Patents by Inventor Benjamin E. Rich

Benjamin E. Rich 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).

  • 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
  • Cell culture system
    Patent number: 5459058
    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: November 21, 1994
    Date of Patent: October 17, 1995
    Assignee: Benjamin Rich
    Inventors: Philip Leder, Benjamin E. Rich