Patents by Inventor Ian Charles Roman

Ian Charles Roman 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).

  • Treatment of gas separation membranes with inert solvent
    Patent number: 5868992
    Abstract: A process for improving the permselectivity of polymeric gas separation membranes is disclosed. The process involves contacting the membrane with a fluorocarbon, such as fluorinated ethers, perferably perfluorinated compounds, or a solution of a fluorocarbon and a caulking agent.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: February 9, 1999
    Assignee: L'Air Liquide, S.A.
    Inventor: Ian Charles Roman