Patents by Inventor Leigh E. Nelson

Leigh E. Nelson 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).

  • Monitoring device
    Patent number: 4208194
    Abstract: An improved device for measuring the amount of a selected component of a fluid mixture wherein the particulate sorbent material which collects the selected component is immobilized in a matrix of polytetrafluoroethylene.
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: June 17, 1980
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Leigh E. Nelson