Patents by Inventor Youshen Ding

Youshen Ding 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).

  • Formulation for neutralization of formaldehyde and method of using and disposing of the same
    Patent number: 6043405
    Abstract: A method and treatment composition for neutralizing formaldehdye. The treatment composition contains polyethylenimine, urea and an acid having a pH of less than 6. Treatment of formaldehyde solutions with the treatment composition results in a suspension that it easily disposable and non-toxic.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: March 28, 2000
    Assignee: Isolyser Company, Inc.
    Inventors: Travis W. Honeycutt, Baosheng Lee, Youshen Ding, Ashley Myers, Dong Dai