraft engines Grant 7,216,474 - Bulman , et al. May 15, 2 | 2007-05-15 |
| Integrated air inlet system for multi-propulsion aircraft engines App 20060107648 - Bulman; Melvin J. ; et al. | 2006-05-25 |
| Translating cowl inlet with retractable propellant injection struts Grant 5,214,914 - Billig , et al. June 1, 1 | 1993-06-01 |
| Propellant utilization system Grant 5,135,184 - Billig August 4, 1 | 1992-08-04 |
| Supersonic ramjet missile Grant 4,291,533 - Dugger , et al. September 29, 1 | 1981-09-29 |
| High reactivity fuels for supersonic combustion ramjets Grant 3,883,376 - Billig , et al. May 13, 1 | 1975-05-13 |
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