Patents by Inventor Marek E. Krzymien

Marek E. Krzymien 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).

  • Patent number: 4980294
    Abstract: A simple but precise procedure for measuring fish freshness in terms of trimethylamine (TMA) headspace concentration of a fish sample is provided based on air sampling the headspace with Carbotrap.RTM. or Tenax.RTM. sorbent tubes and subsequent thermal desorption and gas chromatographic analysis. The sampling and analysis are completed in less than five minutes. Fish freshness as determined by the TMA headspace concentration is consistent with the grading estimated by organoleptic tests, but the instrumental method provides a more objective and quantitative assessment of quality and an estimation of the post mortem age of the fish.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: December 25, 1990
    Assignee: National Research Council of Canada/Conseil National de Recherches du Canada
    Inventors: Lorne Elias, Marek E. Krzymien