Patents by Inventor James F. Fagan

James F. Fagan 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).

  • Ionic component sensor and method for making and using same
    Patent number: 5081041
    Abstract: A composition of matter useful in a sensor for sensing the concentration of an ionic component in a medium is disclosed. This composition comprises a first material which includes a sensing component in an amount effective to provide a signal which varies as the concentration of the ionic component in the medium varies, and a first matrix material which is permeable to the ionic component; and a second material which includes a second matrix material which is permeable to the ionic component, and an opaque agent in an amount sufficient to render the second material effectively opaque. The first material matrix and the second matrix material are covalently bonded together. Sensing apparatus including such composition of matter and methods for making and using such composition of matter are also disclosed.
    Type: Grant
    Filed: April 3, 1990
    Date of Patent: January 14, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Masao Yafuso, Evan A. Thompson, John L. Dektar, James F. Fagan, Sanjay L. Patil