BEIJING SJ ENVIRONMENT PROTECTION AND NEW MATERIAL CO., LTD.

Organization

  • Beijing, CN

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for preparing magnetic iron oxide

    • Patent number 9,315,392
    • Issue date Apr 19, 2016
    • BEIJING SJ ENVIRONMENT PROTECTION AND NEW MATERIAL CO., LTD.
    • Zhenyi Liu
    • C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Trademarklast 30 trademarks