Robert R. Simmons

Person

  • Norton, OH, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Active agent delivery device

    • Patent number 5,035,886
    • Issue date Jul 30, 1991
    • PPG Industries, Inc.
    • Paritosh M. Chakrabarti
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL