Patents Assigned to Photonic Systems
  • Process for forming polymer structures containing an oxygen sensor
    Patent number: 6794191
    Abstract: There is disclosed a process for melting a luminescent oxygen sensitive compound into extruded polymer films. Specifically, there is disclosed a process for thermal melting of oxygen-sensitive indicators into common packaging polymers used for commercial packaging of products, such as foods. The oxygen-sensitive indicators can be used for real-time monitoring of oxygen in commercial packaging operations.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: September 21, 2004
    Assignee: Photonic Systems
    Inventors: David L. Putnam, Todd Hubbard