Patents by Inventor Gang Duan

Gang Duan 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).

  • Publication number: 20150152457
    Abstract: Provided herein are compositions and methods related to the direct conversion of the starch in a ground or fractionated grain into a fermentable sugar feedstock capable of serving as a carbon source for the industrial production of one or more products by a fermenting organism. Such conversions may be performed at temperatures at or below the initial gelatinization temperature of the starch present in the grain and may utilize one or more isolatable endogenous enzymes present in certain unrefined grains.
    Type: Application
    Filed: March 13, 2013
    Publication date: June 4, 2015
    Applicant: Danisco US Inc.
    Inventors: Collette Michelle Blake, Gang Duan, Douglas Ko, Floor K. Kooy, Sung Ho Lee, Michael Jay Pepsin, Ying Qian, Matthew T. Reboli, Vivek Sharma, Jayarama K. Shetty, Bruce A. Strohm, Paula Johanna Maria Teunissen, Hongxian Xu
  • Patent number: 9049220
    Abstract: A method for processing network traffic data includes receiving a packet, and determining whether the packet is a previously dropped packet that is being retransmitted. A method for processing network traffic content includes receiving a plurality of headers, the plurality of headers having respective first field values, and determining whether the first field values of the respective headers form a first prescribed pattern. A method for processing network traffic content includes receiving a plurality of packets, and determining an existence of a flooding attack without tracking each of the plurality of packets with a SYN bit.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: June 2, 2015
    Assignee: Fortinet, Inc.
    Inventors: Shaohong Wei, Gang Duan, Zhong Qiang Chen, Bing Xie
  • Patent number: 8980598
    Abstract: A dry solids staging fermentation process for producing an end-product, such as ethanol is disclosed said process including an initial fermentation step including combining a first fermentable substrate with one or more starch hydrolyzing enzymes and fermenting organisms in a fermentation vessel and a loading step which includes adding a second fermentable substrate to the fermentation vessel wherein the percent dry solids (% DS) of the fermentation broth increases over time.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: March 17, 2015
    Assignee: Danisco US Inc.
    Inventors: Gopal Chotani, Gang Duan, Craig E. Pilgrim, Jayarama K. Shetty
  • Patent number: 8951764
    Abstract: Embodiments of the present disclosure relate to a process for producing isoprenoid precursor molecules and/or isoprenoids from a starch substrate by saccharification and/or fermentation. The saccharification is effectively catalyzed by a glucoamylase at a pH in the range of 5.0 to 8.0. At a pH of 6.0 or above, the glucoamylase possesses at least 50% activity relative to its maximum activity. The saccharification and fermentation may be performed as a simultaneous saccharification and fermentation (SSF) process.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: February 10, 2015
    Assignee: Danisco US Inc.
    Inventors: Martien H. Bergsma, Anthony R. Calabria, Gopal K. Chotani, William A. Cuevas, Gang Duan, Sung Ho Lee, Ying Qian, Vivek Sharma, Jayarama K. Shetty, Bruce A. Strohm, Paula Johanna Maria Teunissen, Hongxian Xu
  • Patent number: 8917725
    Abstract: A method for processing network traffic data includes receiving a packet, and determining whether the packet is a previously dropped packet that is being retransmitted. A method for processing network traffic content includes receiving a plurality of headers, the plurality of headers having respective first field values, and determining whether the first field values of the respective headers form a first prescribed pattern. A method for processing network traffic content includes receiving a plurality of packets, and determining an existence of a flooding attack without tracking each of the plurality of packets with a SYN bit.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: December 23, 2014
    Assignee: Fortinet, Inc.
    Inventors: Shaohong Wei, Gang Duan, Zhongqiang Chen, Bing Xie
  • Patent number: 8916369
    Abstract: A maltogenic a-amylase from Trichoderma reesei (TrAA) and variants thereof are useful in the production of high-maltose syrups from liquefied starch. Particularly high maltose concentrations are achieved when TrAA is used in the presence of a pullulanase. Expression hosts and encoding nucleic acids useful for producing TrAA and its variants also are provided.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: December 23, 2014
    Assignee: Danisco US Inc.
    Inventors: Gang Duan, Kathy Qian, Martijn Scheffers, Jayarama K. Shetty, Pieter Van Solingen
  • Patent number: 8898027
    Abstract: A method and a system for a comprehensive analysis of low frequency oscillation. The method includes: firstly, initiating a wide area measurement system WAMS (71) to perform real-time monitoring; transmitting real-time low frequency oscillation information to a dynamic early-warning system (72) periodically; then converting the low frequency oscillation information received by the dynamic early-warning system (72) into an input file for stability calculation with small disturbance, and performing related calculation; finally, transmitting the calculated result back to the wide area measurement system WAMS (71) and a human-machine system interface for output. The system includes: the wide area measurement system WAMS (71), the dynamic early-warning system (72), a system for stability calculation with small disturbance (73) and an output system (74).
