Patents by Inventor Robert E. Banks

Robert E. Banks 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, purse or pocket size gemstone cleaner
    Patent number: 5042954
    Abstract: This application relates to a means and method for cleaning diamonds and other gemstones to restore their shine. It is designed as a portable gemstone cleaning device to be carried by a person such that it would be usable at any time. The device comprises a container partially filled with a gem cleaning solution and having an applicator mounted in the container to apply the solution to a gemstone.
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: August 27, 1991
    Inventor: Robert E. Banks