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:
Jun. 12, 2007
Filed:
Oct. 12, 2005
Harold N. Conkle, Columbus, OH (US);
Joseph E. Schultz, Camarillo, CA (US);
Scott J. Blonigen, Hilliard, OH (US);
Fred H. Weber, Terre Haute, IN (US);
David R. Kilanowski, Dublin, OH (US);
Bruce Monzyk, Delaware, OH (US);
Timothy M. Werner, Traverse City, MI (US);
Chad M. Cucksey, Columbus, OH (US);
Hamish A. I. Mcarthur, Mystic, CT (US);
Ted L. Tewksbury, Columbus, OH (US);
Harold N. Conkle, Columbus, OH (US);
Joseph E. Schultz, Camarillo, CA (US);
Scott J. Blonigen, Hilliard, OH (US);
Fred H. Weber, Terre Haute, IN (US);
David R. Kilanowski, Dublin, OH (US);
Bruce Monzyk, Delaware, OH (US);
Timothy M. Werner, Traverse City, MI (US);
Chad M. Cucksey, Columbus, OH (US);
Hamish A. I. McArthur, Mystic, CT (US);
Ted L. Tewksbury, Columbus, OH (US);
Pfizer, Inc., New York, NY (US);
Abstract
A vaccine for in ovo vaccination against avian coccidiosis produced by a method including obtaining the coccidial oocysts from a fecal suspension, homogenizing the fecal suspension, separating the oocysts from the fecal debris by either salt flotation using sodium sulfate or gas flotation using air, sporulating the oocysts using hydrogen peroxide and air sparging, bleaching the sporulated oocysts, washing the bleached oocysts, concentrating the sterile washed oocysts and combining the concentrates of various species of coccidial oocysts, and producing a vaccine. The method in whole or in part can be applied to other kinds of encysted protozoa to produce vaccines for various types of animals.