Patents by Inventor David A. Webb
David A. Webb 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: 20210307820Abstract: Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative toType: ApplicationFiled: June 16, 2021Publication date: October 7, 2021Inventors: Christopher HANCOCK, Steven MORRIS, Patrick BURN, Louis TURNER, George ULLRICH, David WEBB
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Publication number: 20210307821Abstract: Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative toType: ApplicationFiled: June 16, 2021Publication date: October 7, 2021Inventors: Christopher HANCOCK, Steven MORRIS, Patrick BURN, Louis TURNER, George ULLRICH, David WEBB
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Publication number: 20210307822Abstract: Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative toType: ApplicationFiled: June 16, 2021Publication date: October 7, 2021Inventors: Christopher HANCOCK, Steven MORRIS, Patrick BURN, Louis TURNER, George ULLRICH, David WEBB
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Publication number: 20210307819Abstract: Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative toType: ApplicationFiled: June 16, 2021Publication date: October 7, 2021Inventors: Christopher HANCOCK, Steven MORRIS, Patrick BURN, Louis TURNER, George ULLRICH, David WEBB
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Publication number: 20210307818Abstract: Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative toType: ApplicationFiled: June 16, 2021Publication date: October 7, 2021Inventors: Christopher HANCOCK, Steven Morris, Patrick Burn, Louis Turner, George Ullrich, David Webb
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Publication number: 20210298823Abstract: An electrosurgical instrument for delivering radiofrequency (RF) and/or microwave energy into biological tissue that is also configured to obtain images of a treatment site performing invasive electrosurgery. In one aspect, the invention provides a chip-based images sensor at the distal end of a cable that also conveys energy for electrosurgery. In another aspect, both light emitting and light sensing element are mounted at the distal end of a probe for insertion through the instrument channel of a surgical scoping device, whereby optical signals do not need to be conveyed through the scoping device, because the transition from electrical signals to optical radiation and back to electrical signals occurs at the distal end.Type: ApplicationFiled: July 26, 2019Publication date: September 30, 2021Inventors: Christopher Paul HANCOCK, Shaun PRESTON, Patrick BURN, William TAPLIN, Aeron W. JONES, Sandra SWAIN, George ULLRICH, David WEBB
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Patent number: 11058483Abstract: Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative toType: GrantFiled: October 18, 2016Date of Patent: July 13, 2021Assignee: CREO MEDICAL LIMITEDInventors: Christopher Hancock, Steven Morris, Patrick Burn, Louis Turner, George Ullrich, David Webb
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Patent number: 11021933Abstract: A well hole cleaning tool includes a plurality of tubular subcomponents arranged in a string-like fashion, having a plurality of flapper valves disposed above a notched collar, a wash pipe shoe, a bit and a mill. An upper stabilizer is disposed above a lower stabilizer which in turn is disposed above a sand screen. When in operation, the tool creates a vacuum at the lower end which facilitates flow of debris and waste water upward and out of the well hole.Type: GrantFiled: September 13, 2018Date of Patent: June 1, 2021Inventor: David A. Webb
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Patent number: 10699606Abstract: An illuminated sign comprises a source of blue light; a quantum dot-containing film that produces green light when illuminated by the source of blue light; and, a patterned blue cutoff filter in optical communication with the quantum dot-containing film configured to allow a mixture of excess blue light from the source of blue light and green light from the quantum dot-containing film to pass through the pattern. The mixture of blue light and green light produces a pseudo white light. The illuminated sign may thus comprise pseudo white letters and/or graphics on a luminous green background.Type: GrantFiled: May 11, 2017Date of Patent: June 30, 2020Assignee: Nanoco Technologies Ltd.Inventors: David Webb, Mark Saunders, James Harris, Ross Mera-Pirttijarvi
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Publication number: 20200200704Abstract: Disclosed are methods and devices for biomolecular detection, comprising a nanopipette, exemplified as a hollow inert, non-biological structure with a conical tip opening of nanoscale dimensions, suitable for holding an electrolyte solution which may contain an analyte such as a protein biomolecule to be detected as it is passed through the tip opening. Biomolecules are detected by specific reaction with peptide ligands chemically immobilized in the vicinity of the tip. Analytes which bind to the ligands cause a detectible change in ionic current. A sensitive detection circuit, using a feedback amplifier circuit, and alternating voltages is further disclosed. Detection of IL-10 at a concentration of 4 ng/ml is also disclosed, as is detection of VEGF.Type: ApplicationFiled: March 11, 2019Publication date: June 25, 2020Inventors: Miloslav Karhanek, Chris David Webb, Senkei Umehara, Nader Pourmand
