C. Edward Williams

Person

  • Denver, CO, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Contact lens

    • Patent number 5,302,978
    • Issue date Apr 12, 1994
    • Pilkington Visioncare, Inc.
    • John M. Evans
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL