Patents by Inventor Mark Alan Davis

Mark Alan Davis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8580658
    Abstract: Methods for forming graphite-based structures, in which a substrate is patterned to form a plurality of elements on the substrate, are provided. A trench separates a first element from an adjacent element in the plurality. The surface of the first element and the surface of the trench (i) are respectively characterized by different first and second elevations and (ii) are separated by a side wall of the first element. Orthogonal projections of the surface of the first element and the surface of the trench onto a common plane are contiguous or overlapping. In the method, a first graphene layer on the entire first surface and a second graphene layer on the entire second surface are concurrently generated. The second graphene layer has a thickness that is less than a difference between the first and second elevations. Thus, a graphite-based structure having isolated first and second graphene layers is formed.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: November 12, 2013
    Assignee: Solan, LLC
    Inventor: Mark Alan Davis
  • Publication number: 20130258471
    Abstract: A grid polarizer including an array of groups of parallel elongated ribs disposed over a substrate. Each group of elongated ribs can comprise at least four ribs. Tops of two center ribs, at a center of each group, can be substantially the same elevational height and can be higher by more than 10 nm than tops of outer ribs of the groups. A region between adjacent ribs can have an index of refraction substantially equal to one. Some or all of the ribs can comprise polarizing wires disposed over substrate rods.
    Type: Application
    Filed: September 27, 2012
    Publication date: October 3, 2013
    Applicant: Moxtek, Inc.
    Inventor: Mark Alan Davis
  • Patent number: 8535616
    Abstract: Light enhancement devices, applications for the light enhancement devices, and methods for making the light enhancement devices are provided. The light enhancement devices include a substrate and a film of metal disposed over the substrate, the film of metal including at least one cavity. The cavity may be of various shapes depending on the desired application.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: September 17, 2013
    Assignees: Moxtek, Inc., University of Utah Research Foundation
    Inventors: Steven M. Blair, Mohit Diwekar, Sachin Attavar, Alexander Chagovetz, Mark Alan Davis, John Dredge
  • Publication number: 20130201557
    Abstract: A wire grid polarizer comprising a transparent substrate having a first surface. Multiple separate and discrete sections of wire grids can be disposed over the first surface and attached to the substrate, with a border between the sections including an opaque mask material. The mask material can be disposed over the first surface of the substrate. The mask material can be a material different than the wire grid material. The mask material can extend over or under a portion of an edge of the wire grid.
    Type: Application
    Filed: August 6, 2012
    Publication date: August 8, 2013
    Inventors: Mark Alan Davis, Vern W. Bangerter
  • Publication number: 20130182315
    Abstract: Light enhancement devices, applications for the light enhancement devices, and methods for making the light enhancement devices are provided. The light enhancement devices include a substrate and a film of metal disposed over the substrate, the film of metal including at least one cavity. The cavity may be of various shapes depending on the desired application.
    Type: Application
    Filed: October 21, 2009
    Publication date: July 18, 2013
    Inventors: Steven M. Blair, Mohit Diwekar, Sachin Attavar, Alexander Chagovetz, Mark Alan Davis, John Dredge
  • Publication number: 20130077164
    Abstract: A wire grid polarizer with multiple functionality sections. Separate and discrete sections can include a difference in pitch p, a difference in wire width w, a difference in wire height h, a difference in wire material, a difference in coating on top of the wires, a difference in thin film between the wires and the substrate, a difference in substrate between the wires, a difference in number of layers of separate wires, and/or a difference in wire cross-sectional shape.
    Type: Application
    Filed: March 27, 2012
    Publication date: March 28, 2013
    Inventor: Mark Alan Davis
  • Publication number: 20120313195
    Abstract: A semiconductor detector device, such as a PIN diode or silicon drift detector, including a substrate with an entrance window. The entrance window comprises a conductive layer, and an insulating layer disposed between the conductive layer and the substrate. The insulating layer and conductive layer cover a center portion of the surface of the substrate.
    Type: Application
    Filed: December 14, 2011
    Publication date: December 13, 2012
    Inventors: Keith W. Decker, Derek Hullinger, Mark Alan Davis
  • Publication number: 20120250154
    Abstract: A fine pitch wire grid polarizer can have a pitch of less than 80 nanometers and a protective layer on the wires, by anisotropically etching the wire grid polarizer to form two parallel, elongated rods substantially located at corners where the wires contacted the substrate. The rods can be polarizing elements. A wire grid polarizer can have a repeated pattern of groups of parallel elongated wires disposed over a substrate. Each group of elongated wires comprises at least three wires. At least one wire at an interior of each group can be taller by more than about 10 nm than outermost wires of each group. Wires of a wire grid polarizer can be a byproduct of an etch reaction. A multi-step wire grid polarizer can comprise a base with a plurality of parallel multi-step ribs disposed on the base and a coating disposed along vertical surfaces of the steps.
    Type: Application
    Filed: September 2, 2011
    Publication date: October 4, 2012
    Inventor: Mark Alan Davis
  • Publication number: 20120075699
    Abstract: A segmented film deposition device and a method of performing segemented film deposition. A wire grid polarizer, with a separate, symmetrical, coating on top of each wire, without coating the substrate between the wires, can be made by this method.
