Rosin acids

Patents Grantslast 30 patents

  • Information Patent Grant

    Steel cord for rubber reinforcement and method for manufacturing th...

    • Patent number 9,970,156
    • Issue date May 15, 2018
    • Hongduk Industrial Co., Ltd.
    • Seong Hun Song
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2233203

    • Patent number 2,233,203
    • Issue date Feb 25, 1941
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents