Patents by Inventor Jack A. Hamlin

Jack A. Hamlin 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).

  • Inverted separation and transfer device, and process for using same
    Patent number: 4921618
    Abstract: A device and process for simultaneous separation and transfer utilizes an inverted device which holds a liquid, to be separated, above a collection cup. Preferably the separation is accomplished by filtration. The separation and transfer occur without spillage or contamination of the liquid. The device and process are especially useful for the filtration of liquid samples prior to analysis via gas chromatography or high pressure liquid chromatography.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: May 1, 1990
    Assignee: BASF Corporation
    Inventor: Jack A. Hamlin