Patents by Inventor Frances M. Davis

Frances M. Davis 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).

  • Reducing dislocations in semiconductors utilizing repeated thermal cycling during multistage epitaxial growth
    Patent number: 5091333
    Abstract: Dislocation densities are reduced in growing semiconductors from the vapor phase by employing a technique of interrupting growth, cooling the layer so far deposited, and then repeating the process until a high quality active top layer is achieved. The method of interrupted growth, coupled with thermal cycling, permits dislocations to be trapped in the initial stages of epitaxial growth.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: February 25, 1992
    Assignee: Massachusetts Institute of Technology
    Inventors: John C. C. Fan, Bor-Yeu Tsaur, Ronald P. Gale, Frances M. Davis
  • Reducing dislocations in semiconductors utilizing repeated thermal cycling during multistage epitaxial growth
    Patent number: 4632712
    Abstract: Dislocation densities are reduced in growing semiconductors from the vapor phase by employing a technique of interrupting growth, cooling the layer so far deposited, and then repeating the process until a high quality active top layer is achieved. The method of interrupted growth, coupled with thermal cycling, permits dislocations to be trapped in the initial stages of epitaxial growth.
    Type: Grant
    Filed: December 4, 1984
    Date of Patent: December 30, 1986
    Assignee: Massachusetts Institute of Technology
    Inventors: John C. C. Fan, Bor-Yeu Tsaur, Ronald P. Gale, Frances M. Davis
  • Detection of human cancer cells with antibodies to human cancer nucleolar antigens
    Patent number: 4448890
    Abstract: Specific common nucleolar antigens are found in a broad range of human malignant tumor specimens and have been isolated, extracted and purified. Antibodies and antisera specific to these nucleolar antigens are harvested from non-human hosts and used for detection of human cancer cells. Disclosed are (1) methods for isolating the nucleolar antigens, obtaining them in substantially purified form, producing the specific antibodies, obtaining them in substantially purified form, and using the antisera and antibodies induced by the nucleolar antigens in diagnostic procedures for detecting human cancer cells, and (2) diagnostic kits comprising specific antibodies and antisera.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: May 15, 1984
    Assignee: Baylor College of Medicine
    Inventors: Karel Smetana, Harris Busch, Rose K. Busch, Ferenc Gyorkey, Phyllis Gyorkey, Frances M. Davis