Patents by Inventor Weidong Xu
Weidong Xu 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).
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Patent number: 8846370Abstract: The described invention provides genetically engineered microorganisms, including photosynthetic microorganisms, expressing 4-hydroxybenzoyl-CoA thioesterases and methods of using the genetically engineered microorganisms for producing free fatty acids and/or fatty acid derivatives.Type: GrantFiled: December 13, 2011Date of Patent: September 30, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Robert Christopher Brown, Rekha Seshadri, Carlos Chavez-Torres, Weidong Xu, Toby Richardson
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Patent number: 8771965Abstract: The present invention concerns the methods and compositions involving nucleic acids with long repeat sequences. In some embodiments of the invention, there are methods for generating such a nucleic acid, and in other methods, there are methods for using such a nucleic acid to screen for candidate therapeutic compounds. Furthermore the present invention relates to methods of screening for Notch inhibitors and other substances that may be used to treat muscle loss and wasting.Type: GrantFiled: March 14, 2012Date of Patent: July 8, 2014Assignee: The Board of Regents of the University of Texas SystemInventors: Partha Sarkar, Tetsuo Ashizawa, Weidong Xu
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Patent number: 8750315Abstract: Described are computer-based methods and apparatuses, including computer program products, for efficiently storing transport streams. A first sequence of one or more packets associated with the first transport stream is received, the first sequence comprising one or more data packets. A storage packet is generated by selecting one or more packets from the first sequence, the storage packet comprising a packet header and the one or more data packets. One or more null packet insertion locations are identified in a second sequence of one or more packets associated with a second transport stream. Null packet insertion information is generated based on the one or more null packet insertion locations, the information including data indicative of a reconstruction parameter related to reconstructing the second sequence from the storage packet by inserting one or more null packets that are not stored in the storage packet, wherein the packet header includes the null packet insertion information.Type: GrantFiled: January 23, 2009Date of Patent: June 10, 2014Assignee: Akamai Technologies, Inc.Inventors: Shirish Dandekar, Craig Frink, Santosh Krishnan, Weidong Xu, Qin-Fan Zhu
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Patent number: 8743906Abstract: Described are computer-based methods and apparatuses, including computer program products, for scalable seamless digital video stream splicing. Data packets in a first video stream of bits are rearranged. Placeholder packets are created in a second video stream of bits. The first video stream of bits and the second video stream of bits are combined to generate a spliced stream by inserting data packets from the first video stream of bits into the placeholder packets in the second video stream of bits.Type: GrantFiled: January 23, 2009Date of Patent: June 3, 2014Assignee: Akamai Technologies, Inc.Inventors: Steve Branam, Craig Frink, Santosh Krishnan, Weidong Xu, Jean Zhou, Qin-Fan Zhu
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Patent number: 8650602Abstract: Described are computer-based methods and apparatuses, including computer program products, for input queued content switching using a playlist. A retrieval sequence is generated using a plurality of content requests based on content location information. A first portion of content is requested to be queued at a first content source, and a second portion of content is requested to be queued at a second content source. A content stream of the first portion and the second portion of content is generated using the retrieval sequence. The generating includes selecting the first portion of content from a queue associated with the first content source and transferring the first portion of content to an output buffer, then terminating transfer of the first portion of content and initiating transfer of the second portion of content from a queue associated with the second content source. The portion of content in the output buffer is transmitted to a client device.Type: GrantFiled: February 27, 2009Date of Patent: February 11, 2014Assignee: Akamai Technologies, Inc.Inventors: Daniel Pond, Thomas V. Radogna, Weidong Xu, Qin-Fan Zhu, Steve Branam, Craig Frink, Michael G. Hluchyj, Santosh Krishnan
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Patent number: 8502015Abstract: A method induces cancer, such as ovarian cancer, in primates for testing of therapeutic treatments and preclinical research and development. A nanoparticle delivers plasmid DNA encoding oncogenes and siRNAs for tumor suppressor genes. For example, a biocompatible polymer, chitosan, is complexed with three plasmids including one that carries the cDNA encoding RAS oncogene and two plasmids encoding siRNAs for two tumor supressor genes p53 and Rb. Laproscopic delivery of these nanoparticles to the ovaries of non-human primates causes ovarian carcinoma, which is detected one month after delivery of the nanoparticles.Type: GrantFiled: July 6, 2010Date of Patent: August 6, 2013Inventor: Weidong Xu
