1
David W Livingston, David H Neuroth, David G Korte: Cross-linked polyethylene cable insulation. Baker Hughes Incorporated, Felsman Bradley Gunter & Dillon, June 20, 1995: US05426264 (28 worldwide citation)

An electrical cable for use in submersible well pumps in oil and gas well environments is provided having an electrical conductor core which is surrounded by an insulating layer of cross-linked polyethylene. A barrier layer surrounds the cross-linked polyethylene insulating layer. The barrier layer ...


2
Ray L Guzy, David W Livingston: High gas oil ratio resistant elastomer. Baker Hughes Incorporated, Charles D Gunter Jr, April 11, 1989: US04820764 (11 worldwide citation)

A sulfur curable elastomeric composition is shown which exhibits improved resistance to deformation in hot, high gas content environments, such as oil and gas wells. The composition includes a conjugated diolefin polymer rubber, a low molecular weight polubutadiene and a quantity of randomly oriente ...


3
David W Livingston: Moss control composition. The Penn State Research Foundation, Woodard Emhardt Moriarty McNett & Henry, July 8, 2008: US07396801 (4 worldwide citation)

The present invention is an aqueous composition for controlling or eradicating moss from undesirable locations such as lawns and golf course putting greens. The composition contains a fertilizer, a metal containing salt, a surfactant or wetting agent, and optionally, an acidic pH control agent. The ...


4
David W Livingston: Solid moss control composition. Woodard Emhardt Moriarty McNett & Henry, April 2, 2013: US08409620 (2 worldwide citation)

A method of controlling moss by applying to grass infested with moss a dry composition including: a) a source of nitrogen such as isobutylenediurea or methylene urea; b) a non-ionic surfactant or wetting agent; c) a metal containing salt, and d) an acidic pH adjusting agent effective to adjust the p ...


5
Larry V Dalrymple, David W Livingston, Don C Cox: Downhole cable with thermally conductive polymer composites. Baker Hughes Incorporated, Bracewell & Giuliani, March 27, 2012: US08143523 (1 worldwide citation)

A cable for transmitting electricity for use with an electric submersible pump has a plurality of conductors for conducting electricity along the length of the cable. A first layer of insulation surrounds each of the conductors. A jacket, or second layer of insulation, surrounds all of the conductor ...


6
Michael R Rumbaugh, Jim F Evenson, Jackson E Reynolds, David G Korte, David W Livingston, Jeffrey G Frey: Electrical submersible pump system having high temperature insulation materials. Baker Hughes Incorporated, Bracewell & Giuliani, April 8, 2014: US08692115

Electric submersible well pumping systems operable in well temperatures of above about 180° C. (356° F.) utilize high temperature electrical insulation. The electrical insulation includes E-base polyimide films or perfluoropolymer TE films on various components. The insulation films are employed aro ...


7
David W Livingston: Solid moss control composition. Woodard Emhardt Moriarty Mcnett & Henry, November 6, 2008: US20080274887-A1

A method of controlling moss by applying to grass infested with moss a dry composition including: a) a source of nitrogen such as isobutylenediurea or methylene urea; b) a non-ionic surfactant or wetting agent; c) a metal containing salt, and d) an acidic pH adjusting agent effective to adjust the p ...


8
David W Livingston: Omni directional adjustable acoustic lens. David W Livingston Jr, May 8, 2008: US20080107291-A1

An omni directional adjustable acoustic lens is a means to adjust the Hertz range of sound So it can be acoustically set. Then the lens projects the sound in a 360 degree fashion.


9
Larry V Dalrymple, David W Livingston, Don C Cox: Downhole Cable With Thermally Conductive Polymer Composites. Baker Hughes Incorporated, Bracewell & Giuliani, April 22, 2010: US20100096161-A1

A cable for transmitting electricity for use with an electric submersible pump has a plurality of conductors for conducting electricity along the length of the cable. A first layer of insulation surrounds each of the conductors. A jacket, or second layer of insulation, surrounds all of the conductor ...


10
Michael R Rumbaugh, Jim F Evenson, Jackson E Reynolds, David G Korte, David W Livingston, Jeffrey G Frey: Electrical Submersible Pump System Having High Temperature Insulation Materials. Baker Hughes Incorporated, March 15, 2012: US20120063931-A1

Electric submersible well pumping systems operable in well temperatures of above about 180° C. (356° F.) utilize high temperature electrical insulation. The electrical insulation includes E-base polyimide films or perfluoropolymer TE films on various components. The insulation films are employed aro ...