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:
Aug. 19, 1980
Filed:
Jan. 17, 1978
Applicant:
Inventors:
Derek R Laws, Bexleyheath, GB;
Nigel A Bath, London, GB;
Colin S Ennis, Chislehurst, GB;
Alfred G Wheldon, Galley Wood, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12C / ; C12C / ;
U.S. Cl.
CPC ...
426600 ; 426655 ; 426429 ;
Abstract
A method of preparing a hop extract is described in which liquid carbon dioxide is passed at a temperature of from -5.degree. C. to +15.degree. C. through a column of hop material to extract .alpha.-acids contained therein. The method gives a primary extract which is of much higher purity than has been previously described particularly in comparison to presently commercially available solvent extracts.