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).
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Publication number: 20170365473Abstract: Graphite-based devices with a reduced characteristic dimension and methods for forming such devices are provided. One or more thin films are deposited onto a substrate and undesired portions of the deposited thin film or thin films are removed to produce processed elements with reduced characteristic dimensions. Graphene layers are generated on selected processed elements or exposed portions of the substrate after removal of the processed elements. Multiple sets of graphene layers can be generated, each with a different physical characteristic, thereby producing a graphite-based device with multiple functionalities in the same device.Type: ApplicationFiled: August 11, 2017Publication date: December 21, 2017Inventor: Mark Alan Davis
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Publication number: 20170309710Abstract: A structure is provided that comprises a substrate, a plurality of elements, and a plurality of trenches disposed on the substrate. Each element is separated from adjacent elements by a trench in the plurality of trenches and has a top surface with a first and an opposing second side. A first portion of the top surface is on the first side and a second portion of the top surface is on the opposing second side. The structure further comprises a plurality of first graphene layers, each of which is formed on the first portion of the top surface of an element in the plurality of elements. The structure further comprises a plurality of second graphene layers, each of which is formed on the second portion of the top surface of a corresponding element so that each element is separately overlayed by a first graphene layer and a second graphene layer.Type: ApplicationFiled: March 21, 2017Publication date: October 26, 2017Inventor: Mark Alan Davis
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Patent number: 9798058Abstract: Structures and methods of making wire grid polarizers having multiple regions, including side bars, strips, and/or side ribs along sides of a central region. The central region can include a single region or multiple regions. Each region can have a different function for improving polarizer performance. The various regions can support each other for improved wire grid polarizer durability.Type: GrantFiled: March 14, 2017Date of Patent: October 24, 2017Assignee: Moxtek, Inc.Inventors: Dean Probst, Qihong Wu, Eric Gardner, Mark Alan Davis
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Patent number: 9768026Abstract: Graphite-based devices with a reduced characteristic dimension and methods for forming such devices are provided. One or more thin films are deposited onto a substrate and undesired portions of the deposited thin film or thin films are removed to produce processed elements with reduced characteristic dimensions. Graphene layers are generated on selected processed elements or exposed portions of the substrate after removal of the processed elements. Multiple sets of graphene layers can be generated, each with a different physical characteristic, thereby producing a graphite-based device with multiple functionalities in the same device.Type: GrantFiled: October 21, 2014Date of Patent: September 19, 2017Assignee: Solan, LLCInventor: Mark Alan Davis
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Publication number: 20170184768Abstract: Structures and methods of making wire grid polarizers having multiple regions, including side bars, strips, and/or side ribs along sides of a central region. The central region can include a single region or multiple regions. Each region can have a different function for improving polarizer performance. The various regions can support each other for improved wire grid polarizer durability.Type: ApplicationFiled: March 14, 2017Publication date: June 29, 2017Inventors: Dean Probst, Qihong Wu, Eirc Gardner, Mark Alan Davis
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Patent number: 9688540Abstract: A method of forming a graphite-based structure on a substrate comprises patterning the substrate thereby forming a plurality of elements on the substrate. Each respective element in the plurality of elements is separated from an adjacent element on the substrate by a corresponding trench in a plurality of trenches on the substrate and each respective element in the plurality of elements has a corresponding top surface. The method further comprises segmentedly depositing a graphene initiating layer onto the top surface of each respective element in the plurality of elements; and generating graphene using the graphene initiating layer thereby forming the graphite-based structure.Type: GrantFiled: January 15, 2014Date of Patent: June 27, 2017Assignee: Solan, LLCInventor: Mark Alan Davis
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Patent number: 9632223Abstract: Structures and methods of making wire grid polarizers having multiple regions, including side bars, strips, and/or side ribs along sides of a central region. The central region can include a single region or multiple regions. Each region can have a different function for improving polarizer performance. The various regions can support each other for improved wire grid polarizer durability.Type: GrantFiled: August 27, 2014Date of Patent: April 25, 2017Assignee: Moxtek, Inc.Inventors: Dean Probst, Qihong Wu, Eric Gardner, Mark Alan Davis
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Patent number: 9478422Abstract: Graphite-based devices with a reduced characteristic dimension and methods for forming such devices are provided. One or more thin films are deposited onto a substrate and undesired portions of the deposited thin film or thin films are removed to produce processed elements with reduced characteristic dimensions. Graphene layers are generated on selected processed elements or exposed portions of the substrate after removal of the processed elements. Multiple sets of graphene layers can be generated, each with a different physical characteristic, thereby producing a graphite-based device with multiple functionalities in the same device.Type: GrantFiled: February 25, 2014Date of Patent: October 25, 2016Assignee: Solan, LLCInventor: Mark Alan Davis
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Patent number: 9437425Abstract: Methods for forming integrated graphite-based structures with interconnections between leads and graphene layers are provided. A substrate is patterned to form a plurality of elements on the substrate. A trench separates a first element from an adjacent element in the plurality of elements. A lead is deposited on a side wall of the first element, and a layer from the top of the first element is removed to expose a portion of the lead. Both the deposition of the lead and removal of a layer from the top of the first element are conducted before generation of graphene layers on the top of the first element and the bottom of the trench. Thus, an integrated graphite-based structure having spatially isolated but electrically connected graphene layers is formed.Type: GrantFiled: January 10, 2014Date of Patent: September 6, 2016Assignee: Solan, LLCInventor: Mark Alan Davis
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Patent number: 9354374Abstract: Wire grid polarizers, and methods of making wire grid polarizers, including an array of parallel, elongated nano-structures disposed over a surface of a substrate. Each of the nano-structures can include a first rib disposed over a surface of a substrate and a pair of parallel, elongated wires, each laterally oriented with respect to one another, and disposed over the first rib. The wire grid polarizers can be durable with high transmission of one polarization of light, high contrast, and/or small pitch. The wire grid polarizers can also have high absorption or high reflection of an opposite polarization of light.Type: GrantFiled: August 27, 2014Date of Patent: May 31, 2016Assignee: Moxtek, Inc.Inventors: Bin Wang, Ted Wangensteen, Rumyana Petrova, Mike Black, Steven Marks, Dean Probst, Mark Alan Davis
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Publication number: 20150376778Abstract: A method for forming a graphite-based structure comprises patterning a substrate thereby forming a plurality of elements, each respective element in the plurality of elements separated from an adjacent element by a corresponding trench in a plurality of trenches on the substrate. A first element in the plurality of elements has a first surface. A first trench in the plurality of trenches separates the first element from an adjacent element in the plurality of elements, and the first trench has a second surface. The first surface and the second surface are separated by a first side wall of the first element. The method further comprises creating a graphene initiating layer on the first side wall of the first element. The method also comprises generating graphene using the graphene initiating layer thereby forming the graphite-based structure.Type: ApplicationFiled: February 1, 2014Publication date: December 31, 2015Inventor: Mark Alan Davis
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Publication number: 20150371854Abstract: Graphite-based devices with a reduced characteristic dimension and methods for forming such devices are provided. One or more thin films are deposited onto a substrate and undesired portions of the deposited thin film or thin films are removed to produce processed elements with reduced characteristic dimensions. Graphene layers are generated on selected processed elements or exposed portions of the substrate after removal of the processed elements. Multiple sets of graphene layers can be generated, each with a different physical characteristic, thereby producing a graphite-based device with multiple functionalities in the same device.Type: ApplicationFiled: February 25, 2014Publication date: December 24, 2015Inventor: Mark Alan Davis
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Publication number: 20150360954Abstract: A method of forming a graphite-based structure on a substrate comprises patterning the substrate thereby forming a plurality of elements on the substrate. Each respective element in the plurality of elements is separated from an adjacent element on the substrate by a corresponding trench in a plurality of trenches on the substrate and each respective element in the plurality of elements has a corresponding top surface. The method further comprises segmentedly depositing a graphene initiating layer onto the top surface of each respective element in the plurality of elements; and generating graphene using the graphene initiating layer thereby forming the graphite-based structure.Type: ApplicationFiled: January 15, 2014Publication date: December 17, 2015Inventor: Mark Alan DAVIS
