Patents by Inventor David A. Ray

David A. Ray 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).

  • Transparent measuring device with enhanced viewing windows
    Patent number: 9032634
    Abstract: A tool for measuring, marking, or cutting material, the tool formed of a rigid sheet of transparent material having a plurality of lines formed thereon, and a plurality of windows formed in the lines to enable viewing of material underlying the tool. The windows can be outlined in opaque lines, and alternating windows can be filled with contrasting transparent colors.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: May 19, 2015
    Assignee: Rulersmith IP, Inc.
    Inventors: Elmer J. Norgard, David A. Ray
  • Transparent measuring device with enhanced viewing windows
    Patent number: 8904661
    Abstract: A tool for measuring, marking, or cutting material, the tool formed of a rigid sheet of transparent material having a plurality of lines formed thereon, and a plurality of windows formed in the lines to enable viewing of material underlying the tool. The windows can be outlined in opaque lines, and alternating windows can be filled with contrasting transparent colors.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: December 9, 2014
    Assignee: Rulersmith IP, Inc.
    Inventors: Elmer J. Norgard, David A. Ray
  • Universal door handle sanitizer device
    Patent number: 7989779
    Abstract: A universal ultraviolet light sanitation device that can be mounted to existing doors and the like wherein the UV light sources are positioned for treatment of a door knob or handle. The device provides for opposing UV lights in a light emitting housing around the doorknob. Sensor means within the assembly determines the non-presence of the user's hand and activates the UV lights before and after handle contact assuring sanitation of the light exposed non-porous surfaces.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: August 2, 2011
    Inventors: David A. Ray, Martin M. Abitzsch
  • Non-slip measuring tool and method of making
    Patent number: 7509745
    Abstract: A tool (10)for measuring, marking, or cutting material, the tool formed of a rigid sheet of transparent material (11) having a plurality of lines formed thereon, and a transparent, non-removable, slip-resistant coating (17) applied to a working surface of the rigid sheet to resist slipping of the tool when applied to the material.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: March 31, 2009
    Assignee: Rulersmith, Inc.
    Inventors: Margaret D. Schafer, legal representative, Margaret D. Schafer, Ansel Kelman, David A. Ray, Randal D. Schafer