Patents by Inventor David Levan

David Levan 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).

  • LAGERSTROEMIA PLANT NAMED 'LIPIPETZ'
    Publication number: 20180242490
    Abstract: A new and distinct Lagerstroemia cultivar named ‘Lipipetz’ which is characterized by the combination of a compact, freely-branching growth habit with a generally round shape, dense foliage, an abundance of pink flowers borne on terminal panicles from summer into early fall, and the stability of these characteristics from generation to generation.
    Type: Application
    Filed: February 23, 2017
    Publication date: August 23, 2018
    Inventor: David A. Levan, JR.
  • Multi-element magnetic receiver for interference suppression and signal enhancement
    Patent number: 8577298
    Abstract: A system and method for enhancing a magnetic communication signal is provided. A multi-element receiver is used to generate a plurality of input signals. A set of weights is generated using, for example, a calculated covariance of the plurality of input signals, and applied to the signals. The weights are used to generate a single output signal representing a weighted sum of the input signals.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: November 5, 2013
    Assignee: Lockheed Martin Corporation
    Inventors: Thomas M. Parks, Richard Wasiewicz, David LeVan
  • MULTI-ELEMENT MAGNETIC RECEIVER FOR INTERFERENCE SUPPRESSION AND SIGNAL ENHANCEMENT
    Publication number: 20120322385
    Abstract: A system and method for enhancing a magnetic communication signal is provided. A multi-element receiver is used to generate a plurality of input signals. A set of weights is generated using, for example, a calculated covariance of the plurality of input signals, and applied to the signals. The weights are used to generate a single output signal representing a weighted sum of the input signals.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 20, 2012
    Applicant: Lockheed Martin Corporation
    Inventors: Thomas M. Parks, Richard Wasiewicz, David LeVan
  • MULTI-CONDUCTOR TRANSMIT ANTENNA FOR MAGNETIC COMMUNICATION SYSTEMS
    Publication number: 20120071121
    Abstract: A magnetic communication system utilizing a multi-conductor transmit antenna is provided. Each of the conductors is supplied with an identical signal such that the magnetic fields generated by each conductor add together to create a like signal having an increased strength. Individual energy barriers are operatively connected to each conductor element in order to limit the current supplied to each conductor to intrinsically safe levels.
    Type: Application
    Filed: September 22, 2010
    Publication date: March 22, 2012
    Applicant: Lockheed Martin Corporation
    Inventor: David LeVan
  • Gladhand grip
    Publication number: 20060186661
    Abstract: A gladhand grip device (10) is adapted to be attached to one portion (11) of a gladhand coupling and to surround a marginal end portion of a hose (H) connected to the coupling portion to allow an operator to more easily apply a torque to the coupling portion when connecting or disconnecting the coupling and to protect the hose marginal end portion against acute flexure.
    Type: Application
    Filed: February 22, 2006
    Publication date: August 24, 2006
    Inventor: David Levan
  • plant named ‘Lipipetz’
    Patent number: PP29781
    Abstract: A new and distinct Lagerstroemia cultivar named ‘Lipipetz’ which is characterized by the combination of a compact, freely-branching growth habit with a generally round shape, dense foliage, an abundance of pink flowers borne on terminal panicles from summer into early fall, and the stability of these characteristics from generation to generation.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: October 30, 2018
    Inventor: David A. Levan, Jr.