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:
Apr. 17, 1990
Filed:
Aug. 15, 1988
Applicant:
Inventors:
Paul H Todd, Jr, Kalamazoo, MI (US);
James A Guzinski, Kalamazoo, MI (US);
Assignee:
Kalamazoo Holdings, Inc., Kalamazoo, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568366 ; 568350 ; 568347 ; 568341 ; 568377 ; 426600 ;
Abstract
Beta acids, separated from hop extracts, are purified prior to hydrogenolysis by mixing with an aqueous solution of polyvalent metal ions, preferably edible ions such as magnesium or calcium ions, separating the aqueous beta acids from insoluble materials containing catalyst poisons, and recovering the thus-purified beta acids which are catalyst-poison free and in a form suitable for hydrogenolysis to 4-desoxy alpha acids.
Todd, Jr, Paul. (1990). Purification of beta acids for hydrogenolysis and such purified beta (U.S. Patent No. 4918240). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4918240
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile