Patents by Inventor Derrick Glenn

Derrick Glenn 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).

  • Portable stairway railing device
    Patent number: 5369921
    Abstract: A portable stairway railing device is disclosed comprising a frame structure having several support braces attachable to the stairway surface at the rearward section of the individual step. The support braces allow for selective variance of the width, depth, and height for fitting variously sized stairways. On the top portion of the frame structure is disposed a hand rail.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: December 6, 1994
    Inventor: Derrick Glenn