Patents by Inventor Ralph LeRoy Hollis, JR.

Ralph LeRoy Hollis, JR. 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).

  • Magnetic levitation haptic interface system
    Patent number: 8497767
    Abstract: This invention discloses a haptic interface system that uses Lorentz forces to provide magnetic levitation for a handle which can be manipulated by a person, typically a computer user.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: July 30, 2013
    Assignee: Butterfly Haptics, LLC
    Inventor: Ralph LeRoy Hollis, Jr.
  • MAGNETIC LEVITATION HAPTIC INTERFACE SYSTEM
    Publication number: 20110050405
    Abstract: This invention discloses a haptic interface system that uses Lorentz forces to provide magnetic levitation for a handle which can be manipulated by a person, typically a computer user.
    Type: Application
    Filed: February 25, 2010
    Publication date: March 3, 2011
    Inventor: Ralph LeRoy Hollis, JR.