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Publication number: 20150357189Abstract: Methods for forming integrated graphite-based structures with interconnections between leads and graphene layers are provided. A substrate is patterned to form a plurality of elements on the substrate. A trench separates a first element from an adjacent element in the plurality of elements. A lead is deposited on a side wall of the first element, and a layer from the top of the first element is removed to expose a portion of the lead. Both the deposition of the lead and removal of a layer from the top of the first element are conducted before generation of graphene layers on the top of the first element and the bottom of the trench. Thus, an integrated graphite-based structure having spatially isolated but electrically connected graphene layers is formed.Type: ApplicationFiled: January 10, 2014Publication date: December 10, 2015Inventor: Mark Alan Davis
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Publication number: 20150349061Abstract: Methods for forming graphite-based structures (302, 304), in which a substrate is patterned to form a plurality of elements (104, 208) on the substrate (102), 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 (302) on the entire first surface and a second graphene layer (304) 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: ApplicationFiled: December 21, 2013Publication date: December 3, 2015Applicant: Solan, LLCInventor: Mark Alan Davis
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Patent number: 9172041Abstract: An integrated graphene-based structure comprises an N-dimensional array of elements formed on a surface of a substrate. The N-dimensional array of elements includes a plurality of rows. Each respective row in the plurality of rows comprises a corresponding plurality of elements formed along a first dimension. Each element in the corresponding plurality of elements comprising at least one graphene stack and separated from an adjacent element along the first dimension by a first average spatial separation thereby resulting in a first periodicity in lateral spacing along the first dimension. Each respective row in the plurality of rows is separated from an adjacent row along a second dimension by a second average spatial separation, thereby resulting in a second periodicity in lateral spacing along the second dimension. The N-dimensional array exhibits a set of characteristic electromagnetic interference properties in response to electromagnetic radiation incident on the N-dimensional array.Type: GrantFiled: July 2, 2014Date of Patent: October 27, 2015Assignee: Solan, LLCInventor: Mark Alan Davis
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Patent number: 9133853Abstract: 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: GrantFiled: July 21, 2011Date of Patent: September 15, 2015Inventors: Mark Alan Davis, Timothy Martin Falkiewicz, Mark Alexander Playford
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Patent number: 9093631Abstract: An integrated graphene-based structure comprises an N-dimensional array of elements formed on a surface of a substrate. The N-dimensional array of elements includes a plurality of rows. Each respective row in the plurality of rows comprises a corresponding plurality of elements formed along a first dimension. Each element in the corresponding plurality of elements comprising at least one graphene stack and separated from an adjacent element along the first dimension by a first average spatial separation thereby resulting in a first periodicity in lateral spacing along the first dimension. Each respective row in the plurality of rows is separated from an adjacent row along a second dimension by a second average spatial separation, thereby resulting in a second periodicity in lateral spacing along the second dimension. The N-dimensional array exhibits a set of characteristic electromagnetic interference properties in response to electromagnetic radiation incident on the N-dimensional array.Type: GrantFiled: July 2, 2014Date of Patent: July 28, 2015Assignee: Solan, LLCInventor: Mark Alan Davis
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Publication number: 20150147540Abstract: Graphite-based devices with a reduced characteristic dimension and methods for forming such devices are provided. One or more thin films are deposited onto a substrate and undesired portions of the deposited thin film or thin films are removed to produce processed elements with reduced characteristic dimensions. Graphene layers are generated on selected processed elements or exposed portions of the substrate after removal of the processed elements. Multiple sets of graphene layers can be generated, each with a different physical characteristic, thereby producing a graphite-based device with multiple functionalities in the same device.Type: ApplicationFiled: October 21, 2014Publication date: May 28, 2015Inventor: Mark Alan Davis
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Publication number: 20150132548Abstract: Graphite-based devices with a reduced characteristic dimension and methods for forming such devices are provided. One or more thin films are deposited onto a substrate and undesired portions of the deposited thin film or thin films are removed to produce processed elements with reduced characteristic dimensions. Graphene layers are generated on selected processed elements or exposed portions of the substrate after removal of the processed elements. Multiple sets of graphene layers can be generated, each with a different physical characteristic, thereby producing a graphite-based device with multiple functionalities in the same device.Type: ApplicationFiled: October 21, 2014Publication date: May 14, 2015Inventor: Mark Alan Davis