Patents by Inventor William J. Derkach

William J. Derkach 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).

  • Product package having reliable openability
    Patent number: 6203867
    Abstract: A plastic packaging material which, when formed as a package having seams, will provide a predictable line of failure along a seam when the package is opened to prevent the package from tearing down the side. The predictable failure path is provided through a lamination process involving specific resins or blends of resins laminated in three (or more) layers in which an extruded inner layer forms a weak inner bond wholly within that inner layer to create the predictable line of failure and in which the process of forming the material does not inhibit processing speed, efficiency, and economics of materials used to provide this reliable openability.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: March 20, 2001
    Assignees: Recot, Inc., Bryce Corporation
    Inventors: William J. Derkach, Robert F. Hawkins, Bruce Kinsman
  • Product package having reliable openability
    Patent number: 5829227
    Abstract: A plastic packaging material which, when formed as a package having seams, will provide a predictable line of failure along a seam when the package is opened to prevent the package from tearing down the side. The predictable failure path is provided through a lamination process involving specific resins or blends of resins laminated in three (or more) layers in which an extruded inner layer forms a weak inner bond wholly within that inner layer to create the predictable line of failure and in which the process of forming the material does not inhibit processing speed, efficiency, and economics of materials used to provide this reliable openability.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: November 3, 1998
    Assignees: Recot, Inc., Bryce Corporation
    Inventors: William J. Derkach, Robert F. Hawkins, Bruce Kinsman
  • Product package having reliable openability
    Patent number: 5689935
    Abstract: A plastic packaging material which, when formed as a package having seams, will provide a predictable line of failure along a seam when the package is opened to prevent the package from tearing down the side. The predictable failure path is provided through a lamination process involving specific resins or blends of resins laminated in three (or more) layers in which an extruded inner layer forms a weak inner bond wholly within that inner layer to create the predictable line of failure and in which the process of forming the material does not inhibit processing speed, efficiency, and economics of materials used to provide this reliable openability.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: November 25, 1997
    Assignees: Recot, Inc., Bryce Corporation
    Inventors: William J. Derkach, Robert E. Hawkins, Bruce Kinsman
  • Method of forming packaging compositions
    Patent number: 5378414
    Abstract: A process to produce a packaging film through the addition, in a unique continuous in-line application, of interactive/barrier material with a sealant layer disposed thereover during the packaging film production prior to the tenter operation.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: January 3, 1995
    Assignee: Recot, Inc.
    Inventor: William J. Derkach