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, 2012
Filed:
Oct. 17, 2008
Pavel A. Krasutsky, Duluth, MN (US);
Igor V. Kolomitsyn, Duluth, MN (US);
Dmytro A. Krasutskyy, Duluth, MN (US);
Pavel A. Krasutsky, Duluth, MN (US);
Igor V. Kolomitsyn, Duluth, MN (US);
Dmytro A. Krasutskyy, Duluth, MN (US);
Regents of the University of Minnesota, St. Paul, MN (US);
Abstract
The invention provides improved processes for the extraction of betulin, lupeol, betulinic acid, suberinic acids, and/or other organic compounds and compositions from birch bark. In some embodiments, the birch bark can be physically processed prior to the extraction process, which can further improve the yield of the extraction. The bark processing can include, but is not limited to, one or more of pelletizing the bark, baling the bark, pucking the bark, or compressing the bark, to a form that is more dense per volume unit than prior to the processing.