Patents by Inventor Leo P. Coyer

Leo P. Coyer 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: 7635233
    Abstract: A retractable marking device comprising a casing holding a retractor, an engagement element, a fastener, and a barrel. The engagement element holds marking instruments having a variety of diameters, wherein the marking instruments may comprise, for example, pencils, pens, chalk, and the like. Additionally, the engagement element is secured to the retractor, wherein the retractor comprises a coil retractably wound around a reel, such that the engagement element can be repeatedly extended from and retracted to the casing. The fastener secures the device to a user's garb or working paraphernalia for ready accessibility. Furthermore, the barrel holds a sharpener, wherein the sharpener sharpens the marking instrument. Additionally, depending upon the particular embodiment, the retractable marking device may sharpen the marking instrument either manually or mechanically.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: December 22, 2009
    Inventor: Leo P. Coyer