Patents by Inventor Charles E. McDonald

Charles E. McDonald 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).

  • Multi-toothed dispenser, comb applicator and bottle
    Patent number: 5289833
    Abstract: A device for dispensing and applying chemicals onto hair or other multi-fiber composition, consisting of a deformable container, a comb having a hollow spine in fluid communication with the deformable container, and a separator with a dispenser in fluid communication with the hollow spine of the comb.
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: March 1, 1994
    Inventor: Charles E. McDonald