TREA

Steven William MacMaster

Follow

Person

  • Philadelphia, PA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Reflection-type projection screen
    • Patent number 8,014,066
    • Issue date Sep 6, 2011
    • E. I. Du Pont de Nemours and Company
    • Eric W. Teather
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Security hologram, method of recording same, and method of using sa...
    • Patent number 7,710,623
    • Issue date May 4, 2010
    • E. I. Du Pont de Nemours and Company
    • Steven William MacMaster
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Privacy screen for a display
    • Patent number 7,247,356
    • Issue date Jul 24, 2007
    • E. I. Du Pont de Nemours and Company
    • Steven William MacMaster
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Privacy screen for a display
    • Patent number 7,201,955
    • Issue date Apr 10, 2007
    • E. I. Du Pont de Nemours and Company
    • Steven William Mac Master
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Privacy screen for a display
    • Patent number 7,170,680
    • Issue date Jan 30, 2007
    • E. I. Du Pont de Nemours and Company
    • Steven William Macmaster
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Privacy screen for a display
    • Patent number 7,052,746
    • Issue date May 30, 2006
    • E. I. Du Pont de Nemour and Company
    • Steven William MacMaster
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents