Patents by Inventor David Culver

David Culver has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for providing ethanol
    Publication number: 20070144886
    Abstract: The invention is a process for the purification of ethanol. In one embodiment the process comprises boiling a degassed beer feed (106) in a pre-boiler (110) to provide a vapor by-pass fraction (112) that by-passes the conventional beer column and is fed into the rectifier column (124). The process allows free capacity in the rectifier column of new or established plants to be filled by ethanol-water vapor and/or condensate streams that do not originate from the beer column.
    Type: Application
    Filed: December 28, 2005
    Publication date: June 28, 2007
    Inventors: Robert Sylvester, Stephen Breske, David Culver, Bruce Vrana