Patents by Inventor Wei Wei Qi

Wei Wei Qi 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: 7592784
    Abstract: An electrical power generator includes a controller for making a full power capacity of the generator available for consumption by at least one intelligent load coupled to an output of the generator. The controller obtains data from which both a present output power of the generator and a power capacity of the generator can be determined. The controller then provides the intelligent load with data indicative of both the present output power and the power capacity of the generator for use by the load in controlling its power consumption.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: September 22, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Wei Wei Qi, Michael Rubbo, Richard Wainwright
  • Publication number: 20090045783
    Abstract: An electrical power generator includes a controller for making a full power capacity of the generator available for consumption by at least one intelligent load coupled to an output of the generator. The controller obtains data from which both a present output power of the generator and a power capacity of the generator can be determined. The controller then provides the intelligent load with data indicative of both the present output power and the power capacity of the generator for use by the load in controlling its power consumption.
    Type: Application
    Filed: September 24, 2008
    Publication date: February 19, 2009
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Wei Wei Qi, Michael Rubbo, Richard Wainwright
  • Patent number: 7486053
    Abstract: An electrical power generator includes a controller for making a full power capacity of the generator available for consumption by at least one intelligent load coupled to an output of the generator. The controller obtains data from which both a present output power of the generator and a power capacity of the generator can be determined. The controller then provides the intelligent load with data indicative of both the present output power and the power capacity of the generator for use by the load in controlling its power consumption.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: February 3, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Wei Wei Qi, Michael Rubbo, Richard Wainwright
  • Patent number: 7303900
    Abstract: Genes encoding phenylalanine ammonia-lyase (PAL), tyrosine ammonia lyase (TAL) and phenylalanine hydroxylase (PAH) have been introduced into a host organism for the production of Para-hydroxycinnamic acid (PHCA). The introduction of these genes results in the redirection of carbon flow in the host, optimizing the flow of carbon from glucose to PHCA. The intermediates, tyrosine and cinnamic acid are also produced.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: December 4, 2007
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Wei Wei Qi, Fateme Sima Sariaslani, Xiao-Song Tang
  • Patent number: 7272514
    Abstract: An electrical power generator is characterized by a plurality of system parameters. The generator includes a controller for protecting the generator. The controller obtains data from which a present operating point of the generator and a power generating capacity of the generator can be determined. The controller further monitors data indicative of at least one system parameter as a function of time to detect an abnormality in a value of the system parameter. The controller then categorizes a type of event that caused the abnormality with respect to the data indicative of the system parameter as a function of time, the present operating point, and the power generating capacity. Finally, the controller provides a response for addressing the type of event that caused the abnormality.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: September 18, 2007
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Wei Wei Qi, Michael Rubbo, Richard Wainwright
  • Patent number: 7229806
    Abstract: An in vivo method for the production of pHS via a recombinant host cell is disclosed. The host cell expresses at least one gene encoding a polypeptide having para-hydroxycinnamic acid decarboxylase activity in combination with either at least one gene encoding a polypeptide having tyrosine ammonia lyase activity or at least one gene encoding a polypeptide having phenylalanine ammonia lyase activity.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: June 12, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Arie Ben-Bassat, Wei Wei Qi, Fateme Sima Sariaslani, Xiao-Song Tang, Todd M. Vannelli
  • Patent number: 7105326
    Abstract: Genes encoding phenylalanine ammonia-lyase (PAL), tyrosine ammonia lyase (TAL) and phenylalanine hydroxylase (PAH) have been introduced into a host organism for the production of Para-hydroxycinnamic acid (PHCA). The introduction of these genes results in the redirection of carbon flow in the host, optimizing the flow of carbon from glucose to PHCA. The intermediates, tyrosine and cinnamic acid are also produced.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: September 12, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Wei Wei Qi, Fateme Sima Sariaslani, Xiao-Song Tang
  • Patent number: 6951751
    Abstract: A novel tyrosine-inducible tyrosine ammonia lyase enzyme was isolated from the yeast Trichosporon cutaneum. This enzyme has a higher activity for tyrosine than for phenylalanine and is useful for the production of para-hydroxycinnamic acid directly from tyrosine. The gene encoding this enzyme was sequenced using 3? and 5? RACE cloning of the TAL cDNA and the gene was expressed in the yeast Saccharomyces cerevisiae and in the bacterium Escherichia coli.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: October 4, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Sabine Breinig, Wei Wei Qi, Fateme Sima Sariaslani, Todd M. Vannelli, Zhixiong Xue
  • Publication number: 20040023357
    Abstract: A novel tyrosine-inducible tyrosine ammonia lyase enzyme was isolated from the yeast Trichosporon cutaneum. This enzyme has a higher activity for tyrosine than for phenylalanine and is useful for the production of para-hydroxycinnamic acid directly from tyrosine. The gene encoding this enzyme was sequenced using 3′ and 5′ RACE cloning of the TAL cDNA and the gene was expressed in the yeast Saccharomyces cerevisiae and in the bacterium Escherichia coli.
