Patents by Inventor Jeffery S. Riggs

Jeffery S. Riggs 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: 6598458
    Abstract: A chamber for trapping soil gases as they evolve from the soil without disturbance to the soil and to the natural microclimate within the chamber has been invented. The chamber opens between measurements and therefore does not alter the metabolic processes that influence soil gas efflux rates. A multiple chamber system provides for repetitive multi-point sampling, undisturbed metabolic soil processes between sampling, and an essentially airtight sampling chamber operating at ambient pressure.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: July 29, 2003
    Assignee: UT-Battelle, LLC
    Inventors: Nelson T. Edwards, Jeffery S. Riggs
  • Publication number: 20030136174
    Abstract: A chamber for trapping soil gases as they evolve from the soil without disturbance to the soil and to the natural microclimate within the chamber has been invented. The chamber opens between measurements and therefore does not alter the metabolic processes that influence soil gas efflux rates. A multiple chamber system provides for repetitive multi-point sampling, undisturbed metabolic soil processes between sampling, and an essentially airtight sampling chamber operating at ambient pressure.
    Type: Application
    Filed: January 18, 2002
    Publication date: July 24, 2003
    Inventors: Nelson T. Edwards, Jeffery S. Riggs