Patents by Inventor Rui-Feng Zhang

Rui-Feng Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Degreasing agent
    Patent number: 7427586
    Abstract: A degreasing agent includes a mixture of trisodium phosphate, sodium silicate, sodium carbonate, sodium dodecyl benzene sulphonate, sodium hydrosulphite and octyl-phenol-polyoxyethylene ether. The degreasing agent may maintain degreasing effect for longer period of time. In addition, the metal product cleaned by the degreasing agent has a low cleaning inferior rate.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: September 23, 2008
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., Sutech Trading Limited
    Inventors: Xian-Liang Liu, Rui-Feng Zhang, Jian-Bin Zhao
  • DEGREASING AGENT
    Publication number: 20080146483
    Abstract: A degreasing agent includes a mixture of trisodium phosphate, sodium silicate, sodium carbonate, sodium dodecyl benzene sulphonate, sodium hydrosulphite and octyl-phenol-polyoxythylene ether. The degreasing agent may maintain degreasing effect for longer period of time. In addition, the metal product cleaned by the degreasing agent has a low cleaning inferior rate.
    Type: Application
    Filed: November 1, 2007
    Publication date: June 19, 2008
    Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., Sutech Trading Limited
    Inventors: XIAN-LIANG LIU, RUI-FENG ZHANG, JIAN-BIN ZHAO