Patents by Inventor Linda L. Kenworthy

Linda L. Kenworthy 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).

  • Thermoplastic foam insulation and drainage board in below-grade applications
    Patent number: 5615525
    Abstract: Disclosed is a rigid, thermoplastic foam board useful in below-grade residential and commercial insulating and drainage applications. The board defines a plurality of oriented channels extending therein along the board. The channel extends into the board through a relatively narrow first opening at the face into a relatively wide first zone. The channel then further extends into the board from the first zone through a relatively narrow second opening into a second zone. The board provides superior water drainage, and protects a below-grade building wall from excessive moisture. Further disclosed is a method for using the foam board in below-grade applications.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: April 1, 1997
    Assignee: The Dow Chemical Company
    Inventor: Linda L. Kenworthy
  • Thermoplastic foam insulation and drainage board and method of using in below-grade applications
    Patent number: 5511346
    Abstract: A rigid, thermoplastic foam board useful in below-grade residential and commercial insulating and drainage applications. The board defines a plurality of oriented channels extending therein along the board. The channel extends into the board through a relatively narrow first opening at the face into a relatively wide first zone. The channel then further extends into the board from the first zone through a relatively narrow second opening into a second zone. The board provides superior water drainage, and protects a below-grade building wall from excessive moisture. Further disclosed is a method for using the foam board in below-grade applications.
    Type: Grant
    Filed: August 24, 1994
    Date of Patent: April 30, 1996
    Assignee: The Dow Chemical Company
    Inventor: Linda L. Kenworthy