Patents by Inventor Nasibuddin Qureshi

Nasibuddin Qureshi 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 CONTINUOUS SOLVENT PRODUCTION
    Publication number: 20090162912
    Abstract: A continuous process for production of solvents, particularly acetone-butanol-ethanol (ABE) using fermentation of solventogenic microorganisms and gas stripping is provided. The solventogenic microorganisms are inoculated in a nutrient medium containing assimilable carbohydrates (substrate) and optional other additives. Control of the solventogenic microorganism concentration in the fermentor (cell concentration) and the assimilable carbohydrate concentration in the fermentor, along with removal of solvents formed results in a continuous process for production of solvents.
    Type: Application
    Filed: December 24, 2008
    Publication date: June 25, 2009
    Applicant: BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Thaddeus C. EZEJI, Nasibuddin QURESHI, Hans P. BLASCHEK
  • Process for continuous solvent production
    Publication number: 20050089979
    Abstract: A continuous process for production of solvents, particularly acetone-butanol-ethanol (ABE) using fermentation of solventogenic microorganisms and gas stripping is provided. The solventogenic microorganisms are inoculated in a nutrient medium containing assimilable carbohydrates (substrate) and optional other additives. Control of the solventogenic microorganism concentration in the fermentor (cell concentration) and the assimilable carbohydrate concentration in the fermentor, along with removal of solvents formed results in a continuous process for production of solvents.
    Type: Application
    Filed: September 20, 2004
    Publication date: April 28, 2005
    Inventors: Thaddeus Ezeji, Nasibuddin Qureshi, Hans Blaschek
  • Silicalite membrane and method for the selective recovery and concentration of acetone and butanol from model ABE solutions and fermentation broth
    Patent number: 5755967
    Abstract: Silicalite, silicalite filled polymer membrane, and process for the selective adsorption of acetone and butanol from aqueous solutions thereof. The silicalite, silicalite filled polymer membrane, and process are particularly suited to the removal of acetone and butanol from Clostridium acetobutylicum fermentation media in that the membrane is not fouled by the fermentation media and may be used without removing the cells from the fermentation media. The silicalite and silicalite filled polymer membrane show excellent selectivity to the adsorption of acetone and butanol relative to the ethanol, acetic acid, and butyric acid components of the fermentation media.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: May 26, 1998
    Inventors: Michael M. Meagher, Nasibuddin Qureshi, Robert Hutkins