Patents by Inventor Laurence M. Whitty

Laurence M. Whitty 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).

  • Fire stop and its use
    Patent number: 6820382
    Abstract: The invention provides a device for use as a fire stop, which comprises a material that intumesces on exposure to heat, a patch of an adhesive connected to a surface of the material and a liner that covers the adhesive and is readily detachable from the adhesive by means of a pull, to expose the adhesive.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: November 23, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: David C. Chambers, Laurence M. Whitty