Patents by Inventor George S. Campbell

George S. Campbell 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).

  • Publication number: 20160024204
    Abstract: The present invention describes a method for producing an antibody in Pichia pastoris, such as by fed-batch fermentation. The method includes a respiratory quotient control for monitoring the ethanol profile and to improve the quality of the antibody by, for example, eliminating clipping of the heavy chain. The method may also include a strategy of increasing the ethanol concentration to about 18-22 g/L and then maintaining the ethanol level at about 5-17 g/L to stabilize the cell mass and enhance the production rate of the antibody. The method may also include the addition of about 2.0-5.0 g/L of hydroxyurea during the fermentation process to sustain a constant cell density and enhance the whole broth titer of the antibody.
    Type: Application
    Filed: March 14, 2014
    Publication date: January 28, 2016
    Inventors: Zizhuo Xing, George S. Campbell, Bruce E. Eagan, Yueming Qian, Xuankuo Xu, Li You, Zhengjian Li, Nan-Xin Qian
  • Publication number: 20160024203
    Abstract: The present invention describes a method for producing an antibody in Pichia pastoris, such as by fed-batch fermentation. The method includes the addition of about 2.0-5.0 g/L of hydroxyurea during the fermentation process to sustain a constant cell density and enhance the whole broth titer of the antibody. The method may also include a strategy of increasing the ethanol concentration to about 18-22 g/L and then maintaining the ethanol level at about 5-17 g/L to stabilize the cell mass and enhance the production rate of the antibody. The method may further include a respiratory quotient control for monitoring the ethanol profile and to improve the quality of the antibody by, for example, eliminating clipping of the heavy chain.
    Type: Application
    Filed: March 14, 2014
    Publication date: January 28, 2016
    Inventors: Zizhuo Xing, George S. Campbell, Bruce E. Eagan, Yueming Qian, Xuankuo Xu, Li You, Zhengjian Li, Nan-Xin Qian
  • Publication number: 20140273093
    Abstract: The present invention describes a method for producing an antibody in Pichia pastoris, such as by fed-batch fermentation. The method may include a strategy of increasing the ethanol concentration to 18-22 g/L and then maintaining the ethanol level at 5-17 g/L to stabilize the cell mass and enhance the production rate of the antibody. The method may also include the addition of 2.0-5.0 g/L of hydroxyurea during the fermentation process to sustain a constant cell density and enhance the whole broth titer of the antibody. The method may further include a respiratory quotient control for monitoring the ethanol profile and to improve the quality of the antibody by, for example, eliminating clipping of the heavy chain.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: BRISTOL-MYERS SQUIBB COMPANY
    Inventors: Zizhuo XING, George S. Campbell, Bruce E. Eagan, Yueming Qian, Xuankuo Xu, Li You, Zhengjian Li, Nan-Xin Qian
  • Publication number: 20140273094
    Abstract: The present invention describes a method for producing an antibody in Pichia pastoris, such as by fed-batch fermentation. The method may include a strategy of increasing the ethanol concentration to 18-22 g/L and then maintaining the ethanol level at 5-17 g/L to stabilize the cell mass and enhance the production rate of the antibody. The method may also include the addition of 2.0-5.0 g/L of hydroxyurea during the fermentation process to sustain a constant cell density and enhance the whole broth titer of the antibody. The method may further include a respiratory quotient control for monitoring the ethanol profile and to improve the quality of the antibody by, for example, eliminating clipping of the heavy chain.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: BRISTOL-MYERS SQUIBB COMPANY
    Inventors: ZIZHUO XING, GEORGE S. CAMPBELL, BRUCE E. EAGAN, YUEMING QIAN, XUANKUO XU, LI YOU, ZHENGJIAN LI, NAN-XIN QIAN
  • Patent number: 4340197
    Abstract: A decoy missile having a high moment of inertia with a corresponding reduction of the natural oscillation frequency for simulating reentry of a ballistic nose cone into the earth's atmosphere. High density ballast material disposed in the forward section is in proportional relationship to similar ballast material in the base section such that the distance between the center of pressure and the center of gravity is equal to one-half the base diameter.
    Type: Grant
    Filed: February 15, 1966
    Date of Patent: July 20, 1982
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: George S. Campbell