Donald E. Ponzer

Person

  • Imperial, MO, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for molding a protective helmet

    • Patent number 5,298,208
    • Issue date Mar 29, 1994
    • Athletic Helmet, Inc.
    • Kent V. Sibley
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL