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.

Date of Patent:
Jul. 17, 1984

Filed:

Sep. 14, 1983
Applicant:
Inventor:

Lars K Ehnstrom, Tullinge, SE;

Assignee:

Alfa Laval AB, Tumba, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ;
U.S. Cl.
CPC ...
435161 ; 435162 ; 435813 ;
Abstract

A continuous process for producing ethanol by fermenting carbohydrate containing feed stocks at atmospheric pressure in a fermentor, in which a fermentation liquor stream is withdrawn from the fermentor, a yeast concentrate is recovered from said stream both recycled to the fermentor and the yeast-free remainder treated to remove ethanol and leave a stillage stream, a large portion of which is recycled to the fermentor, enabling high concentration of fermentable material to be supplied to the fermentor and reducing the amount of water required for the process.


Find Patent Forward Citations

Ehnstrom, Lars. (1984). Fermentation method (U.S. Patent No. 4460687). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4460687

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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