    Type: Application
    Filed: March 30, 2011
    Publication date: March 29, 2012
    Inventors: Mark Alan Davis, Benjamin Spencer Center
  • Publication number: 20120051905
    Abstract: Apparatus is provided featuring a bearing cartridge in combination with a pedestal. The bearing cartridge may be configured to be coupled to a pumping assembly combination and having a predetermined centerline. The pedestal may be configured with an axial channel to receive and support the bearing cartridge and allow the bearing cartridge to slide therein. The bearing cartridge and the pedestal are configured to couple together substantially at or above the centerline of the bearing cartridge in order to reduce center height requirements of the apparatus, where the center height is defined as the distance between the centerline of the bearing cartridge and the bottom surface of the pedestal supporting the bearing cartridge. The apparatus takes the form of a pump or pumping assembly, arrangement or combination, including a slurry-type pump or a centrifugal pump.
    Type: Application
    Filed: July 21, 2011
    Publication date: March 1, 2012
    Applicant: ITT MANUFACTURING ENTERPRISES, INC
    Inventors: Mark Alan DAVIS, Timothy Martin FALKIEWICZ, Mark Alexander PLAYFORD
  • Publication number: 20120051897
    Abstract: A pump for solids handling is provided having a suction liner in combination with an impeller. The suction liner has a suction liner spiral design. The impeller has forward curved impeller suction side pump out vanes.
    Type: Application
    Filed: July 21, 2011
    Publication date: March 1, 2012
    Applicant: ITT MANUFACTURING ENTERPRISES, INC.
    Inventors: Mark Alan DAVIS, Eugene P. SABINI, Simon Craig Caioneach BRADSHAW
  • Publication number: 20100118390
    Abstract: Light enhancement devices, applications for the light enhancement devices, and methods for making the light enhancement devices are provided. The light enhancement devices include a substrate and a film of metal disposed over the substrate, the film of metal including at least one cavity. The cavity may be of various shapes depending on the desired application.
    Type: Application
    Filed: October 21, 2009
    Publication date: May 13, 2010
    Inventors: Steven M. Blair, Mohit Diwekar, Sachin Attavar, Alexander Chagovetz, Mark Alan Davis, John Dredge
  • Publication number: 20100103517
    Abstract: A segmented film deposition wire grid polarizer with a separate coating on top of each rib.
    Type: Application
    Filed: July 22, 2009
    Publication date: April 29, 2010
    Inventors: Mark Alan Davis, Benjamin Spencer Center
  • Patent number: 6623019
    Abstract: A steer axle assembly in accordance with the present invention includes an axle beam defining a first boss with a first bore. The assembly further includes a knuckle body that defines a second boss. The second boss is in the form of a unitary sleeve from which a tie rod arm and steering arm extend. The second boss includes a second bore. The assembly further includes a set of bearings disposed in one of the first and second bores. In one embodiment of the invention, the bearings are disposed in the axle beam bore. In another embodiment of the invention, the bearings are disposed in the bore defined by the knuckle body. The assembly finally includes a kingpin. The kingpin is rotatably received within the bore having the bearings and is rigidly coupled within the bore that does not include the bearings. The kingpin may be tightened to its required specification via the use of a washer and nut on one end of the kingpin.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: September 23, 2003
    Assignee: Dana Corporation
    Inventor: Mark Alan Davis
  • Publication number: 20030062701
    Abstract: A steer axle assembly in accordance with the present invention includes an axle beam defining a first boss with a first bore. The assembly further includes a knuckle body that defines a second boss. The second boss is in the form of a unitary sleeve from which a tie rod arm and steering arm extend. The second boss includes a second bore. The assembly further includes a set of bearings disposed in one of the first and second bores. In one embodiment of the invention, the bearings are disposed in the axle beam bore. In another embodiment of the invention, the bearings are disposed in the bore defined by the knuckle body. The assembly finally includes a kingpin. The kingpin is rotatably received within the bore having the bearings and is rigidly coupled within the bore that does not include the bearings. The kingpin may be tightened to its required specification via the use of a washer and nut on one end of the kingpin.
    Type: Application
    Filed: November 6, 2002
    Publication date: April 3, 2003
    Inventor: Mark Alan Davis
  • Patent number: 6499752
    Abstract: A steer axle assembly in accordance with the present invention includes an axle beam defining a first boss with a first bore. The assembly further includes a knuckle body that defines a second boss. The second boss is in the form of a unitary sleeve from which a tie rod arm and steering arm extend. The second boss includes a second bore. The assembly further includes a set of bearings disposed in one of the first and second bores. In one embodiment of the invention, the bearings are disposed in the axle beam bore. In another embodiment of the invention, the bearings are disposed in the bore defined by the knuckle body. The assembly finally includes a kingpin. The kingpin is rotatably received within the bore having the bearings and is rigidly coupled within the bore that does not include the bearings. The kingpin may be tightened to its required specification via the use of a washer and nut on one end of the kingpin.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: December 31, 2002
    Assignee: Dana Corporation
    Inventor: Mark Alan Davis