Patents by Inventor Keith Perkins
Keith Perkins 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: 20140068080Abstract: The disclosed subject matter describes a method, system, apparatus, and storage medium for interfacing multiple communication systems via a partitionable router. The router has at least two partitions, each partition having a subset of the router's resources allocated to it. Software programs are executed within each partition using their respective allocated resources. The resources, and any subset thereof, may be allocated non-exclusively, exclusively, and/or non-linearly to the partitions. The router receives information and determines the format of the information. The router identifies the receiving party and transforms the received information into a format compatible for the receiving party. The router then transmits the converted information to the receiving party, where the transmitting and/or receiving party is one of the software programs.Type: ApplicationFiled: December 20, 2012Publication date: March 6, 2014Applicant: AVFINITY, INCInventors: Stephen Perkins, Keith Perkins
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Publication number: 20130261727Abstract: A variable zone high metal to vessel ratio stent includes a proximal high metal to vessel ratio zone, a central low metal to vessel ratio zone, and a distal high metal to vessel ratio zone. The proximal high metal to vessel ratio zone is deployed with fixation and sealing to healthy tissue of a main vessel superior to branch vessels and an aneurysm. The central low metal to vessel ratio zone is deployed directly on ostai of the branch vessels. However, as the central low metal to vessel ratio zone is highly permeable, blood flows from the main vessel through the central low metal to vessel ratio zone and into branch vessels.Type: ApplicationFiled: March 27, 2012Publication date: October 3, 2013Applicant: Medtronic Vascular, Inc.Inventors: Keith PERKINS, Samuel Robaina, Jeffery Argentine, Walter Bruszewski, Andrew Kiehl
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Publication number: 20130261728Abstract: A method includes covering ostai of branch vessels emanating from a main vessel and an aneurysm with a high metal to vessel ratio stent. A metal to vessel ratio of the high metal to vessel ratio stent is sufficiently high to encourage tissue ingrowth around the high metal to vessel ratio stent yet is sufficiently low to ensure perfusion of the branch vessels through the high metal to vessel ratio stent. The ingrowth of tissue provides secure fixation and sealing of the high metal to vessel ratio stent to the main vessel and remodels and essentially eliminates the aneurysm. Further, as the entire high metal to vessel ratio stent is permeably, the high metal to vessel ratio stent is deployed without having to rotationally position the high metal to vessel ratio stent.Type: ApplicationFiled: March 27, 2012Publication date: October 3, 2013Applicant: Medtronic Vascular, Inc.Inventors: Keith PERKINS, Samuel Robaina, Jeffery Argentine, Walter Bruszewski, Andrew Kiehl
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Patent number: 8404095Abstract: A method of immersing an electrode in an electroplating solution while under vacuum, to substantially eliminate air and/or other gas from microscopic holes, cavities or indentations in the electrode. A method of electroplating an electrode in an electroplating solution including the application of a vacuum to the electrode while it is immersed in the electroplating solution to thereby substantially eliminate air and/or other gas from microscopic holes, cavities or indentations in the electrode. The electroplating liquid may be applied to only one side of the electrode (“the wet side”) in which case, sufficient time is allowed to pass for the immersion liquid to fill the microscopic through-holes, cavities or indentations in the electrode. An enhancement of this mode is to force liquid through the microscopic holes from the wet side. A highly penetrating solvent may be used as an immersion liquid.Type: GrantFiled: June 2, 2009Date of Patent: March 26, 2013Assignee: The United States of America, as represented by the Secretary of the NavyInventors: F. Keith Perkins, Perry Skeath, Lee Johnson, John Peele, William Bassett
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Publication number: 20120271399Abstract: A method includes covering an ostium of a branch vessel emanating from a main vessel with a proximal landing zone of a high metal to vessel ratio landing zone stent-graft, wherein a metal to vessel ratio of the proximal landing zone when deployed is sufficiently high to encourage tissue ingrowth around the proximal landing zone yet is sufficiently low to ensure perfusion of the branch vessel through the proximal landing zone. The method further includes covering an aneurysm of the main vessel with an exclusion zone of the high metal to vessel ratio landing zone stent-graft, the exclusion zone being formed of graft material. By forming the exclusion zone of graft material, excellent exclusion of the aneurysm is achieved.Type: ApplicationFiled: April 19, 2011Publication date: October 25, 2012Applicant: Medtronic Vascular, Inc.Inventors: Keith Perkins, Samuel Robaina, Jeffery Argentine, Walter Bruszewski, Andrew Kiehl
