Patents by Inventor Derrick D. Rose

Derrick D. Rose 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: 5231729
    Abstract: A tilers trowel having at least one edge which is notched and wherein adjustment means is provided for limiting the depth of material which can be applied, i.e. by adjusting the size of the notching. In one embodiment the trowel comprises two plate-like members which are cooperable and adjustable slidably with respect to one another. One or both members may have notching and preferably the plate members are rectangular with notching to all four edges. A handle is secured to one plate member.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: August 3, 1993
    Inventor: Derrick D. Rose