Patents by Inventor Leticia R. Regis

Leticia R. Regis 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).

  • Patent number: 6693173
    Abstract: A method is provided for removing citrate, aluminum, and other multivalent ions and contaminants from proteins by adjusting the pH of a solution containing the protein to a pH from about 7 to about 10, and diafiltering the pH-adjusted solution against aqueous solutions which have a low level of ions.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: February 17, 2004
    Assignee: Alpha Therapeutic Corporation
    Inventors: Raja R. Mamidi, Leticia R. Regis, Mauro C. Mojica, Hirokazu Ito, Takashi Goto
  • Publication number: 20020132986
    Abstract: A method is provided for removing citrate, aluminum, and other multivalent ions and contaminants from proteins by adjusting the pH of a solution containing the protein to a pH from about 7 to about 10, and diafiltering the pH-adjusted solution against aqueous solutions which have a low level of ions.
    Type: Application
    Filed: December 26, 2000
    Publication date: September 19, 2002
    Inventors: Raja R. Mamidi, Leticia R. Regis, Mauro C. Mojica, Hirokazu Ito, Takashi Goto
  • Publication number: 20020132985
    Abstract: A method is provided for removing citrate, aluminum, and other multivalent ions and contaminants from proteins by adjusting the pH of a solution containing the protein to a pH from about 7 to about 10, and diafiltering the pH-adjusted solution against aqueous solutions which have a low level of ions.
    Type: Application
    Filed: March 13, 2001
    Publication date: September 19, 2002
    Inventors: Raja R. Mamidi, Leticia R. Regis, Mauro C. Mojica, Hirokazu Ito, Takashi Goto