The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7731123 | Contra-bevel driven control surface A contra-bevel driven control mechanism repositions a control surface in a fluid environment such as an aerodynamic or hydrodynamic environment. This involves mechanically coupling an airfoil and a control surface. The control surface may pivot about a spanwise axis... | 06/08/2010 |
| 7270298 | Personal flying apparatus A personal flying apparatus has a substantially horizontal element having a lower surface adapted to acted on by a wind upwardly so as to produce a wind-generated lifting force, and an inflatable element connected with the substantially horizontal element and filled... | 09/18/2007 |
| 5707029 | Aileron/elevators and body flap for roll, pitch, and yaw control The present invention discloses an aircraft control system having simultaneously controllable rear aileron/elevators and a retractable body flap for longitudinal stabilization. The aileron/elevators are airfoils comprising the complete horizontal tail pla... | 01/13/1998 |
| 5322243 | Separately banking maneuvering aerodynamic control surfaces, system and method A maneuvering system for a flight vehicle rotates a lifting aerodynamic surface of the flight vehicle about an axis parallel with a direction of flight of the vehicle in a rotational direction corresponding to the desired change of flight direction to whi... | 06/21/1994 |
| 5050819 | Rotatable non-circular forebody flow controller The invention is a rotatable, non-circular forebody flow controller. The apparatus comprises a small geometric device located at a nose of a forebody of an aircraft or missile. The geometric device has a circular base that fits flush upon the remaining fo... | 09/24/1991 |
| 4181343 | Oscillating movement damping means intended for pivotally suspended hoisting gear A means to damp the oscillating movements of a hoisting device suspended in a link the upper end of which is in the form of a cylinder in which is pivotally mounted a first horizontal shaft on the outer end of a crane jib and the lower end of which is in ... | 01/01/1980 |