Mark J Stefik, Michalene M Casey: System for controlling the distribution and use of digital works. Xerox Corporation, Richard B Domingo, May 13, 1997: US05629980 (1220 worldwide citation)

A system for controlling use and distribution of digital works. In the present invention, the owner of a digital work attaches usage rights to that work. Usage rights are granted by the "owner" of a digital work to "buyers" of the digital work. The usage rights define how a digital work may be used ...

Mark J Stefik, Daniel G Bobrow, Stuart K Card, Michalene M Casey, Richard J Goldstein, Michael G Lamming, Jock D Mackinlay, Roy Want, George G Robertson, Mark D Weiser, Daniel M Russell: Interactive contents revealing storage device. Xerox Corporation, Richard B Domingo, June 25, 1996: US05530235 (490 worldwide citation)

A Document Card (DocuCard) for storing documents and which is content revealing. The DocuCard is a transportable unit having a nonvolatile storage means for storing information in a digital form, a control processor for processing user initiated functions; an I/O port for interfacing to external dev ...

Mark J Stefik, David M Levy, Michalene M Casey: Computing system with an interactive display. Xerox Corporation, Fariba Rad, March 3, 1998: US05724064 (21 worldwide citation)

An interactive display is disclosed which comprises a housing to receive an induced field activated display sheet which has a plurality of image producing elements responsive to an induced field. The housing has a transparent cover panel and a base panel. The cover panel and the base panel of the di ...