Patents Assigned to Benjamin E. Rich
  • Cell culture system
    Patent number: 5759856
    Abstract: Disclosed is a method for the culture of higher eukaryotic cells which are dependent for survival on an exogenous factor. The method involves co-culturing the factor-dependent cells with an immortalized eukaryotic cell that has been engineered to secrete the requisite factor.Also disclosed is a cell line of non-stromal cell origin which secretes interleukin-7.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 2, 1998
    Assignee: Benjamin E. Rich
    Inventors: Philip Leder, Benjamin E. Rich