    Type: Application
    Filed: May 16, 2003
    Publication date: February 5, 2004
    Inventors: Sabine Breinig, Wei Wei Qi, Fateme Sima Sariaslani, Todd M. Vannelli, Zhixiong Xue
  • Publication number: 20040018600
    Abstract: An in vivo method for the production of pHS via a recombinant host cell is disclosed. The host cell expresses at least one gene encoding a polypeptide having para-hydroxycinnamic acid decarboxylase activity in combination with either at least one gene encoding a polypeptide having tyrosine ammonia lyase activity or at least one gene encoding a polypeptide having phenylalanine ammonia lyase activity.
    Type: Application
    Filed: May 16, 2003
    Publication date: January 29, 2004
    Inventors: Arie Ben-Bassat, Wei Wei Qi, Fateme Sima Sariaslani, Xiao-Song Tang, Todd M. Vannelli
  • Publication number: 20030170834
    Abstract: The present invention provides several methods for biological production of para-hydroxycinnamic acid (PHCA). The invention is also directed to the discovery of new fungi and bacteria that possess the ability to convert cinnamate to PHCA. The invention relates to developing of a new biocatalyst for conversion of glucose to PHCA by incorporation of the wild type PAL from the yeast Rhodotorula glutinis into E. coli underlining the ability of the wildtype PAL to convert tyrosine to PHCA. The invention is also directed to developing a new biocatalyst for conversion of glucose to PHCA by incorporation of the wildtype PAL from the yeast Rhodotorula glutinis plus the plant cytochrome P-450 and the cytochrome P-450 reductase into E. coli. In yet another embodiment, the present invention provides for the developing of a new biocatalyst through mutagenesis of the wild type yeast PAL which possesses enhanced tyrosine ammonia-lyase (TAL) activity.
    Type: Application
    Filed: July 3, 2002
    Publication date: September 11, 2003
    Inventors: Anthony A. Gatenby, F. Sima Sariaslani, Xiao-Song Tang, Wei Wei Qi, Todd Vannelli
  • Publication number: 20030079255
    Abstract: Genes encoding phenylalanine ammonia-lyase (PAL), tyrosine ammonia lyase (TAL) and phenylalanine hydroxylase (PAH) have been introduced into a host organism for the production of Para-hydroxycinnamic acid (PHCA). The introduction of these genes results in the redirection of carbon flow in the host, optimizing the flow of carbon from glucose to PHCA. The intermediates, tyrosine and cinnamic acid are also produced.
    Type: Application
    Filed: May 3, 2002
    Publication date: April 24, 2003
    Inventors: Wei Wei Qi, Fateme Sima Sariaslani, Xiao-Song Tang
  • Patent number: 6368837
    Abstract: The present invention provides several methods for biological production of para-hydroxycinnamic acid (PHCA). The invention is also directed to the discovery of new fungi and bacteria that possess the ability to convert cinnamate to PHCA. The invention relates to developing of a new biocatalyst for conversion of glucose to PHCA by incorporation of the wild type PAL from the yeast Rhodotorula glutinis into E. coli underlining the ability of the wildtype PAL to convert tyrosine to PHCA. The invention is also directed to developing a new biocatalyst for conversion of glucose to PHCA by incorporation of the wildtype PAL from the yeast Rhodotorula glutinis plus the plant cytochrome P-450 and the cytochrome P-450 reductase into E. coli. In yet another embodiment, the present invention provides for the developing of a new biocatalyst through mutagenesis of the wild type yeast PAL which possesses enhanced tyrosine ammonia-lyase (TAL) activity.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: April 9, 2002
    Assignee: E. I. du Pont Nemours and Company
    Inventors: Anthony A. Gatenby, Sima Sariaslani, Xiao-Song Tang, Wei Wei Qi, Todd Vannelli