William Michael Riggin

Person

  • Midlothian, VA, US

Patents Applicationslast 30 patents

  • Information Patent Application

    Pigment for rotogravure paper

    • Publication number 20020161097
    • Publication date Oct 31, 2002
    • John Hen
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...