Patents by Inventor Joseph Zichis

Joseph Zichis 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).

  • Heterophil antibody differentiation (HAD) test
    Patent number: 4228148
    Abstract: Three antigens, termed HA, MN and FN, are prepared for the serological diagnosis of infectious mononucleosis; the HA antigen being used to identify the heterophil antibodies and the FN and MN antigens are used to differentiate them.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: October 14, 1980
    Inventors: Joseph Zichis, deceased, Lillian K. Zichis, executrix
  • Preparation of Forssman antibody neutralizing antigen and product thereof
    Patent number: 4224305
    Abstract: Three antigens, termed HA, MN and FN, are prepared for the serological diagnosis of infectious mononucleosis; the HA antigen being used to identify the heterophil antibodies and the FN and MN antigens are used to differentiate them.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: September 23, 1980
    Inventors: Joseph Zichis, deceased, Lillian K. Zichis, executrix
  • Preparation of an infectious mononucleosis antibody neutralizing antigen and product thereof
    Patent number: 4224306
    Abstract: Three antigens, termed HA, MN and FN, are prepared for the serological diagnosis of infectious mononucleosis; the HA antigen being used to identify the heterophil antibodies and the FN and MN antigens are used to differentiate them.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: September 23, 1980
    Inventors: Joseph Zichis, deceased, by Lillian K. Zichis, executrix
  • Preparation of antigen and test for heterophil antibody
    Patent number: 4139606
    Abstract: Three antigens, termed HA, MN and FN, are prepared for the serological diagnosis of infectious mononucleosis; the HA antigen being used to identify the heterophil antibodies and the FN and MN antigens are used to differentiate them.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: February 13, 1979
    Inventors: Joseph Zichis, deceased, by Lillian K. Zichis, executrix
  • Method for the diagnosis of viral diseases
    Patent number: 4092409
    Abstract: Erythrocytes derived from certain animal or fowl blood are specially treated to produce a substance which is readily agglutinable by viruses and by certain types of antibodies. The substance possesses properties of stability, sensitivity and agglutinability which are utilized in a serological diagnostic test for viral diseases.
    Type: Grant
    Filed: September 14, 1973
    Date of Patent: May 30, 1978
    Assignee: Beckman Instruments, Inc.
    Inventor: Joseph Zichis
  • Diagnostic slide test for infectious mononucleosis
    Patent number: 3959456
    Abstract: Sheep or horse blood is specially treated to produce an antigen which is readily agglutinable by heterophil type antibodies present in the patient's serum. This antigen possesses properties of stability, sensitivity and agglutinability which are utilized in a serological diagnostic test for infectious mononucleosis. Two other antigens, prepared from beef blood from guinea pig tissues, are used in the test to differentiate the infectious mononucleosis type antibody from the Forssman type.
    Type: Grant
    Filed: June 20, 1974
    Date of Patent: May 25, 1976
    Assignee: Beckman Instruments, Inc.
    Inventor: Joseph Zichis