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: November 25, 2014
    Assignee: State Grid Corporation of China
    Inventors: Yaozhong Xin, Fang Li, Jingtao Wu, Hongzhu Tao, Jianfeng Yan, Gang Duan, Fang Tian, Yu Dong, Wei Zhang
  • Publication number: 20140283043
    Abstract: A method for processing network traffic data includes receiving a packet, and determining whether the packet is a previously dropped packet that is being retransmitted. A method for processing network traffic content includes receiving a plurality of headers, the plurality of headers having respective first field values, and determining whether the first field values of the respective headers form a first prescribed pattern. A method for processing network traffic content includes receiving a plurality of packets, and determining an existence of a flooding attack without tracking each of the plurality of packets with a SYN bit.
    Type: Application
    Filed: May 20, 2014
    Publication date: September 18, 2014
    Applicant: Fortinet, Inc.
    Inventors: Shaohong Wei, Gang Duan, Zhong Qiang Chen, Bing Xie
  • Publication number: 20140273145
    Abstract: Embodiments of the present disclosure relate to a process for producing isoprene from a starch substrate by saccharification and/or fermentation. The saccharification is effectively catalyzed by a glucoamylase at a pH in the range of 5.0 to 8.0. At a pH of 6.0 or above, the glucoamylase possesses at least 50% activity relative to its maximum activity. The saccharification and fermentation may be performed as a simultaneous saccharification and fermentation (SSF) process.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 18, 2014
    Applicants: THE GOODYEAR TIRE & RUBBER COMPANY, Danisco US Inc.
    Inventors: Martien H. BERGSMA, Anthony R. CALABRIA, Gopal K. CHOTANI, William A. CUEVAS, Gang DUAN, Sung Ho LEE, Ying QIAN, Vivek SHARMA, Jayarama K. SHETTY, Bruce A. STROHM, Paula Johanna Maria TEUNISSEN, Hongxian XU
  • Publication number: 20140259163
    Abstract: A method for processing network traffic data includes receiving a packet, and determining whether the packet or a session of the packet is associated with a flooding attack. Some embodiments are implemented on network switching devices.
    Type: Application
    Filed: May 20, 2014
    Publication date: September 11, 2014
    Applicant: Fortinet, Inc.
    Inventors: Shaohong Wei, Gang Duan, Zhong Qiang Chen, Bing Xie
  • Patent number: 8765439
    Abstract: A maltogenic ?-amylase from Trichoderma reesei (TrAA) and variants thereof in the presence of a glucoamylase are useful in the production of high-glucose syrups from liquefied starch, where the high-glucose syrups produced thereby contain at least about 97% glucose. In this process, TrAA advantageously suppresses the reversion of glucose to malto-oligosaccharides. Expression hosts and encoding nucleic acids useful for producing TrAA and its variants also are provided.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: July 1, 2014
    Assignee: Danisco US Inc.
    Inventors: Gang Duan, Kathy Qian, Martijn Scheffers, Jayarama K. Shetty, Pieter Van Solingen
  • Patent number: 8715755
    Abstract: Methods for the production of substrate, tuber, and grain compositions containing isomalto-oligosaccharides are described. The methods comprise (a) contacting a substrate, tuber or grain containing ungelatinized starch with a maltogenic enzyme and a starch liquefying enzyme to produce maltose; (b) contacting the maltose with a transglucosidic enzyme, wherein the steps (a) and (b) occur at a temperature less than or at a starch gelatinization temperature; and (c) obtaining a substrate, grain or tuber composition having an enzymatically produced isomalto-oligosaccharide, wherein the oligosaccharide is derived from the grain. The maltogenic enzyme can be either exogenous or endogenous to the grain. The contacting steps can be sequential or concurrent. The present invention also describes flour, oral rehydrating solutions, beer adjuncts, food, feed, beverage additives incorporating the grain compositions made as described.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: May 6, 2014
    Assignee: Danisco US Inc.
    Inventors: Gang Duan, Feng Li, Jayarama K. Shetty, Sridevi Vadakoot
  • Patent number: 8693348
    Abstract: Various embodiments illustrated and described herein include systems, methods and software for content type classification. Some such embodiments include determining a potential state of classification for packets associated with a session based at least in part on a packet associated with the session that is a packet other than the first packet of the session.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: April 8, 2014
    Assignee: Fortinet, Inc.
