TREA

Hongfeng Ren

Follow

Person

  • Rowlett, TX, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Well cementing
    • Patent number 9,758,713
    • Issue date Sep 12, 2017
    • Fritz Industries, Inc
    • James C. Ferrell
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Well cementing
    • Patent number 9,714,372
    • Issue date Jul 25, 2017
    • FRITZ INDUSTRIES, INC. A CORP. OF TEXAS
    • James C. Ferrell
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Well cementing
    • Patent number 9,321,953
    • Issue date Apr 26, 2016
    • Fritz Industries, Inc
    • James C. Ferrell
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...