1
Lee Minus Parson
Lee Minus Parson, Eugene R DU Fresne: Magnesium containing protective coating for ferrous metal. Ameron, Christie Parker & Hale, April 11, 1978: US04083726 (3 worldwide citation)

A coating for protecting steel from corrosion is a mixture of an organic solvent and binder, powdered magnesium, and a passivating agent which has a pH greater than about 8 when in contact with water. Steel covered with the coating is cut or welded by the application of heat sufficient to melt the m ...


2
Jean-luc Dubois
Jean Luc Dubois: Method for the synthesis of diacids or diesters from natural fatty acids and/or esters. Arkema France, Arkema, Patent Department 26th Floor, December 2, 2010: US20100305354-A1

The invention relates to a process for the synthesis of diacids or diesters of general formula ROOC—(CH2)x—COOR, in which n is an integer between 5 and 14, R is either H or an alkyl radical of 1 to 4 carbon atoms, from natural long-chain monounsaturated fatty acids or esters including at least 10 ad ...


3
Peter Van Meurs, Eric P De Rouffignac, Harold J Vinegar, Michael F Lucid: Conductively heating a subterranean oil shale to create permeability and subsequently produce oil. Shell Oil Company, December 12, 1989: US04886118 (348 worldwide citation)

Shale oil is produced from a subterranean interval of oil shale, where the interval is initially substantially impermeable and contains a specified grade and thickness of oil shale. Said interval is conductively heated from borehole interiors which are kept hotter than about 600.degree. C. and are h ...


4
Guggilam C Sresty, Richard H Snow, Jack E Bridges: Recovery of liquid hydrocarbons from oil shale by electromagnetic heating in situ. IIT Research Institute, Fitch Even Tabin & Flannery, December 4, 1984: US04485869 (319 worldwide citation)

A method of electromagnetic heating in situ recovers liquid hydrocarbons from an oil shale formation containing kerogen in an inorganic matrix where the formation is substantially impermeable to fluids under native conditions. A block of the oil shale formation is substantially uniformly heated in s ...


5
Van Meurs Peter, de Rouffignac Eric Pierre, Vinegar Harold Jay, Lucid Michael Francis: Chauffage par conductivite dun gisement de schiste bitumineux pour promouvoir la permeabilite et lextraction subsequente du petrole, Conductively heating a subterranean oil shale to create permeabilityand subsequently produce oil. Shell Canada, SMART & BIGGAR, August 27, 1991: CA1288043 (318 worldwide citation)

A B S T R A C T CONDUCTIVELY HEATING A SUBTERRANEAN OIL SHALE TO CREATE PERMEABILITY AND SUBSEQUENTLY PRODUCE OIL Shale oil is subsequently produced from a subterraneaninterval of oil shale, where the interval is initiallysubstantially impermeable and contains a specified grade andthickness of oil s ...


6
Calhoun G Jeambey: System for recovery of petroleum from petroleum impregnated media. April 4, 1989: US04817711 (317 worldwide citation)

Process for in situ recovery of carbonaceous values from underground petroleum impregnated media such as oil shale, under controlled radiation from a microwave distributing source adjacent the media, e.g. in a borehole, effected in the absence of air, such that the radiation is distributed at least ...


7
Ottfried J Hahn: Method and apparatus for conversion of coal in situ. University of Kentucky Research Foundation, King and Schickli, October 11, 1988: US04776638 (301 worldwide citation)

A method for the electro-thermal and electrochemical underground conversion of coal into oil and by-products comprises the steps of inserting an underground probe into a bore hole until the probe is in close proximity to a coal seam. A mixture of air, steam, an electrolyte and a suitable catalyst is ...


8
Raymond S Kasevich, Myer Kolker, Arthur S Dwyer: In situ radio frequency selective heating system. Raytheon Company, Walter F Dawson, Richard M Sharkansky, Joseph D Pannone, July 3, 1984: US04457365 (290 worldwide citation)

The process and apparatus for extracting the products of kerogen in situ from an oil shale body by supplying energy selectively to the kerogen by high frequency electric fields in the frequency range between 100 kilohertz and 1000 megahertz at an intensity which heats the kerogen to a temperature ra ...


9
Terry Ruel C: Method of pyrolysis of coal in situ. In Situ Technology, Burton Crandell & Polumbus, December 9, 1975: US3924680 (254 worldwide citation)

A method of pyrolysis of coal in situ includes the steps of establishing a pair of passages between a sub-surface coal formation and the surface with the coal passages being adapted to separately remove liquids and gases from the coal formation, establishing a sump at the bottom of the passages whic ...


10
Ruel C Terry: Minimizing environmental effects in production and use of coal. In Situ Technology, September 19, 1978: US04114688 (251 worldwide citation)

Coal gas is produced in situ using the techniques of gasification, liquefaction and pyrolysis. Normal effluents to the atmosphere are recycled in part to the underground reaction zone for conversion into commercial products. Contaminants to underground aquifers are captured and injected into the und ...



Click the thumbnails below to visualize the patent trend.