Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7736521 | Viscosity control and filtration of well fluids Circulating completion, workover and drilling fluids used in hydrocarbon recovery are filtered after monitoring for viscosity, which frequently causes plugging of filters. A viscometer generates a signal representative of viscosity in the fluid; the signal is used b... | 06/15/2010 |
| 7736518 | Separating mixtures of oil and water A cavitation device is used to heat and facilitation the separation of mixtures and emulsions of oil and water. Waste heat from the power source for the cavitation device may be utilized to elevate the temperature of incoming mixtures or emulsions. The heated mixtur... | 06/15/2010 |
| 7568523 | Treatment of cesium-containing fluids Cesium solutions are treated in a cavitation device to increase their temperature and facilitate the removal of water from them. The context is normally an oil well fluid or a mining solution. The concentrated solutions can be reused, in the case of oil well fluids,... | 08/04/2009 |
| 7546874 | Conserving components of fluids A cavitation device is used to heat, concentrate and recycle or otherwise reuse dilute and other oil well fluids, brines and muds, and solution mining fluids, all of which commonly contain ingredients worthy of conservation. The cavitation device can be powered by a... | 06/16/2009 |
| 7448501 | Concentric C-shaped filter and screen topology A screen for separating solids and liquids is formed from parallel strips of wedge wire or similar material into a substantially cylindrical two-sided enclosure in a generally C-shaped profile. Unfiltered liquid containing solids contacts the screen surface on both ... | 11/11/2008 |
| 7318472 | In situ filter construction A permeable mass is constructed downhole in a well by placing thermoplastic particulates downhole and fusing them together by heating or solvating. ... | 01/15/2008 |
| 7231973 | Viscosity control and filtration of well fluids Circulating completion and workover fluids used in hydrocarbon recovery are filtered after monitoring for viscosity, which frequently causes plugging of filters. A viscometer generates a signal representative of viscosity in the fluid; the signal is used by a progra... | 06/19/2007 |
| 7201225 | Conserving components of fluids A cavitation device is used to heat, concentrate and recycle or otherwise reuse dilute and other oil well fluids, brines and muds, and solution mining fluids, all of which commonly contain ingredients worthy of conservation. The cavitation device is powered by a Die... | 04/10/2007 |
