Patents by Inventor David W. Armstrong
David W. Armstrong 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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Patent number: 11998243Abstract: A bone fastener comprises a head including a first receiver that defines an implant cavity and a second receiver that defines an implant cavity. The first receiver is connected to the second receiver. A shaft is aligned with the first receiver and configured to engage tissue. A part is disposed within the implant cavity of the second receiver and movable relative thereto in a selected plane of a body. Systems, surgical instruments, spinal constructs, implants and methods are disclosed.Type: GrantFiled: July 2, 2020Date of Patent: June 4, 2024Assignee: Warsaw Orthopedic, Inc.Inventors: Dustin Bobbitt, Rex W. Armstrong, David A. Mire, William Alan Rezach
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Patent number: 11944354Abstract: A spinal construct includes a coupling member including a first mating surface engageable with an existing fastener implant. The existing fastener implant defines a cavity configured for disposal of an existing spinal rod implant. A connector is engageable with the existing fastener implant and has a rod extending therefrom. A locking member is engageable with a second mating surface of the coupling member. Systems, surgical instruments, implants and methods are disclosed.Type: GrantFiled: February 1, 2021Date of Patent: April 2, 2024Assignee: Warsaw Orthopedic, Inc.Inventors: Rex W. Armstrong, David A. Mire
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Publication number: 20120221044Abstract: Systems and methods of applying dynamic force to tissues to promote healing. Systems of this invention may be applied to tissue to bolster the tissues, move the tissues, or expand the tissue. Systems of this invention may also include a tension indication feature, allowing measured application of dynamic force to the tissue.Type: ApplicationFiled: May 9, 2012Publication date: August 30, 2012Applicant: Canica Design, Inc.Inventors: Matthew E. Archibald, Alden Rattew, Timothy J. Maxwell, Leonard G. Lee, James P. Henderson, Michael T. O'Malley, Julia Van Eyk Barry, David W. Armstrong
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Patent number: 7140744Abstract: A lamp assembly for use in a pressure sensitive paint measuring system, such as for measuring pressure on a test air vehicle using pressure sensitive paint, is constructed and configured to provide (1) exceptional cooling for the various optical elements and the housing, (2) a combination of filters that minimizes heat load on the interference filter, yet provides a high beam intensity at the desired wavelength, (3) a mounting structure for the lamp assembly that allows the lamp assembly to be accurately aimed and positioned with little translation of the output aperture, and (4) easy access to the internal components, including the bulb-reflector assembly and optical elements.Type: GrantFiled: September 30, 2003Date of Patent: November 28, 2006Assignee: The Boeing CompanyInventors: David W. Armstrong, John F. Laramie, John F. Donovan, Steven R. Sutton, Robert P. Chase
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Publication number: 20040214342Abstract: Semiconductor materials having a porous texture are modified with a recognition element and produce a photoluminescent response on exposure to electromagnetic radiation. The recognition elements, which can be selected from biomolecular, organic and inorganic moieties, interact with a target analyte to produce a modulated photoluminescent response, as compared with that of semiconductor materials modified with a recognition element only.Type: ApplicationFiled: May 19, 2004Publication date: October 28, 2004Inventors: David W. Armstrong, Martine L. Lafrance
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Patent number: 6780649Abstract: Semiconductor materials having a porous texture are modified with a recognition element and produce a photoluminescent response on exposure to electromagnetic radiation. The recognition elements, which can be selected from biomolecular, organic and inorganic moieties, interact with a target analyte to produce a modulated photoluminescent response, as compared with that of semiconductor materials modified with a recognition element only.Type: GrantFiled: August 27, 2002Date of Patent: August 24, 2004Assignee: Iatroquest CorporationInventors: David W. Armstrong, Martine L. Lafrance
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Patent number: 6630356Abstract: Semiconductor materials having a porous texture are modified with a recognition element and produce a photoluminescent response on exposure to electromagnetic radiation. The recognition elements, which can be selected from biomolecular, organic and inorganic moieties, interact with a target analyte to produce a modulated photoluminescent response, as compared with that of semiconductor materials modified with a recognition element only.Type: GrantFiled: July 9, 1999Date of Patent: October 7, 2003Assignee: IatroQuest CorporationInventors: David W. Armstrong, Martine L. Lafrance
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Publication number: 20030129764Abstract: Semiconductor materials having a porous texture are modified with a recognition element and produce a photoluminescent response on exposure to electromagnetic radiation. The recognition elements, which can be selected from biomolecular, organic and inorganic moieties, interact with a target analyte to produce a modulated photoluminescent response, as compared with that of semiconductor materials modified with a recognition element only.Type: ApplicationFiled: August 27, 2002Publication date: July 10, 2003Inventors: David W. Armstrong, Martine L. Lafrance
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Patent number: 5830507Abstract: A living skin replacement for the treatment of partial-thickness and full-thickness skin injuries, such as burns and other wounds, consists of a slurry of cell-coated microspheres which can be applied to the skin injury in much the same manner as a paste or salve. The skin implant can accommodate contour variations across the often extensive area of a skin injury and does not require the use of stapling, suturing or other attachment methods. The microspheres can be formed of a variety of materials that are biocompatible and resorbable in vivo.Type: GrantFiled: November 18, 1994Date of Patent: November 3, 1998Assignee: National Research Council of CanadaInventor: David W. Armstrong
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Patent number: 4906577Abstract: There is disclosed a cell culture apparatus particularly suitable for the culture of viable, shear sensitive cells, either grown in suspension or attached to a substrate such as microcarrier beads. The apparatus comprises a cell culture compartment and a compensation chamber disposed thereabove and serving to maintain sterile conditions for the cell culture compartment operating in a zero-headspace mode. The cell culture compartment comprises a gas exchange tube connected to an outside source of gas and defining a downflow zone and a central upflow zone in the cell culture compartment. An Archimedean screw-type auger is installed coaxially in the cell culture compartment to provide a circulating flow of liquid therein. The turbulence of the flow is reduced by the provision of an upper and lower flow guide surface.Type: GrantFiled: October 13, 1988Date of Patent: March 6, 1990Assignee: Canadian Patents and Development Ltd.Inventors: David W. Armstrong, L. Perry Fleming, Deborah G. Grenzowski
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Patent number: 4720457Abstract: This invention is concerned with the selective production of ethyl acetate and acetaldehyde by microorganisms, for example of the genus Candida and of the genus Hansenula. Ethyl acetate or acetaldehyde may be produced by altering the concentration of ethanol in the medium.Type: GrantFiled: June 9, 1986Date of Patent: January 19, 1988Assignee: Canadian Patents and Development Ltd.Inventors: David W. Armstrong, Stanley M. Martin, Hiroshi Yamazaki