Patents by Inventor Mark A. Semak

Mark A. Semak 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).

  • Patent number: 5226456
    Abstract: Improved equipment for supporting a length of flexible drainage hose or piping to extend along a substantially uniform gradient that includes the combination of an open ended flexible tubular element or sleeve for receiving and supporting therein the intermediate segment of a selected drainage hose or piping, with a length of cord or line aligned with and carrying the flexible tubular element or sleeve depending therefrom and therealong. The respective ends of the cord or line extend beyond the respective open ends of the tubular element or sleeve for securing the cord or line in sufficiently taut relation and in an orientation to establish a substantially uniform gradient for the supported length of flexible drainage hose or piping.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: July 13, 1993
    Inventor: Mark A. Semak
  • Patent number: D386741
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: November 25, 1997
    Inventor: Mark A. Semak