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Publication number: 20110257725Abstract: A prosthesis comprises a tubular member that defines an inner lumen and has an inner surface and an outer surface, an outer member secured to the tubular member and covering at least a portion of the tubular member outer surface and forming an outer chamber therewith, and at least one valve in the tubular member to regulate or control fluid flow between the tubular member lumen and the chamber.Type: ApplicationFiled: April 20, 2010Publication date: October 20, 2011Applicant: Medtronic Vascular, Inc.Inventors: Jeffery Argentine, Mark Stiger, Keith Perkins
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Publication number: 20110182259Abstract: The disclosed subject matter describes a method, system, apparatus, and storage medium for interfacing multiple communication systems via a partitionable router. The router has at least two partitions, each partition having a subset of the router's resources allocated to it. Software programs are executed within each partition using their respective allocated resources. The resources, and any subset thereof, may be allocated non-exclusively, exclusively, and/or non-linearly to the partitions. The router receives information and determines the format of the information. The router identifies the receiving party and transforms the received information into a format compatible for the receiving party. The router then transmits the converted information to the receiving party, where the transmitting and/or receiving party is one of the software programs.Type: ApplicationFiled: January 26, 2011Publication date: July 28, 2011Applicant: AVFINITY, INCInventors: Stephen Perkins, Keith Perkins
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Publication number: 20110106623Abstract: The present invention relates to a method for allowing consumers to search for a provider of a specific type of professional service, typically legal. A method configured according to an embodiment of the present invention may involve supplying a location indicator in which to locate a service provider; supplying an area of the specific type of service which the user is interested in; being supplied a list of service providers working in the area of the specific type of service which the user is interested in and in or near the location indicator; being supplied a list of flat rate or fee prices for the service providers on the list and being supplied a list of the status of the service providers' participation in a charitable program. This method may be utilized by a web based system.Type: ApplicationFiled: October 29, 2009Publication date: May 5, 2011Inventor: Ronald Keith Perkins
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Publication number: 20100300887Abstract: A method of immersing an electrode in an electroplating solution while under vacuum, to substantially eliminate air and/or other gas from microscopic holes, cavities or indentations in the electrode. A method of electroplating an electrode in an electroplating solution including the application of a vacuum to the electrode while it is immersed in the electroplating solution to thereby substantially eliminate air and/or other gas from microscopic holes, cavities or indentations in the electrode. The electroplating liquid may be applied to only one side of the electrode (“the wet side”) in which case, sufficient time is allowed to pass for the immersion liquid to fill the microscopic through-holes, cavities or indentations in the electrode. An enhancement of this mode is to force liquid through the microscopic holes from the wet side. A highly penetrating solvent may be used as an immersion liquid.Type: ApplicationFiled: June 2, 2009Publication date: December 2, 2010Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Perry Skeath, F. Keith Perkins, Lee James Johnson, John R. Peele, William Bassett
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Patent number: 7776269Abstract: A sensing device having: a bottom electrode, a dielectric on the bottom electrode, a grid of nanoelectrodes on the dielectric, and a top electrode in electrical contact with the grid. A method of chemical or biological sensing comprising: providing a grid of nanoelectrodes; exposing the grid to fluid suspected of containing a chemical or biological analyte; and measuring a change in the capacitance and conductance of the grid.Type: GrantFiled: September 27, 2005Date of Patent: August 17, 2010Assignee: The United States of America as represented by the Secretary of the NavyInventors: Eric S. Snow, F. Keith Perkins, Eric Houser, Stan V. Stepnowski, R. Andrew McGill
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Publication number: 20100082623Abstract: Methods and system for item clustering are described. In one embodiment, compatibility data may be accessed for an item. The compatibility data may include a plurality of parent items with which the item is compatible. A particular parent item within the compatibility data may be identified. An item cluster for the item and an additional item may be created based on compatibility of the item and the additional item with the particular parent item within the compatibility data. A compatibility identifier may be associated with the item cluster. The compatibility identifier may be associated with the parent item. Additional methods and systems are disclosed.Type: ApplicationFiled: September 19, 2008Publication date: April 1, 2010Inventors: Aditya Arora, Keith Perkins, Brian M. Johnson, Richard D. Henderson, Swati Agarwal
