Patents by Inventor Renee J. Sugasawara

Renee J. Sugasawara 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).

  • Method of preparing a composition that enhances
    Patent number: 5556770
    Abstract: The present invention provides a composition of matter useful for enhancing the viability of hybridomas in culture which comprises a partially purified, cell-free extract derived from a medium conditioned by mitogen-stimulated macrophages, the extract being substantially free of the macrophage stimulating mitogen which had been added to the medium, and having within it a component characterized by the ability to enhance the viability of hybridomas in culture, and by an apparent molecular weight in the range from about 35,000 to about 45,000. Also provided are methods of preparing the composition of matter, and methods for enhancing the viability of hybridomas in culture.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: September 17, 1996
    Assignee: Igen, Inc.
    Inventors: Renee J. Sugasawara, Ruth B. Hill