Patents by Inventor William M. DeAngelis

William M. DeAngelis 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).

  • Chromatographic column
    Patent number: 4116836
    Abstract: A monolithic glass construction having a continuous passageway formed therethrough packed with chromatographic packing material is used as a chromatographic column. The monolithic construction enables the column to be formed of the longest practical length and smallest practical diameter to increase the efficiency of the column, while also providing a durable column. Quick-connect and disconnect couplings to a gas feed and analysis device are mounted on the monolithic construction.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: September 26, 1978
    Assignees: Henry Allen, Charles J. Garbarini, Jr.
    Inventor: William M. DeAngelis