Patents by Inventor Julian Lawrence Ritchie

Julian Lawrence Ritchie 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).

  • MEASUREMENT OF SOIL POLLUTION
    Publication number: 20100015714
    Abstract: A soil sample of fixed volume is mixed with a drying agent (MgSO4) and then acetone. The liquid is filtered off and a sample is applied to the sensing surface of an attenuated total reflectance (ATR) device in an IR spectrometer. After evaporation of the acetone, absorption is measured in a C-H stretch region (e.g. 2950 cm?1) to provide a value indicative of the amount of oil in the sample.
    Type: Application
    Filed: December 5, 2005
    Publication date: January 21, 2010
    Inventors: Selwayan Saini, John Stephen Setford, Julian Lawrence Ritchie, Vincent Paul Knight, Markus Michael Malecha