Patents by Inventor Alois G. Burger

Alois G. Burger 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).

  • Infectious bronchitis vaccines
    Patent number: 4751079
    Abstract: The present invention concerns infectious bronchitis vaccines derived from infectious bronchitis viruses which spontaneously hemagglutinate chicken erythrocytes, and processes for the preparation thereof, novel infectious bronchitis virus strains which spontaneously hemagglutinate chicken erythrocytes, and a method for immunization of egg-laying birds against infectious bronchitis.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: June 14, 1988
    Assignee: AKZO N.V.
    Inventors: Alois G. Burger, Frans G. Davelaar, Heinrich D. Lutticken