1
Anoosh I Kiamanesh: In-situ tuned microwave oil extraction process. Trask Britt & Rossa, January 21, 1992: US05082054 (341 worldwide citation)

A method of creating a protocol for oil extraction or for enhancing oil extraction from oil reservoirs. A process of devising and applying a customized electromagnetic irradiation protocol to individual reservoirs. Reservoir samples are tested to determine their content, molecular resonance frequenc ...


2
WITTENBERG JON: Methods of microbial oil extraction and separation. SOLAZYME, Termes Lance A, October 21, 2010: WO/2010/120939 (90 worldwide citation)

Lipids can be extracted from a microbial biomass that constitutes at least 20% lipids by weight and has a moisture content of less than 4% by weight by applying pressure to the biomass so as to release lipids therefrom, thereby leaving a biomass of reduced lipid content; and collecting the lipids.


3
Alexander Angus Grant, Per Almdahl, Per Eivind Gramme, Sven Arne Kjolberg, Bjarne Olsen, Terje Sondtvedt: Downhole gas/water separation and re-injection. Weir Pumps, Norsk Hydro ASA, Gifford Krass Groh Sprinkle Anderson & Citkowski P C, February 17, 2004: US06691781 (78 worldwide citation)

It is common in oil extraction operations to reinject produced gas and\or water back into hydrocarbon bearing formations in order to maintain formation pressure. Conventional production facilities normally flow all formation fluids to the surface and subsequently reinject the required fluids ba ...


4
Gregg Anthony Deluga, Vladimir Zamansky, Ke Liu, Tiffany Elizabeth Pinard Westendorf: Integrated system and method for producing fuel composition from biomass. General Electric Company, Francis T Coppa, February 15, 2011: US07888540 (60 worldwide citation)

A method of producing a fuel composition from a bio-oil feedstock is provided, wherein the bio-oil feedstock is subjected to a step of oil extraction to produce a bio-oil and deoiled residue. At least a portion of the deoiled residue is gasified to produce a hydrogen-containing gas. The bio-oil is s ...


5
Paul R Tabor: Method of in situ oil extraction using hot solvent vapor injection. Hydrocarbon Research, Vincent A Mallare, Fred A Wilson, December 7, 1982: US04362213 (57 worldwide citation)

Heavy oil or bitumen is extracted and removed from underground oil bearing formations having low permeability such as tar sands by injection of hot hydrocarbon solvent vapor into a single well hole at a pressure not substantially exceeding the pressure in the formation to effectively heat and extrac ...


6
Hidetaka Nohira: Device for varying a valve timing and lift for an internal combustion engine. Toyota Jidosha Kabushiki Kaisha, Cushman Darby & Cushman, September 29, 1987: US04696265 (51 worldwide citation)

A device for varying a valve timing and lift for an internal combustion engine comprises a first valve lifter and a second valve lifter, and an oil pressure chamber being defined between the first valve lifter and the second valve lifter. The flow of oil from the oil pressure chamber is continuously ...


7
Hans R Strop, Richard R Perry: Vegetable oil extraction process. Fay Sharpe Beall Fagan Minnich & McKee, January 11, 1994: US05278325 (50 worldwide citation)

A vegetable oil process and assembly is disclosed for extracting oil from an oil bearing material such as soybean, corn and the like. The process comprises adding at least one reagent to the oil bearing material to form a slurry mixture. The slurry is heated at a preselected temperature for a presel ...


8
Arthur M Nonomura: Process for producing a naturally-derived carotene/oil composition by direct extraction from algae. Microbio Resources, Becker & McClain, July 14, 1987: US04680314 (37 worldwide citation)

A process is described for the formation of a naturally derived composition comprising carotenes, particularly beta-carotene, in oil. The process involves the direct oil extraction of the carotene from algae. The algae are initially harvested as a water slurry and concentrated, as by flocculation, i ...


9
Gary R Haefele, Peter A Allen, Gary L Dunkel, Paul C Wegner: Method for recovering oil from an oil-bearing solid material. December 7, 1999: US05998640 (33 worldwide citation)

A method and apparatus for continuously removing oil from oil-bearing solids such as tar sands, vegetables or other solid materials using a solvent is provided. By providing a pressure differential between the exterior and interior of an oil extraction chamber, substantially oil free solids may be r ...


10
Peter A Miller: Travelling sheet, flat-bed filter apparatus and system. Frishauf Holtz Goodman & Woodward, November 11, 1980: US04233157 (31 worldwide citation)

Fluid supplied from a contaminant tank holding the fluid to be filtered, and delivered at a filtered fluid outlet, is supplied to a filter housing which defines a chamber therein subdivided by a perforate divider plate over which the filter paper is guided, and on which it is supported. The filter p ...



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