1
Robert E Leonard: Supercritical process for producing deasphalted demetallized and deresined oils. Kerr McGee Refining Corporation, William G Addison, September 22, 1981: US04290880 (37 worldwide citation)

A process for effecting a deep cut in a heavy hydrocarbon material without a decrease in the quality of the extracted oil caused by the presence of undesirable entrained resinous bodies and organometallic compounds. The heavy hydrocarbon material is contacted with a solvent in a first separation zon ...


2
Robert E Leonard: Apparatus for soot removal from exhaust gas. Kerr McGee Chemical Corporation, Herbert M Hanegan, April 2, 1991: US05003774 (32 worldwide citation)

An apparatus for removing soot from an exhaust gas stream wherein the exhaust gas stream is contacted with water to provide a substantially water saturated exhaust gas stream, particles and droplets in the water saturated gas stream then are electrically charged to produce a gas stream containing el ...


3
Robert E Leonard: Energy efficient process for separating hydrocarbonaceous materials into various fractions. Kerr McGee Refining Corporation, William G Addison, December 15, 1981: US04305814 (23 worldwide citation)

An energy efficient process for separating a hydrocarbonaceous material into various fractions. The hydrocarbonaceous material is admixed with a solvent and the mixture is introduced into a first separation zone maintained at an elevated first temperature and pressure. The feed mixture separates int ...


4
Robert E Leonard, Robert E Huser: Bank check form. NCR Corporation, Wilbert Hawk Jr, Albert L Sessler Jr, George J Muckenthaler, May 26, 1987: US04667985 (21 worldwide citation)

A bank check or like instrument has a marking area at the right side thereof which includes a plurality of rows and columns of blocks for receiving marks. The combination of the marked blocks represents a dollars and cents amount. The contiguous area adjacent the rows and columns of blocks is coated ...


5
Joseph A Fryberger, Robert E Leonard, Lynn C Jacobs: Autoloader for magnetic tape cartridges. Storage Technology Corporation, Dorr Carson Sloan & Peterson, August 20, 1991: US05041929 (19 worldwide citation)

The autoloader for magnetic tape cartridges uses a companion autoloader magazine that holds a plurality of preloaded magnetic tape cartridges to individually access any one of the plurality of magnetic tape cartridges held by the magazine. The autoloader of the present invention is able to move an a ...


6
Robert E Leonard, Joseph A Fryberger, Lynn C Jacobs: Positioner for magnetic tape cartridge magazine. Storage Technology Corporation, Dorr Carson Sloan & Peterson, September 3, 1991: US05045958 (16 worldwide citation)

The positioner for a magnetic tape cartridge magazine uses a companion cartridge magazine that holds a plurality of preloaded magnetic tape cartridges to individually access any one of the plurality of magnetic tape cartridges held by the cartridge magazine. The positioner of the present invention i ...


7
Roger A Baldwin, Robert E Davis, Robert E Leonard, Donald E Rhodes: Method of improving yield in a coal liquefaction product deashing process. Kerr McGee Corporation, William G Addison, August 14, 1979: US04164466 (15 worldwide citation)

A coal deashing process wherein a feed mixture comprising soluble coal products, insoluble coal products and solvent is separated in a first separation zone into a first heavy phase and a first light phase comprising soluble coal products, solvent and some insoluble coal products. The first light ph ...


8
Robert E Leonard: Soot removal from exhaust gas. Kerr McGee Coal Corporation, Herbert M Hanegan, June 30, 1992: US05125230 (15 worldwide citation)

A method and apparatus for removing soot from an exhaust gas stream wherein the exhaust gas stream is contacted with water to provide a substantially water saturated exhaust gas stream, particles and droplets in the water saturated gas stream then are electrically charged to produce a gas stream con ...


9
Robert E Leonard: Soot removal from exhaust gas. Kerr McGee Coal Corporation, Herbert M Hanegan, John P Ward, March 13, 1990: US04908047 (14 worldwide citation)

A method and apparatus for removing soot from an exhaust gas stream wherein the exhaust gas stream is contacted with water to produce a substantially water saturated exhaust gas stream, particles and droplets in the water saturated gas stream then are electrically charged to produce a gas stream con ...


10
Robert E Leonard: System for separating soluble and insoluble coal products from a feed mixture. Kerr McGee Corporation, William G Addison, May 23, 1978: US04090957 (10 worldwide citation)

An improved coal processing system wherein relatively small droplets of a feed mixture (including both soluble and insoluble coal products) are dispersed in a first separation zone and contacted, countercurrently with a dissolving solvent to form a heavy fraction containing the insoluble coal produc ...