    Inventors: Shaohong Wei, Zhong Qiang Chen, Ping Ng, Gang Duan
  • Publication number: 20140092060
    Abstract: A touch panel includes a cover layer including a number of key areas, a circuit board, a touch-sensing layer arranged between the cover layer and the circuit board, and a number of button members corresponding to the key areas one by one. Each button member includes a post and a sensing portion. The touch-sensing layer generates a first signal to indicate a location of a user's touch when the touch panel is in a touch mode. The sensing portion generates a second signal when a corresponding key area is pressed when the touch panel is in a button mode.
    Type: Application
    Filed: September 26, 2013
    Publication date: April 3, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: KUAN-HONG HSIEH, RUEY-SHYANG YOU, BIN-GANG DUAN, ZONG-HUI DONG, ZI-FANG CAI, FAN-LIN LU
  • Publication number: 20140087023
    Abstract: The present invention relates to a process for producing a rice protein concentrate from a rice substrate comprising, enzymatically hydrolyzing a rice substrate with an enzyme having granular starch hydrolyzing (GSH) activity and a second starch hydrolyzing enzyme at a temperature at or below 72° C. and at a pH of about 3.0 to 6.5 to obtain a solubilized starch fraction and a residue fraction which includes insoluble protein, and separating the solubilized starch fraction from the residue to obtain a rice protein concentrate. The rice protein concentrate may be used in animal feed and human food formulations.
    Type: Application
    Filed: June 21, 2013
    Publication date: March 27, 2014
    Inventors: Gang DUAN, Nigel Dunn-Coleman, Jayarma K. Shetty, Alex Sung, Ying Qian
  • Publication number: 20140078907
    Abstract: Various embodiments illustrated and described herein include systems, methods and software for content type classification. Some such embodiments include determining a potential state of classification for packets associated with a session based at least in part on a packet associated with the session that is a packet other than the first packet of the session.
    Type: Application
    Filed: November 22, 2013
    Publication date: March 20, 2014
    Applicant: Fortinet, Inc.
    Inventors: Shaohong Wei, Zhong Qiang Chen, Ping Ng, Gang Duan
  • Publication number: 20140079056
    Abstract: Various embodiments illustrated and described herein include systems, methods and software for content type classification. Some such embodiments include determining a potential state of classification for packets associated with a session based at least in part on a packet associated with the session that is a packet other than the first packet of the session.
    Type: Application
    Filed: November 22, 2013
    Publication date: March 20, 2014
    Applicant: Fortinet, Inc.
    Inventors: Shaohong Wei, Zhong Qiang Chen, Ping Ng, Gang Duan
  • Publication number: 20140053271
    Abstract: A method for processing network traffic data includes receiving a packet, and determining whether the packet is a previously dropped packet that is being retransmitted. A method for processing network traffic content includes receiving a plurality of headers, the plurality of headers having respective first field values, and determining whether the first field values of the respective headers form a first prescribed pattern. A method for processing network traffic content includes receiving a plurality of packets, and determining an existence of a flooding attack without tracking each of the plurality of packets with a SYN bit.
    Type: Application
    Filed: October 30, 2013
    Publication date: February 20, 2014
    Applicant: Fortinet, Inc.
    Inventors: Shaohong Wei, Gang Duan, Zhong Qiang Chen, Bing Xie
  • Patent number: 8639752
    Abstract: Various embodiments illustrated and described herein include systems, methods and software for content type classification. Some such embodiments include determining a potential state of classification for packets associated with a session based at least in part on a packet associated with the session that is a packet other than the first packet of the session.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: January 28, 2014
    Assignee: Fortinet, Inc.
    Inventors: Shaohong Wei, Zhongqiang Chen, Ping Ng, Gang Duan
  • Publication number: 20130340078
    Abstract: A method for processing network traffic data includes receiving a packet, and determining whether the packet is a previously dropped packet that is being retransmitted. A method for processing network traffic content includes receiving a plurality of headers, the plurality of headers having respective first field values, and determining whether the first field values of the respective headers form a first prescribed pattern. A method for processing network traffic content includes receiving a plurality of packets, and determining an existence of a flooding attack without tracking each of the plurality of packets with a SYN bit.
    Type: Application
    Filed: March 12, 2013
    Publication date: December 19, 2013
    Applicant: Fortinet, Inc.
    Inventors: Shaohong Wei, Gang Duan, Zhong Qiang Chen, Bing Xie