Patents by Inventor Albert M. Cheh

Albert M. Cheh 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).

  • Methods for producing extracted and digested products from pretreated lignocellulosic biomass
    Patent number: 9650657
    Abstract: Methods for producing extracted and digested products from pretreated lignocellulosic biomass are provided. The methods include converting native cellulose I? to cellulose IIII by pretreating the lignocellulosic biomass with liquid ammonia under certain conditions, and performing extracting or digesting steps on the pretreated/converted lignocellulosic biomass.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: May 16, 2017
    Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: Shishir Chundawat, Leonardo Da Costa Sousa, Albert M. Cheh, Venkatesh Balan, Bruce Dale
  • DIGESTIBLE LIGNOCELLULOSIC BIOMASS AND EXTRACTIVES AND METHODS FOR PRODUCING SAME
    Publication number: 20130217073
    Abstract: The invention relates to methods for treating lignocellulosic biomass to obtain useful products therefrom.
    Type: Application
    Filed: April 19, 2011
    Publication date: August 22, 2013
    Applicant: Board of Trustees of Michigan State University
    Inventors: Shishir Chundawat, Leonardo Da Costa Sousa, Albert M. Cheh, Venkatesh Balan, Bruce Dale
  • Sulfite destruction of direct acting mutagens in drinking water
    Patent number: 4364835
    Abstract: A method of reducing the activity of non-volatile mutagens, in chlorinated water, such as chlorinated drinking water and municipal and industrial waste water, by sulfite treatment. The chlorinated water is treated with a stoichiometric excess of sulfur dioxide or soluble sulfite or bisulfite salt sufficient to dechlorinate the water and at least partially destroy the mutagens present.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: December 21, 1982
    Assignee: Regents of the University of Minnesota
    Inventor: Albert M. Cheh