Patents by Inventor David C. Bonham

David C. Bonham 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).

  • Chromatic music notation system
    Patent number: 6831219
    Abstract: The harmonic structure of music is visually represented by establishing a correlation of each degree of the diatonic scale with a specified color and applying that correlation to a musical composition so that each note of the composition is represented by the respective color uniquely identified with its scale degree.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: December 14, 2004
    Inventor: David C. Bonham
  • Hair seizure and implantation method
    Patent number: 3980090
    Abstract: A method of seizing and implanting fiber in a base includes the steps of positioning a number of fibers together, moving a hollow needle into contact with the fiber ends so that a fiber end is received into the hollow of the needle, and inserting the needle into the base to implant therein the fiber carried by the needle.
    Type: Grant
    Filed: September 25, 1974
    Date of Patent: September 14, 1976
    Inventor: David C. Bonham