Patents by Inventor Leon Edwards

Leon Edwards 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).

  • Patent number: 5874498
    Abstract: This invention relates to improved vinyl acetate-ethylene emulsions for use in formulating high performance paints without the need for coalescing solvents. These latexes are based on copolymers of vinyl acetate and ethylene optionally containing a comonomer such as an alkyl acrylate or methacrylate. Paints formulated from these latexes, without coalescing solvents, are characterized as having substantially no insolubles, the resin particles in the emulsion are characterized as having a particle size of from 0.2 to 0.35 microns measured as weight average by capillary hydrodynamic fractionation. In other words, the copolymer particles are characterized in that a small percentage, up to about 5% of the total number of particles in the latex, have an average size greater than 0.35 microns, and a small percentage have a size smaller than about 0.2 microns. Further the resin particles are essentially monodisperse.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: February 23, 1999
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Christian Leonard Daniels, Leon Edward Newman
  • Patent number: 5737555
    Abstract: A method for rapid positioning of a display pointer on a display screen may be accomplished by establishing a preferred order of display pointer movement between widgets when the particular screen location of the widgets is known. Having established the preferred order, the display pointer is automatically repositioned based on the preferred order when an input stimulus is activated. The input stimulus may be activated by a function of the keyboard, mouse, or any other input devices that may be used in association with a computer.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: April 7, 1998
    Assignee: International Business Machines Corporation
    Inventors: Leon Edward Gregg, William Jaaskelainen, Jr.
  • Patent number: 4756317
    Abstract: Packed tobacco leaves are pretreated by microwave generators with control sensors preliminary to separation.
    Type: Grant
    Filed: July 9, 1986
    Date of Patent: July 12, 1988
    Assignee: Hallmark Fabricators, Inc.
    Inventor: Leon Edwards
  • Patent number: 4600024
    Abstract: Packed tobacco leaves are pretreated by microwave generators with control sensors preliminary to separation.
    Type: Grant
    Filed: June 15, 1983
    Date of Patent: July 15, 1986
    Inventor: Leon Edwards