Patents by Inventor Hang Nhung Ho

Hang Nhung Ho 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).

  • System for evaluating the pH and buffering capacity of moisture containing cleansing articles
    Patent number: 7850911
    Abstract: A system comprising a moisture containing cleansing article and a visual pH indicator changing color at a pH above 4.0. The system can comprise a buffer, having preferably a pKa above 5.5. The system can comprise a set of instructions for evaluating moisture containing cleansing articles. The pH buffer of the system can have a pKa value equal to or greater than the pH of the color change of the visual pH indicator. The pH of color change of the visual pH indicator can be equal to or greater than the pH of the lotion. The system can be used to evaluate the pH of moisture containing cleansing article lotions and to quantify the ability to neutralize alkalinity such as the alkalinity provided by residues of feces and urine over time on the skin of a baby.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: December 14, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Mathias Kurt Herrlein, Hang Nhung Ho, Trang Le, Philip Andrew Sawin
  • System for Evaluating the pH and Buffering Capacity of Moisture Containing Cleansing Articles
    Publication number: 20100197037
    Abstract: A system comprising a moisture containing cleansing article and a visual pH indicator changing color at a pH above 4.0. The system can comprise a buffer, having preferably a pKa above 5.5. The system can comprise a set of instructions for evaluating moisture containing cleansing articles. The pH buffer of the system can have a pKa value equal to or greater than the pH of the color change of the visual pH indicator. The pH of color change of the visual pH indicator can be equal to or greater than the pH of the lotion. The system can be used to evaluate the pH of moisture containing cleansing article lotions and to quantify the ability to neutralize alkalinity such as the alkalinity provided by residues of feces and urine over time on the skin of a baby.
    Type: Application
    Filed: April 16, 2010
    Publication date: August 5, 2010
    Applicant: The Procter & Gamble Company
    Inventors: Mathias Kurt Herrlein, Hang Nhung Ho, Trang Le, Philip Andrew Sawin
  • System for evaluating the pH and buffering capacity of moisture containing cleansing articles
    Patent number: 7727468
    Abstract: A system comprising a moisture containing cleansing article and a visual pH indicator changing color at a pH above 4.0. The system can comprise a buffer, having preferably a pKa above 5.5. The system can comprise a set of instructions for evaluating moisture containing cleansing articles. The pH buffer of the system can have a pKa value equal to or greater than the pH of the color change of the visual pH indicator. The pH of color change of the visual pH indicator can be equal to or greater than the pH of the lotion. The system can be used to evaluate the pH of moisture containing cleansing article lotions and to quantify the ability to neutralize alkalinity such as the alkalinity provided by residues of feces and urine over time on the skin of a baby.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: June 1, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Mathias Kurt Herrlein, Hang Nhung Ho, Trang Le, Philip Andrew Sawin