The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2000
Filed:
Jan. 14, 1998
Applicant:
Inventors:
Jackie R See, Reno, NV (US);
Darryl M See, Laguna Niguel, CA (US);
Assignee:
Bio-Sphere Technology, Inc., Reno, NV (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
424450 ; 4242251 ; 4242261 ; 4242271 ; 4242281 ;
Abstract
A method is provided for inducing a systemic immune response to an antigen selected from hepatitis B and hepatitis C antigens in a mammal. The method comprises orally administering lyophilized multilamellar liposomes containing the antigen. The liposomes have a size of from 20 nm to 20 microns. The antigen-containing liposomes are absorbed in the Peyer's patches of the gut. Sufficient antigen-containing liposomes are taken up by macrophages in the Peyer's patches to induce a systemic immune response to the antigen.