Patents by Inventor Anna Chow

Anna Chow 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).

  • Isopropanolate of azithromycin and method of manufacturing
    Publication number: 20060183890
    Abstract: Azithromycin isopropanolate of the empirical formula azithromycin:[H20]x:[isopropanol]y is obtained from the crystallization of azithromycin in isopropanol and water. The x and y values is confirmed by single X-ray diffraction determination. In one embodiment x=1.5 and y=0.25. In another embodiment x=0.75 and y=0.5.
    Type: Application
    Filed: March 19, 2004
    Publication date: August 17, 2006
    Inventors: Tim Tam, Khashayar Karimian, Shui Hu, Anna Chow, Richard Storey