Patents by Inventor Cheryl Feia

Cheryl Feia 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).

  • Terpolymer composition with bound indicator dye for fiber optic probe
    Patent number: 4906249
    Abstract: An improved pH probe based on fiber optics and a unique cross-linked terpolymer of methacrylamidopropyl-trimethyl ammonium chloride, sodium acrylamidopropane sulfonate, and acrylamide, the terpolymer having bound thereto an indicator dye.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: March 6, 1990
    Assignee: Medtronic, Inc.
    Inventors: Eric Fogt, Linda Cahalan, Cheryl Feia, Jeff Schweitzer, Pat Cahalan