Patents by Inventor Chi-Neng Arthur Han

Chi-Neng Arthur Han 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 testing properties of materials
    Patent number: 6474140
    Abstract: A system including methods and apparatus for measuring properties of a material, such as surface tension, surface energy, absorption, adsorption, permeability, porosity and printability and the like. A chemical marker containing test liquid is applied to the material and excess test liquid not retained by the material is removed. Thereafter, either the removed test liquid or the test liquid retained by the material is analyzed to determine the amount of chemical marker substance in the test liquid and, thus, the desired property of the material.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: November 5, 2002
    Inventors: Chi-Neng Arthur Han, Robert K. Yang, Alex J. Phinn
  • System for testing properties of materials
    Patent number: 6230548
    Abstract: A system including methods and apparatus for measuring properties of a material, such as surface tension, surface energy, absorption, adsorption, permeability, porosity and printability and the like. A chemical marker containing test liquid is applied to the material and excess test liquid not retained by the material is removed. Thereafter, either the removed test liquid or the test liquid retained by the material is analyzed to determine the amount of chemical marker substance in the test liquid and, thus, the desired property of the material.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: May 15, 2001
    Inventors: Chi-Neng Arthur Han, Robert K. Yang, Alex J. Phinn
  • Analyte detection systems
    Patent number: 6121050
    Abstract: The present invention is directed to an improved analyte systems which are able to compensate for interfering signals and to provide accurate detection and/or quantification of analytes in a sample. In particular, the invention describes new methods, systems, and devices for indirectly determining the presence of one or more analytes in a multi-component medium.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: September 19, 2000
    Inventor: Chi-Neng Arthur Han
  • Stable reagent for ferric ion complex indicator systems
    Patent number: 5639631
    Abstract: The invention is a stable reagent used in assay systems that form a colored ferric ion complex, such as Prussian Blue. Such reagents are useful for the detection or measurement of an analyte from a fluid sample. Surprisingly, it has been found that the inclusion of certain ferric ion chelating agents, such as 3-sulfobenzoic acid, will inhibit formation of the blank reaction in the reagent.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: June 17, 1997
    Assignee: Boehringer Mannheim Corporation
    Inventors: Chi-Neng Arthur Han, Kenneth J. Dean, Walter W. Jernigan, William R. Carr