Patents by Inventor David L. Filkin

David L. Filkin 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).

  • Method for determining and controlling fiber luster properties
    Patent number: 5299133
    Abstract: A method of determining luster characteristics of fiber filaments utilizing a mathematical model of filament cross sectional shape and simulated impinging light to determine light distribution after interaction with the fiber and thereby determine luster properties. The method also includes a method for deriving individual filament cross sectional shapes of fibers in a bundle of touching filaments and for deriving therefrom other fiber properties and controlling the manufacturing parameters affecting such properties as well as luster properties.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: March 29, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Henry Kobsa, Barry Rubin, Stephen M. Shearer, David L. Filkin
  • Distributed parallel processing network wherein the connection weights are generated using stiff differential equations
    Patent number: 5046020
    Abstract: A parallel distributed processing network of the back propagation type is disclosed in which the weights of connection between processing elements in the various layers of the network are determined in accordance with the set of steady solutions of the stiff differential equations governing the relationship between the layers of the network.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: September 3, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: David L. Filkin