Recovering purified antibodies from egg yolk
Patent 4357272 Issued on November 2, 1982. Estimated Expiration Date: 
November 2, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 2, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3415804 3819822 3880989 Vaccines, the process for preparing the same and the applications thereof Influenza virus vaccine Serological reagent and preparation thereof Injectable gamma globulin Patent #: 4165370 InventorAssigneeApplicationNo. 06/020786 filed on 03/15/1979US Classes:530/387.1, Immunoglobulin, antibody, or fragment thereof, other than immunoglobulin antibody, or fragment thereof that is conjugated or absorbed530/361, Separation, purification or synthesis530/389.3, Binds plasma protein, serum protein, or fibrin (e.g., clotting factor, fibrinolytic factor, complement factor, immunoglobulin, apolipoprotein, etc.)530/389.4, Binds virus or component or product thereof (e.g., virus-associated antigen, etc.)530/389.5, Binds bacterium or similar microorganism or component or product thereof (e.g., Pseudomonas, Chlamydia, Clostridium, bacterium-associated antigen, etc.)530/389.6, Binds hematopoietic cell or component or product thereof (e.g., erythrocyte, granulocyte, bone marrow cell, lymphocyte, leukemic cell, hematopoietic cell-surface antigen, hemoglobin, etc.)530/389.7, Binds cancer cell or component or product thereof (e.g., cell-surface antigen, etc.)530/389.8, Binds drug, hapten, hapten-carrier complex, or specifically-identified chemical structure (e.g., theophylline, digoxin, etc.)530/400, Metal containing, e.g., chromoproteins, ferritin, ferredoxins, etc.530/406, Oxygen containing reactant530/421, Polymeric, e.g., polyethylene glycol, etc.530/806, ANTIGENIC PEPTIDES OR PROTEINS530/825, Bacteria530/826, Viruses530/853, Ovary; eggs; embryos530/856, Snakes; venom530/861INVOLVING IGG3, IGG4, IGA, OR IGYExaminersPrimary: Fagelson, Anna P.Attorney, Agent or FirmInternational ClassesA23J 1/00 (20060101)A23J 1/09 (20060101) C07K 16/02 (20060101) G01N 33/531 (20060101) A61K 38/00 (20060101) Foreign Application Priority Data1978-03-22 ZAAbstractImmunological preparations are prepared by immunizing hens with an antigen, preferably to a stage of hyperimmunization. The eggs of the immunized hens are collected, the yolk is separated from the eggs, followed by separation of the lipid content of the yolk. The antibodies in the egg yolk are then rendered indispersable with the aid of a water-soluble linear filamentary non-charged polymer precipitant such as PEG and the indispersable antibodies are recovered. This precipitation of antibodies is preferably preceded by a precipitation of caseinaceous proteins at lower polymer concentrations.The immunological preparations are useful for diagnostic purposes and in appropriate cases also for the treatment of pathological conditions.Other References
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