Patents by Inventor Nhuan P. Nghiem

Nhuan P. Nghiem 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).

  • Barley-Based Biorefinery Process
    Publication number: 20140273134
    Abstract: The barley-based biorefinery process comprises a method of optimizing the production of ethanol and value-added products from barley feedstock. Specifically, the biorefinery process is an integrated barley treatment process that utilizes essentially all components of barley (including the barley hulls) to efficiently produce ethanol and other value-added liquids and solids.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicants: DANISCO US INC., The United States of America as represented by the Secretary of Agriculture
    Inventors: Nhuan P. Nghiem, Kevin B. Hicks, David B. Johnston, Justin M. Montanti, Jayarama K. Shetty
  • Method for improving the bioavailability of polysaccharides in lignocellulosic materials
    Patent number: 8202970
    Abstract: A method for improving the bioavailability of polysaccharides in lignocellulosic materials, involving reacting lignocellulosic materials with ammonia and ethanol.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: June 19, 2012
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventors: Nhuan P. Nghiem, Tae H. Kim, Kevin B. Hicks
  • Method of preventing yellow metal corrosion in aqueous systems with superior corrosion performance in reduced environmental impact
    Patent number: 5503775
    Abstract: The invention provides a method of preventing the corrosion of yellow metal surfaces in contact with water. The method comprising the step of adding to the water an environmentally safe mixed tolyltriazole composition including at least 65% of the 5-methylbenzotriazole isomer by weight.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: April 2, 1996
    Assignee: Nalco Chemical Company
    Inventors: Narasimha M. Rao, Frank F. Lu, Donald A. Johnson, Nhuan P. Nghiem
  • Biological process to remove color from paper mill wastewater
    Patent number: 5407577
    Abstract: A process for removing color from a pulp and paper wastewater which comprises the following steps: (A) treating the wastewater with an enzyme which is capable of oxidizing at least a portion of the color forming components of the wastewater; and (B) treating the wastewater subsequent to the enzyme treatment of step (A) with a tannin-degrading microorganism capable of degrading at least a portion of the oxidized color forming components.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: April 18, 1995
    Assignee: Nalco Chemical Company
    Inventor: Nhuan P. Nghiem
  • Process for reducing metal concentration in aqueous systems
    Patent number: 5225340
    Abstract: The concentration of at least one metal species in an aqueous system is at least reduced in an aqueous system that contains at least one kind of chelating agent, by adding to such system a species or plurality of species of bacteria that have a low toxicity for the metal species, and establishing and maintaining a biomass in the system for a sufficent time period to reduce the metal concentration.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: July 6, 1993
    Assignee: Nalco Chemical Company
    Inventors: Nhuan P. Nghiem, Thomas M. Miller, Richard J. Mouche