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Publication number: 20200182827Abstract: Disclosed are methods and devices for biomolecular detection, comprising a nanopipette, exemplified as a hollow inert, non-biological structure with a conical tip opening of nanoscale dimensions, suitable for holding an electrolyte solution which may contain an analyte such as a protein biomolecule to be detected as it is passed through the tip opening. Biomolecules are detected by specific reaction with peptide ligands chemically immobilized in the vicinity of the tip. Analytes which bind to the ligands cause a detectible change in ionic current. A sensitive detection circuit, using a feedback amplifier circuit, and alternating voltages is further disclosed. Detection of IL-10 at a concentration of 4 ng/ml is also disclosed, as is detection of VEGF.Type: ApplicationFiled: September 30, 2019Publication date: June 11, 2020Inventors: Miloslav Karhanek, Chris David Webb, Senkei Umehara, Nader Pourmand
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Patent number: 10662076Abstract: A fluid-filtering apparatus includes an upper cartridge and a lower cartridge. The upper cartridge includes a fluid-filtering first tube that surrounds and extends along an axis and that defines a first-tube cavity. An axially-extending fluid-filtering second tube is located within the first-tube cavity and defines a second-tube cavity. The lower cartridge includes an axially-extending third tube that defines a third cavity. An axially-extending fluid-filtering fourth tube, of the lower cartridge, is located within the third cavity and defines a fourth-tube cavity. The upper and lower cartridges are coupled together and contained within a casing.Type: GrantFiled: April 16, 2019Date of Patent: May 26, 2020Assignee: CARICO INTERNATIONAL, INC.Inventors: Richard R. Cappadona, Ronald David Webb
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Publication number: 20200157896Abstract: A diverter assembly may include a diverter body assembly. The diverter body assembly may also include a diverter body, the diverter body fluidly coupled to the annulus of a wellbore via a casing or riser, and the diverter body including one or more diverter outlet ports fluidly coupled to the annulus of the wellbore. The diverter body assembly may also include an upper packer assembly. The upper packer assembly may include a packer sleeve, the packer sleeve mechanically coupled to the diverter body. The packer sleeve may include one or more breach lock slots. The upper packer assembly may also include an upper packer body having one or more packer breach lock tabs engaged with the breach lock slots of the packer sleeve. The diverter assembly may also include a diverter support housing, the diverter support housing coupled to the diverter body assembly.Type: ApplicationFiled: January 25, 2020Publication date: May 21, 2020Applicant: Equipment Resources International, Inc.Inventors: David Webb, Richard Romero
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Patent number: 10652353Abstract: Technologies for communication with direct data placement include a number of computing nodes in communication over a network. Each computing node includes a many-core processor having an integrated host fabric interface (HFI) that maintains an association table (AT). In response to receiving a message from a remote device, the HFI determines whether the AT includes an entry associating one or more parameters of the message to a destination processor core. If so, the HFI causes a data transfer agent (DTA) of the destination core to receive the message data. The DTA may place the message data in a private cache of the destination core. Message parameters may include a destination process identifier or other network address and a virtual memory address range. The HFI may automatically update the AT based on communication operations generated by software executed by the processor cores. Other embodiments are described and claimed.Type: GrantFiled: September 24, 2015Date of Patent: May 12, 2020Assignee: Intel CorporationInventors: James Dinan, Venkata Krishnan, Srinivas Sridharan, David A. Webb
