Patents by Inventor Iraj Aghazade Mohandesi

Iraj Aghazade Mohandesi 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).

  • Guard cartridge for chromatography
    Patent number: 5863428
    Abstract: A new type of guard cartridge has been provided to prevent contamination of liquid chromatography (LC) columns by particulate and soluble contaminants. The cartridge is prepared by packing an empty tube with a chromatographic stationary phase and the packed tube is then sealed on both ends with porus sheets held in place by two collars. The cartridge gives minimum disturbance on column performance and significantly decreases the cost of production.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: January 26, 1999
    Assignee: Phenomenex
    Inventors: Qi-Feng Ma, Iraj Aghazade Mohandesi, Fred Astani