Patents by Inventor Richard Offeman

Richard Offeman 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).

  • Spiral-wound liquid membrane module for separation of fluids and gases
    Publication number: 20060131235
    Abstract: The present invention is a filtering and chemical separation device that performs the operations of solvent extraction and pervaporation in a single piece of equipment, configured as a spiral-wound membrane module, and provides for the replenishment of the solvent in the supported liquid membrane while the module continues in operation. It provides a solution to the problem of separating miscible compounds efficiently and with low energy requirements.
    Type: Application
    Filed: December 16, 2004
    Publication date: June 22, 2006
    Applicant: The United States of America, as represented by the Secretary of Agriculture
    Inventors: Richard Offeman, George Robertson