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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7433851 | System and method for inferring geological classes A system for inferring geological classes from oilfield well input data is described using a neural network for inferring class probabilities and class sequencing knowledge and optimising the class probabilities according to the sequencing knowledge. ... | 10/07/2008 |
| 7432109 | Spetroscopic pH measurement using optimized mixtures of reagents to extend measurement range An indicator mixture that allows pH measurement over a broader range of pH or to a higher accuracy than available using conventional spectroscopic techniques. In particular, the mixture of the present invention is comprised of two or more reagents such that when com... | 10/07/2008 |
| 7428929 | Method and apparatus for lifting liquids from gas wells A downhole apparatus and method for maintaining or reducing the level of liquids at the bottom of a gas producing well is described including a constriction or throat section, such as a Venturi, in which a production gas flow from the well is used to generate a low ... | 09/30/2008 |
| 7427504 | Determining fluid chemistry of formation fluid by downhole reagent injection spectral analysis A method for analyzing formation fluid in earth formation surrounding a borehole includes storing analytical reagent in a reagent container in a fluids analyzer in a formation tester and moving the formation tester, including the reagent, downhole. Reagent from the ... | 09/23/2008 |
| 7424366 | Time-of-flight stochastic correlation measurements The present invention recited a method and apparatus for measuring a parameter of a fluid within a fluid channel using a tracer element injection by an injection element and detected by a detection element at a location separate from the injection element location. ... | 09/09/2008 |
| 7422060 | Methods and apparatus for completing a well Methods and tools are described to reduce sanding including the steps of fracturing the cement sheath in a localized zone around the casing and having the fractured zone act as sand filter between the formation and openings in the casing, with the openings being bes... | 09/09/2008 |
| 7408836 | Method of and apparatus for processing seismic data in the presence of anisotropy A method of and apparatus for processing seismic data. A method of processing seismic data comprising the steps acquiring seismic data in at least two shots that have different source-receiver azimuths from one another, and selecting events arising from interface se... | 08/05/2008 |
| 7408150 | Well logging method for determining formation characteristics using pulsed neutron capture measurements A method for determining thermal capture cross-sections of formations surrounding an earth borehole, including the following steps: providing a logging device that is moveable through the borehole; transmitting, from the logging device, bursts of neutrons into the f... | 08/05/2008 |
| 7407566 | System and method for sensing using diamond based microelectrodes A method and system is disclosed for monitoring one or more characteristics associated with a fluid. An insulating layer comprising non-conducting diamond is positioned within a housing and has a surface exposed directly or indirectly to the fluid. A plurality of mi... | 08/05/2008 |