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Publication number: 20100005194Abstract: The disclosed subject matter describes a method, system, apparatus, and storage medium for interfacing multiple communication systems, comprising the following steps. The interface receives information from the client, and determines the format of the information. The disclosed subject matter identifies the third party to receive the information and transforms the originally received information into a format compatible for the third party. The server or router then sends the converted information to the intended third party. The associated process allows communication between the client and third party in both directions.Type: ApplicationFiled: July 23, 2009Publication date: January 7, 2010Applicant: AVFINITY, INCInventors: Stephen Perkins, Keith Perkins
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Patent number: 7158067Abstract: An analog to digital converter includes a resistor-divider network including a plurality of resistors, an arbel channel circuit configured to generate a voltage sawtooth signal as an output, a dc-offset disposed to couple a node of the resistor-divider network and the arbel-channel circuit. The converter further includes a voltage reference circuit configured to generate a reference voltage, and a differential comparator configured to compare the voltage sawtooth signal with the reference voltage to produce a digital output signal corresponding to the voltage sawtooth signal. Method of converting an analog signal to a digital signal is also described.Type: GrantFiled: January 31, 2005Date of Patent: January 2, 2007Assignee: The United States of America as represented by the Secretary of the NavyInventors: Keir C. Lauritzen, Martin Peckerar, F. Keith Perkins, Angela M. Hodge-Miller
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Publication number: 20060249402Abstract: A sensing device having: a bottom electrode, a dielectric on the bottom electrode, a grid of nanoelectrodes on the dielectric, and a top electrode in electrical contact with the grid. A method of chemical or biological sensing comprising: providing a grid of nanoelectrodes; exposing the grid to fluid suspected of containing a chemical or biological analyte; and measuring a change in the capacitance and conductance of the grid.Type: ApplicationFiled: September 27, 2005Publication date: November 9, 2006Inventors: Eric Snow, F. Keith Perkins, Eric Houser, Stan Stepnowski, R. McGill
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Patent number: 6397483Abstract: A sight for use with a weapon for aiding a user to fire a projectile toward a target, the sight including a fixture carried by the weapon, a crosshair carried by the fixture and a plurality of sight elements immovably carried by the crosshair.Type: GrantFiled: November 20, 2000Date of Patent: June 4, 2002Inventor: Ronald Keith Perkins
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Patent number: 6392242Abstract: A fiducial beam monitor includes a patterned diode layer on a semiconducting substrate. An electrical field between the diode (or diodes) on the diode layer and the semiconducting substrate modulates the size of the depletion layer formed by the diode or diode. A high energy beam incident upon a diode on the diode layer produces a greater current than a high energy beam incident upon a non-diodic region of the same layer. In use, the beam monitor is typically fixed to the backside of a workpiece such as a semitransparent membrane being patterned by a focused high energy beam that is translated with respect to workpiece and attached monitor. The changes in current during translation are then correlated with the position of the beam with respect to the pattern on the diode layer.Type: GrantFiled: May 27, 1999Date of Patent: May 21, 2002Assignee: The United States of America as represented by the Secretary of the NavyInventors: F. Keith Perkins, Daniel McCarthy, Martin C. Peckerar, Christie R. K. Marrian, Eric S. Snow
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Publication number: 20020012937Abstract: Molecular recognition-based electronic sensor, which is gateless, depletion mode field effect transistor consisting of source and drain diffusions, a depletion-mode implant, and insulating layer chemically modified by immobilized molecular receptors that enables miniaturized label-free molecular detection amenable to high-density array formats. The conductivity of the active channel modulates current flow through the active channel when a voltage is applied between the source and drain diffusions. The conductivity of the active channel is determined by the potential of the sample solution in which the device is immersed and the device-solution interfacial capacitance. The conductivity of the active channel modulates current flow through the active channel when a voltage is applied between the source and drain diffusions. The interfacial capacitance is determined by the extent of occupancy of the immobilized receptor molecules by target molecules. Target molecules can be either charged or uncharged.Type: ApplicationFiled: June 22, 2001Publication date: January 31, 2002Inventors: Leonard M. Tender, Martin Peckerar, F. Keith Perkins, Stephanie J. Fertig, Eric S. Snow
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Patent number: 6154971Abstract: A sight for use with a weapon for aiding a user to fire a projectile toward a target, the sight including a fixture carried by the weapon, a crosshair carried by the fixture and a plurality of sight elements immovably carried by the crosshair.Type: GrantFiled: July 1, 1998Date of Patent: December 5, 2000Inventor: Ronald Keith Perkins