Patents by Inventor Ronald Frederich Brookes

Ronald Frederich Brookes 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).

  • Incremental absorbance scanning of liquid in dispensing tips
    Patent number: 6235534
    Abstract: A method and apparatus for detecting improper liquid content of a metering tip of an analyzer. The method detects the content or status using radiation between 630 and 2000 nm, and comprises the steps of: a) aspirating the liquid into the tips; b) scanning the liquid; c) providing relative motion between the tip and the scanner while simultaneously scanning the liquid; d) detecting the amount of light transmitted to detector at all levels of the liquid; e) comparing the detected light with light known to be transmitted at levels of liquid free of air bubbles; and flagging the results.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: May 22, 2001
    Inventors: Ronald Frederich Brookes, Merrit Nyles Jacobs, Alan John Lowne, James David Shaw