Patents by Inventor Hossein Jafarmadar

Hossein Jafarmadar 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: 10294721
    Abstract: Disclosed is a ladder assembly configured for being supported on narrow surfaces. The ladder assembly may include a receiving structure that is configured to receive a narrow structure such as a tree or pole, for safely leaning the ladder assembly against the narrow structure. The assembly may include an arm that is operable between an open and closed position for securing the narrow structure in the receiving structure. The assembly may include an anchor to secure the ladder to a proximal surface that supports the ladder.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: May 21, 2019
    Inventor: Hossein Jafarmadar
  • Patent number: 6178586
    Abstract: A hand-held trowel that includes a first and second adjoining edges that have a plurality of notches disposed therein that is used to provide grooves in cementious material, said trowel used for spreading cementious material and said trowel including a third edge extending away from the trowel body having sufficient rigidity and strength for prying up a ceramic tile for use as a margin trowel. The trowel also includes a handle for grasping by hand that is rigidly attached to the trowel body which may include a level indicating device to tell with an air bubble and liquid whether or not the fourth edge of the trowel, which is straight when placed on the surface of a tile, is level relative to the gravitational field of the earth. A trowel for use with tile, brick, block and plaster may also include first and second level indicators mounted in the handle or on the trowel blade that provides for levels of indication or straightness relative to the earth's surface in two different planes.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: January 30, 2001
    Inventor: Hossein Jafarmadar