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. 09, 1992
Filed:
Jan. 29, 1991
Applicant:
Inventors:
Volker Heemann, Reinbek, DE;
Gerald Schmekel, Elmshorn, DE;
Uwe Ehling, Elmshorn, DE;
Bernhard Hauser, Schenefeld, DE;
Casper H Koene, Hamburg, DE;
Helge Rabitz, Hamburg, DE;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24B / ;
U.S. Cl.
CPC ...
131297 ; 131298 ; 131900 ;
Abstract
A method is described for extracting tobacco alkaloids from tobacco in which the tobacco alkaloids are extracted from the tobacco with carbon dioxide under supercritical conditions and the tobacco alkaloids separated from the carbon dioxide, wherein in the carbon dioxide for the extraction of the tobacco alkaloids from the tobacco is mixed with a solid 2 to 3-basic organic acid having a total of 2 to 6 carbon atoms, a monoalkali or monoammonium salts thereof in order to appreciably shorten the extraction times.