Patents by Inventor Robert A. Landowne

Robert A. Landowne 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).

  • Two-phase filter and thin layer chromatography process
    Patent number: 4157299
    Abstract: A process of using a two-phase gas or liquid filter and thin layer chromaraphy member having a filter portion and a chromatography portion. The sample is collected and analyzed on the same member. A developing solvent of substantially acrylonitrile-benzene-petroleum ether is used to allow the sample to chromatograph on the chromatography portion of the member.
    Type: Grant
    Filed: January 22, 1976
    Date of Patent: June 5, 1979
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Robert A. Landowne