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:
Oct. 25, 1983
Filed:
Feb. 09, 1981
Applicant:
Inventors:
Peter Hubert, Bremen, DE;
Otto Vitzthum, Bremen, DE;
Assignee:
HAG Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A23F / ; A23F / ;
U.S. Cl.
CPC ...
426271 ; 426427 ; 426478 ; 426481 ;
Abstract
A process for extracting caffeine from raw coffee, roast coffee, tea and the like. Super-critical carbon dioxide is used as extracting agent, and ion-exchangers are used to absorb the caffeine, and are subsequently regenerated by use of aqueous regenerating agents.
Hubert, Peter. (1983). Process for the extraction of caffeine from super-critical solutions (U.S. Patent No. 4411923). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4411923
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile