Patents by Inventor Yuying Zhang

Yuying Zhang 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).

  • Patent number: 10537593
    Abstract: Provided are a method, target and application for NO accumulation to decrease invasiveness of Pseudomonas aeruginosa; achieving NO accumulation by means of external NO donors or disruption of internal NO metabolism in an environment where Pseudomonas aeruginosa is growing or being cultured, in order to decrease production by Pseudomonas aeruginosa of the invasion factor pyocyanin. Utilizing even micro-quantities of NO can significantly inhibit Pseudomonas aeruginosa PCN (PCN synthesis down 82% with 60 ?M SNP treatment); by inhibiting NO reductase, an enzyme related to NO metabolism, PCN synthesis can be significantly inhibited (the PAO1-?nor strain has 84% PCN reduction). Using NO donors or inhibiting enzymes involved in Pseudomonas aeruginosa NO metabolism as a means of combating bacterial infectious disease does not affect the body's normal microflora like traditional antibiotics.
    Type: Grant
    Filed: October 22, 2016
    Date of Patent: January 21, 2020
    Inventors: Yi Wan, Chang Chen, Lei Gao, Yuying Zhang, Xinhua Qiao, Yan Wang
  • Publication number: 20190119586
    Abstract: The present disclosure relates to a process for producing catalytic cracking gasoline comprising the following steps: i) subjecting a heavy feedstock oil to a catalytic cracking reaction in the presence of a first catalytic cracking catalyst to obtain a first reaction product; ii) subjecting a hydrogenated cycle oil to a catalytic cracking reaction in the presence of a second catalytic cracking catalyst to obtain a second reaction product; iii) separating a mixture of the first reaction product and the second reaction product to obtain a catalytic cracking gasoline and a catalytic cracking light cycle oil; iv) subjecting the catalytic cracking light cycle oil or a fraction thereof to hydrogenation to obtain a hydrogenated product; and v) recycling the hydrogenated product to the step ii) as the hydrogenated cycle oil. The present disclosure also relates to a catalytic cracking system for carrying out the process.
    Type: Application
    Filed: October 24, 2018
    Publication date: April 25, 2019
    Inventors: Jianhong GONG, Zekun LI, Jinlian TANG, Anguo MAO, Jiushun ZHANG, Yuying ZHANG, Jun LONG
  • Publication number: 20190093028
    Abstract: The present disclosure relates to a catalytic cracking process comprising the following steps: i) subjecting a heavy feedstock oil to a catalytic cracking reaction to obtain a catalytic cracking reaction product; ii) separating the catalytic cracking reaction product to obtain a catalytic cracking gasoline and a catalytic cracking light cycle oil; iii) splitting the catalytic cracking gasoline to obtain a light gasoline fraction, a medium gasoline fraction and a heavy gasoline fraction; iv) subjecting the catalytic cracking light cycle oil to hydrogenation to obtain a hydrogenated light cycle oil); v) mixing a portion of the light gasoline fraction with at least a portion of the hydrogenated light cycle oil to obtain a mixed fraction; vi) subjecting the mixed fraction to a catalytic cracking reaction; and vii) subjecting a portion of the medium gasoline fraction to a catalytic cracking reaction.
    Type: Application
    Filed: September 25, 2018
    Publication date: March 28, 2019
    Inventors: Jianhong GONG, Anguo MAO, Jinlian TANG, Zekun LI, Yuying ZHANG
  • Publication number: 20180311275
    Abstract: Provided are a method, target and application for NO accumulation to decrease invasiveness of Pseudomonas aeruginosa (P. aeruginosa); achieving NO accumulation by means of external NO donors or disruption of internal NO metabolism in an environment where P. aeruginosa is growing or being cultured, in order to decrease production by P. aeruginosa of the invasion factor pyocyanin. Utilizing even micro-quantities of NO can significantly inhibit P. aeruginosa PCN (PCN synthesis down 82% with 60 ?M SNP treatment); by inhibiting NO reductase, an enzyme related to NO metabolism, PCN synthesis can be significantly inhibited (the PAO1 ?nor strain has 84% PCN reduction). Using NO donors or inhibiting enzymes involved in P. aeruginosa NO metabolism as a means of combating bacterial infectious disease does not affect the body's normal microflora like traditional antibiotics.
    Type: Application
    Filed: October 22, 2016
    Publication date: November 1, 2018
    Inventors: Yi WAN, Chang CHEN, Lei GAO, Yuying ZHANG, Xinhua QIAO, Yan WANG
  • Publication number: 20150080744
    Abstract: The present invention is directed to an all-fiber-optic scanning endomicroscope capable of high-resolution second harmonic generation (SHG) imaging of biological tissues. The endomicroscope has an overall 2.0 mm diameter and consists of a single customized double-clad fiber, a compact rapid two-dimensional beam scanner, and a miniature compound objective lens for excitation beam delivery, scanning, focusing, and efficient SHG signal collection. Endomicroscopic SHG images of murine cervical tissue sections at different stages of normal pregnancy reveal progressive, quantifiable changes in cervical collagen morphology with resolution similar to that of bench-top SHG microscopy. A device according to an embodiment of the present invention can also be used to assess other pathologies, such as cancer. fibrosis, and inflammation. The present invention allows for diagnosis, monitoring of the effect of therapeutics, and surgical or interventional guidance.
    Type: Application
    Filed: August 7, 2014
    Publication date: March 19, 2015
    Inventors: Xingde Li, Yuying Zhang, Wenxuan Liang, Mala Mahendroo, Kate Luby-Phelps, Meredith Akins
  • Patent number: 7998722
    Abstract: Strains of Zymomonas were engineered by introducing a chimeric xylose isomerase gene that contains a mutant promoter of the Z. mobilis glyceraldehyde-3-phosphate dehydrogenase gene. The promoter directs increased expression of xylose isomerase, and when the strain is in addition engineered for expression of xylulokinase, transaldolase and transketolase, improved utilization of xylose is obtained.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: August 16, 2011
    Assignees: E. I. du Pont de Nemours and Company, Alliance for Sustainable Energy LLC
    Inventors: Paul V. Viitanen, Luan Tao, Yuying Zhang, Perry G. Caimi, Carol M. McCutchen, Laura McCole, Min Zhang, Yat-Chen Chou, Mary Ann Franden
  • Patent number: 7989206
    Abstract: Identified are mutants of the promoter of the Z. mobilis glyceraldehyde-3-phosphate dehydrogenase gene, which direct improved expression levels of operably linked heterologous nucleic acids. These are high expression promoters useful for expression of chimeric genes in Zymomonas, Zymobacter, and other related bacteria.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: August 2, 2011
    Assignee: E.I. du Pont de Nemours and Company Alliance for Sustainable Energy LLC
    Inventors: Paul V. Viitanen, Luan Tao, Yuying Zhang, Perry G. Caimi, Laura McCole, Min Zhang, Yat-Chen Chou, Carol M. McCutchen, Mary Ann Franden
  • Patent number: 7897396
    Abstract: Through screening of a Zymomonas mutant library the himA gene was found to be involved in the inhibitory effect of acetate on Zymomonas performance. Xylose-utilizing Zymomonas strains further engineered to reduce activity of the himA gene were found to have increased ethanol production in comparison to a parental strain, when cultured in mixed-sugars medium comprising xylose, and, in particular, in the presence of acetate.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: March 1, 2011
    Assignees: E.I. du Pont de Nemours and Company
    Inventors: Perry G. Caimi, Yat-Chen Chou, Mary Ann Franden, Kyle Knoke, Luan Tao, Paul V. Viitanen, Min Zhang, Yuying Zhang
  • Publication number: 20100323794
    Abstract: A sensor based human motion detection gaming with false positive detection uses a single sensor or a combination of sensors to measure the physical motions of the player and then uses this motion as input in an interactive game. The interactive game resides on a mobile host such as a mobile phone. The system uses algorithms on the data gathered by the sensors to determine the current physical activity being performed by the player. Game play progression is then based on the physical activity being performed. The system also filters data to detect cheating patterns that may be used by a player to gain an unfair advantage in a game that uses such a system.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 23, 2010
    Inventor: Yui-Zhang Su
  • Patent number: 7803623
    Abstract: Through screening of a Zymomonas mutant library the himA gene was found to be involved in the inhibitory effect of acetate on Zymomonas performance. Xylose-utilizing Zymomonas further engineered to reduce activity of the himA gene were found to have increased ethanol production in comparison to a parental strain, when cultured in medium comprising xylose and acetate.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: September 28, 2010
