Feifel; Winfried M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Feifel; Winfried M..The latest application filed is for "airfoil".
- Feifel; Winfried M. - Seattle WA
- Feifel; Winfried M. - Redmond WA
| Patent | Date |
|---|---|
| Airfoil Grant 4,641,796 - Feifel February 10, 1 | 1987-02-10 |
| Flap flexure retainer/seal for hydrofoil vessels and the like Grant 4,345,538 - Warner , et al. August 24, 1 | 1982-08-24 |
| Hinge assembly for controllable surfaces Grant 4,305,177 - Feifel December 15, 1 | 1981-12-15 |
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