Patents by Inventor Carol Keefer

Carol Keefer 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).

  • Identification and isolation of pluripotency determining factors
    Publication number: 20050255530
    Abstract: Transcription factors associated with maintenance of pluripotency, Oct-4 and Nanog, are expressed in bovine and/or caprine pre-implantation embryos and isolated. Oct-4 protein and mRNA are expressed in both the inner cell mass and trophectoderm of expanded goat blastocysts. Oct-4 may play a role in trophectoderm proliferation and prevention of premature differentiation in elongating blastocysts. Nanog mRNA is expressed in the inner cell mass.
    Type: Application
    Filed: February 4, 2005
    Publication date: November 17, 2005
    Inventors: Carol Keefer, Steven Bischoff
  • Method for development of transgenic dwarf goats
    Patent number: 5907080
    Abstract: The invention features a method which includes the following steps: (a) introducing a transgene into a zygote of a dwarf goat, (b) transplanting the zygote into a pseudopregnant non-dwarf goat, and (c) allowing the zygote to develop to term. In another aspect the invention features a method which includes the following steps: (a) introducing a transgene into an embryo of a dwarf goat, (b) transplanting the embryo into a pseudopregnant non-dwarf goat, and (c) allowing the embryo to develop to term.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: May 25, 1999
    Assignee: Nexia Biotechnologies, Inc.
    Inventors: Costas Karatzas, Carol Keefer, Jeffrey D. Turner