Patents by Inventor L. James Marggraff

L. James Marggraff 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).

  • Write on interactive apparatus and method
    Patent number: 7120385
    Abstract: An interactive print media apparatus is disclosed. It includes a platform including a surface and an electronic position location system, and a print medium including a prescribed location. A user can write in the prescribed location. During writing, the writing instrument and the electronic position location system are operationally decoupled.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: October 10, 2006
    Assignee: LeapFrog Enterprises, Inc.
    Inventor: L. James Marggraff
  • Interactive apparatus using print media
    Patent number: 6985139
    Abstract: A method for producing an output in response to an interaction with a print element on a sheet is disclosed. In one embodiment, the method includes placing a sheet comprising a print element on a surface of a base unit. A user can then mark on the sheet in the vicinity of the print element with a marking instrument. An audio output that corresponds to the print element is generated.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: January 10, 2006
    Assignee: LeapFrog Enterprises, Inc.
    Inventors: L. James Marggraff, Mark Flowers
  • Interactive apparatus using print media
    Publication number: 20040140966
    Abstract: A method for producing an output in response to an interaction with a print element on a sheet is disclosed. In one embodiment, the method includes placing a sheet comprising a print element on a surface of a base unit. A user can then mark on the sheet in the vicinity of the print element with a marking instrument. An audio output that corresponds to the print element is generated.
    Type: Application
    Filed: January 5, 2004
    Publication date: July 22, 2004
    Applicant: LeapFrog Enterprises, Inc.
    Inventors: L. James Marggraff, Mark Flowers
  • Compact book and apparatus using print media
    Publication number: 20040104890
    Abstract: Interactive books are disclosed. An example includes a front cover and a rear cover. At least one page is between the front and rear covers. A binder couples the front cover, the rear cover, and the at least one page together. An antenna is in the rear cover. A stylus is coupled to either the front or the rear cover, and an output device such as a speaker is coupled to the front or the rear cover.
    Type: Application
    Filed: September 3, 2003
    Publication date: June 3, 2004
    Applicant: LeapFrog Enterprises, Inc.
    Inventors: John Caldwell, Larry Lynch, L. James Marggraff, Eric Thomas Shuler
  • Write on interactive apparatus and method
    Publication number: 20030162162
    Abstract: An interactive print media apparatus is disclosed. In one embodiment, it comprises a platform comprising a surface, an electronic position location system, and a print medium including a prescribed location. A user can write in the prescribed location.
    Type: Application
    Filed: February 6, 2003
    Publication date: August 28, 2003
    Applicant: LeapFrog Enterprises, Inc.
    Inventor: L. James Marggraff