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Patent number: 10557324Abstract: A diverter assembly may include a diverter body assembly. The diverter body assembly may also include a diverter body, the diverter body fluidly coupled to the annulus of a wellbore via a casing or riser, and the diverter body including one or more diverter outlet ports fluidly coupled to the annulus of the wellbore. The diverter body assembly may also include an upper packer assembly. The upper packer assembly may include a packer sleeve, the packer sleeve mechanically coupled to the diverter body. The packer sleeve may include one or more breach lock slots. The upper packer assembly may also include an upper packer body having one or more packer breach lock tabs engaged with the breach lock slots of the packer sleeve. The diverter assembly may also include a diverter support housing, the diverter support housing coupled to the diverter body assembly.Type: GrantFiled: August 5, 2016Date of Patent: February 11, 2020Assignee: EQUIPMENT RESOURCES INTERNATIONAL, INC.Inventors: David Webb, Richard Romero
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Publication number: 20190374285Abstract: An energy conveying structure for invasive electrosurgery that provide for combined delivery of (i) RF or microwave electromagnetic energy for tissue treatment (e.g. ablation, coagulation or cutting), and (ii) optical radiation within a common structure that may form an instrument cable of a surgical scoping device. The structure resembles a hollow coaxial transmission line with an optical channel formed within it. The optical channel can lie within a passage that is formed within the inner conductive layer or within other layers of the coaxial transmission. The structure may be used to form an electrosurgical device capable of delivering RF/microwave EM energy, optical radiation and ultrasonic signals to a treatment site along an instrument cable of a surgical scoping device.Type: ApplicationFiled: March 29, 2018Publication date: December 12, 2019Inventors: Christopher Paul HANCOCK, Shaun PRESTON, William TAPLIN, Sam JAMES, George ULLRICH, David WEBB
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Patent number: 10380181Abstract: In some examples, a randomization searching engine is described that enables randomized searching and recommendation of authorized user profiles. The randomization searching engine implements a search routine that identifies search results by prioritizing authorized user profiles, bucketizing authorized user profiles, categorizing authorized user profiles results, collating authorized user profiles, and generating a set of search results.Type: GrantFiled: February 5, 2018Date of Patent: August 13, 2019Assignee: HCA Holdings, Inc.Inventors: John William Benton Morrow, Deborah Reiner, Lars Erik Larsen, Jason Draper Wood, Kari Longoria, David Webb
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Publication number: 20190241442Abstract: A fluid-filtering apparatus includes an upper cartridge and a lower cartridge. The upper cartridge includes a fluid-filtering first tube that surrounds and extends along an axis and that defines a first-tube cavity. An axially-extending fluid-filtering second tube is located within the first-tube cavity and defines a second-tube cavity. The lower cartridge includes an axially-extending third tube that defines a third cavity. An axially-extending fluid-filtering fourth tube, of the lower cartridge, is located within the third cavity and defines a fourth-tube cavity. The upper and lower cartridges are coupled together and contained within a casing.Type: ApplicationFiled: April 16, 2019Publication date: August 8, 2019Applicant: CARICO INTERNATIONAL, INC.Inventors: Richard R. Cappadona, Ronald David Webb
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Publication number: 20190216541Abstract: Skin treatment apparatus comprising an energy applicator structure configured to establish heating or ablation at a predetermined and controllable (i.e. selectable) depth below a surface of skin tissue with which it is in contact. The applicator structure may receive a cooling medium and microwave frequency electromagnetic energy, which provide a combined treatment effect that results in heating or ablation in a zone beneath the skin surface. The applicator may be a waveguide (e.g. waveguide horn antenna) with internal shielding configured to provide a substantially uniform heating effect. The applicator may include a thermal camera to monitor treatment.Type: ApplicationFiled: May 24, 2017Publication date: July 18, 2019Inventors: Christopher Paul HANCOCK, Paul HOROWITZ, George ULLRICH, David WEBB
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Publication number: 20190176349Abstract: A utility knife includes a handle base and a neck connected to the handle base for pivotal movement relative to the handle base between a closed position and an open position. The knife also includes a utility blade holder slidingly carried by the neck for sliding movement relative to the neck between a retracted position and an extended position. A utility blade is carried by the blade holder such that movement of the utility blade holder between its extended and retracted positions moves the utility blade between an exposed position in which a cutting edge of the blade is exposed, and a protected position in which the cutting edge of the blade is protected by the neck.Type: ApplicationFiled: February 15, 2019Publication date: June 13, 2019Inventors: FREDERICK S. HANSEN, DAVID A. WEBB, STEPHEN ROWLAY