Patents by Inventor David H. Bartlett

David H. Bartlett 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).

  • Disposable mat with compressible ridge
    Patent number: 5128189
    Abstract: The invention described and claimed in the present application is of a disposable mat for protecting floors or other surfaces against spillage or droppage of liquid substances. The mat has a top absorbent layer, a bottom liquid impervious layer and a compressible ridge about the periphery. The compressible ridge of the mat of the invention acts as an containment dam for non-absorbent liquid. The ridge is sufficiently compressible to permit equipment on rollers to be moved across the mat.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: July 7, 1992
    Inventor: David H. Bartlett