Patents by Inventor Tommy Y. Meng

Tommy Y. Meng 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).

  • Process for peroxide bleaching of mechanical pulp using sodium carbonate and non-silicate chelating agents
    Patent number: 5248389
    Abstract: A process is provided for peroxygen bleaching of high yield pulp in which sodium carbonate replaces sodium hydroxide and sodium silicate. The process employs a chelating agent as a substitute for the silicate normally required so that the process can operate as a closed cycle system.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: September 28, 1993
    Assignee: FMC Corporation
    Inventors: Stanley A. Heimburger, Steve E. Tremblay, Tommy Y. Meng