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. 05, 2011
Filed:
May. 05, 2004
Dennis M. Adkesson, Decatur, IL (US);
James S. Disney, Decatur, IL (US);
Bryan C. Dravis, Fishers, IN (US);
James M. Gaddy, Decatur, IL (US);
William F. Lehnhardt, Lovington, IL (US);
Jefferson C. Lievense, Forsyth, IL (US);
Gregory M. Wenndt, Lafayette, IN (US);
Tyler T. Ames, Wilmington, DE (US);
Patrick Fitzgibbon, Hockessin, DE (US);
F. Glenn Gallagher, Wilmington, DE (US);
Michael L. Luyben, Wilmington, DE (US);
Mayis Seapan, Landenberg, PA (US);
Robert E. Trotter, Wilmington, DE (US);
Albert W. Alsop, Wilmington, DE (US);
Eugene K. Yu, Forsyth, IL (US);
Luis Alberto Chu, Landenberg, PA (US);
Dennis M. Adkesson, Decatur, IL (US);
James S. Disney, Decatur, IL (US);
Bryan C. Dravis, Fishers, IN (US);
James M. Gaddy, Decatur, IL (US);
William F. Lehnhardt, Lovington, IL (US);
Jefferson C. Lievense, Forsyth, IL (US);
Gregory M. Wenndt, Lafayette, IN (US);
Tyler T. Ames, Wilmington, DE (US);
Patrick Fitzgibbon, Hockessin, DE (US);
F. Glenn Gallagher, Wilmington, DE (US);
Michael L. Luyben, Wilmington, DE (US);
Mayis Seapan, Landenberg, PA (US);
Robert E. Trotter, Wilmington, DE (US);
Albert W. Alsop, Wilmington, DE (US);
Eugene K. Yu, Forsyth, IL (US);
Luis Alberto Chu, Landenberg, PA (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A process for purifying 1,3-propanediol from the fermentation broth of a culturedthat has been bioengineered to synthesize 1,3-propanediol from sugar is provided. The basic process entails filtration, ion exchange and distillation of the fermentation broth product stream, preferably including chemical reduction of the product during the distillation procedure. Also provided are highly purified compositions of 1,3-propanediol.