Patents by Inventor Stephen Tarkanic

Stephen Tarkanic 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).

  • Apparatus and methods for improving fluorescence detectors
    Patent number: 6636314
    Abstract: A method and apparatus are disclosed for the improving the sensitivity of fluorescent detectors, especially UV fluorescent detectors using a light reaction cell including a reaction chamber having an optically smooth, highly reflective interior surface. The chamber can also include an insert that imparts either or both optically smooth and high reflectivity to the chamber. Increased interior surface smoothness and reflectivity significantly improves sensitivity and detection limits making ppb measurements routine.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: October 21, 2003
    Assignee: Antek Instruments, L.P.
    Inventors: Stephen Tarkanic, James S. Wreyford, Abige Davie Harkins
  • Apparatus and methods for improving fluorescence detectors
    Patent number: 6075609
    Abstract: A method and apparatus are disclosed for the improving the sensitivity of fluorescent detectors, especially UV fluorescent detectors using a light reaction cell including a reaction chamber having an optically smooth, highly reflective interior surface. The chamber can also include an insert that imparts either or both optically smooth and high reflectivity to the chamber. Increased interior surface smoothness and reflectivity significantly improves sensitivity and detection limits making ppb measurements routine.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: June 13, 2000
    Assignee: Antek Industrial Instruments, Inc.
    Inventors: Stephen Tarkanic, James S. Wreyford, Abige Davie Harkins