Greenhalgh; Samuel
Patent Applications and Registrations
Patent applications and USPTO patent grants for Greenhalgh; Samuel.The latest application filed is for "air refueling drogue".
- Greenhalgh; Samuel - Doylestown PA
- Greenhalgh; Samuel - Dolestown PA
- Greenhalgh; Samuel - Philadelphia PA
| Patent | Date |
|---|---|
| Air refueling drogue Grant 6,375,123 - Greenhalgh , et al. April 23, 2 | 2002-04-23 |
| Air refueling drogue Grant 5,921,294 - Greenhalgh , et al. July 13, 1 | 1999-07-13 |
| Oscillating flap lift enhancement device Grant 5,884,872 - Greenhalgh March 23, 1 | 1999-03-23 |
| Air-launchable gliding sonobuoy Grant 5,566,908 - Greenhalgh October 22, 1 | 1996-10-22 |
| Air-launchable gliding sonobuoy Grant 5,456,427 - Greenhalgh October 10, 1 | 1995-10-10 |
| Lift enhancement device Grant 5,335,886 - Greenhalgh August 9, 1 | 1994-08-09 |
| Aircraft with single surface membranous airfoils Grant 4,667,898 - Greenhalgh May 26, 1 | 1987-05-26 |
| Transpiration drying and embossing of wet paper webs Grant RE28,459 - Cole , et al. July 1, 1 | 1975-07-01 |
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