    Assignees: E.I. du Pont de Nemours and Company, Alliance for Sustainable Energy LLC
    Inventors: Perry G. Caimi, Yat-Chen Chou, Mary Ann Franden, Kyle Knoke, Luan Tao, Paul V. Viitanen, Min Zhang, Yuying Zhang
  • Patent number: 7615365
    Abstract: This invention relates to a method for utilizing less purified starch in fermentation processes. One example is a recombinant E. coli containing a exogenous extracellular isoamylase activity that is capable of utilizing small oligomers containing (1,6) linkages (including but not limited to isomaltose and panose) in fermentations to produce useful products. The invention is useful in large-scale industrial biofermentations by reducing the cost of the substrate carbohydrate.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: November 10, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Perry G. Caimi, Mario W. Chen, Vasantha Nagarajan, Jean-Francois Tomb, Siqun Wang, Yuying Zhang
  • Publication number: 20090221078
    Abstract: Through screening of a Zymomonas mutant library the himA gene was found to be involved in the inhibitory effect of acetate on Zymomonas performance. Xylose-utilizing Zymomonas further engineered to reduce activity of the himA gene were found to have increased ethanol production in comparison to a parental strain, when cultured in medium comprising xylose and acetate.
    Type: Application
    Filed: October 30, 2008
    Publication date: September 3, 2009
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Perry G. Caimi, Yat-Chen Chou, Mary Ann Franden, Kyle Knoke, Luan Tao, Paul V. Viitanen, Min Zhang, Yuying Zhang
  • Publication number: 20090203099
    Abstract: Through screening of a Zymomonas mutant library the himA gene was found to be involved in the inhibitory effect of acetate on Zymomonas performance. Xylose-utilizing Zymomonas strains further engineered to reduce activity of the himA gene were found to have increased ethanol production in comparison to a parental strain, when cultured in mixed-sugars medium comprising xylose, and, in particular, in the presence of acetate.
    Type: Application
    Filed: October 30, 2008
    Publication date: August 13, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Perry G. Caimi, Yat-Chen Chou, Mary Ann Franden, Kyle Knoke, Luan Tao, Paul V. Viitanen, Min Zhang, Yuying Zhang
  • Publication number: 20090068704
    Abstract: This invention relates to a method for utilizing less purified starch in fermentation processes. One example is a recombinant E. coli containing a exogenous extracellular isoamylase activity that is capable of utilizing small oligomers containing (1,6) linkages (including but not limited to isomaltose and panose) in fermentations to produce useful products. The invention is useful in large-scale industrial biofermentations by reducing the cost of the substrate carbohydrate.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 12, 2009
    Applicant: EI duPont / Legal
    Inventors: Perry G. Caimi, Mario W. Chen, Vasantha Nagarajan, Jean-Francois Tomb, Siqun Wang, Yuying Zhang
  • Patent number: 7268221
    Abstract: This invention relates to a method for utilizing less purified starch in fermentation processes. One example is a recombinant E. coli containing a exogenous extracellular isoamylase activity that is capable of utilizing small oligomers containing (1,6) linkages (including but not limited to isomaltose and panose) in fermentations to produce useful products. The invention is useful in large-scale industrial biofermentations by reducing the cost of the substrate carbohydrate.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: September 11, 2007
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Perry G. Caimi, Mario W. Chen, Vasantha Nagarajan Nigarajan, Jean-Francois Tomb, Siqun Wang, Yuying Zhang
  • Publication number: 20040171023
    Abstract: This invention relates to a method for utilizing less purified starch in fermentation processes. One example is a recombinant E. coli containing a exogenous extracellular isoamylase activity that is capable of utilizing small oligomers containing (1,6) linkages (including but not limited to isomaltose and panose) in fermentations to produce useful products. The invention is useful in large-scale industrial biofermentations by reducing the cost of the substrate carbohydrate.
    Type: Application
    Filed: August 25, 2003
    Publication date: September 2, 2004
    Inventors: Perry G. Caimi, Mario W. Chen, Vasantha Nigarajan, Jean-Francois Tomb, Siqun Wang, Yuying Zhang