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Patent number: 8402540Abstract: A flow processing facility, which uses a set of artificial neurons for pattern recognition, such as a self-organizing map, in order to provide security and protection to a computer or computer system supports unified threat management based at least in part on patterns relevant to a variety of types of threats that relate to computer systems, including computer networks. Flow processing for switching, security, and other network applications, including a facility that processes a data flow to address patterns relevant to a variety of conditions are directed at internal network security, virtualization, and web connection security. A flow processing facility for inspecting payloads of network traffic packets detects security threats and intrusions across accessible layers of the IP-stack by applying content matching and behavioral anomaly detection techniques based on regular expression matching and self-organizing maps.Type: GrantFiled: October 24, 2007Date of Patent: March 19, 2013Assignee: Crossbeam Systems, Inc.Inventors: Harsh Kapoor, Moisey Akerman, Stephen D. Justus, JC Ferguson, Yevgeny Korsunsky, Paul S. Gallo, Charles Ching Lee, Timothy M. Martin, Chunsheng Fu, Weidong Xu
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Publication number: 20130022960Abstract: Test kit has a cellulose filter paper with a flow rate of about 0.04 to about 0.4 ml/min/cm2, such that rapid screening may be made using bodily fluids, such as blood, serum and plasma. A process for using a rapid test kit may include a buffer diluting a sample and presenting it directly on a test area of the test kit, then adding a staining reagent, such as protein A conjugated with colloidal gold, and adding a destaining buffer. The rapid test uses whole blood, serum and plasma and is completed in less than two minutes. The use of whole blood provides for a test procedure capable of being used in the field and in doctor's offices as a simple, inexpensive screening test.Type: ApplicationFiled: March 27, 2012Publication date: January 24, 2013Applicant: Ultrapid Nanodiagnostics, Inc.Inventors: Weidong XU, Shyam Mohapatra, Arun Kumar
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Patent number: 8325764Abstract: Described are computer-based methods and apparatuses, including computer program products, for canonical scheduling for heterogeneous content delivery. A content stream of bits is preprocessed by dividing the content stream of bits into data packets and assigning a timestamp to each data packet. The preprocessed content stream of bits is transmitted upon request from a receiver. A second timestamp based on the assigned timestamp from at least a portion of the respective data packets is established. The data packets are scheduled for transmission based on the second timestamp. The data packets are transmitted based on the schedule.Type: GrantFiled: February 24, 2009Date of Patent: December 4, 2012Assignee: Verivue, Inc.Inventors: Craig Frink, Santosh Krishnan, Weidong Xu, Qin-Fan Zhu
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Publication number: 20120240185Abstract: A flow processing facility, which uses a set of artificial neurons for pattern recognition, such as a self-organizing map, in order to provide security and protection to a computer or computer system supports unified threat management based at least in part on patterns relevant to a variety of types of threats that relate to computer systems, including computer networks. Flow processing for switching, security, and other network applications, including a facility that processes a data flow to address patterns relevant to a variety of conditions are directed at internal network security, virtualization, and web connection security. A flow processing facility for inspecting payloads of network traffic packets detects security threats and intrusions across accessible layers of the IP-stack by applying content matching and behavioral anomaly detection techniques based on regular expression matching and self-organizing maps.Type: ApplicationFiled: March 9, 2012Publication date: September 20, 2012Inventors: Harsh Kapoor, Moisey Akerman, Stephen D. Justus, JC Ferguson, Yevgeny Korsunsky, Paul S. Gallo, Charles Ching Lee, Timothy M. Martin, Chunsheng Fu, Weidong Xu
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Publication number: 20120171222Abstract: The present invention concerns the methods and compositions involving nucleic acids with long repeat sequences. In some embodiments of the invention, there are methods for generating such a nucleic acid, and in other methods, there are methods for using such a nucleic acid to screen for candidate therapeutic compounds. Furthermore the present invention relates to methods of screening for Notch inhibitors and other substances that may be used to treat muscle loss and wasting.Type: ApplicationFiled: March 14, 2012Publication date: July 5, 2012Applicant: The Board of Regents of the University of Texas SystemInventors: Partha Sarkar, Tetsuo Ashizawa, Weidong Xu
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Publication number: 20120164713Abstract: The described invention provides genetically engineered microorganisms, including photosynthetic microorganisms, expressing 4-hydroxybenzoyl-CoA thioesterases and methods of using the genetically engineered microorganisms for producing free fatty acids and/or fatty acid derivatives.Type: ApplicationFiled: December 13, 2011Publication date: June 28, 2012Applicant: ExxonMobil Research and Engineering CompanyInventors: Robert Christopher Brown, Rekha Seshadri, Carlos Chavez-Torres, Weidong Xu, Toby Richardson
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Patent number: 8158364Abstract: The present invention concerns the methods and compositions involving nucleic acids with long repeat sequences. In some embodiments of the invention, there are methods for generating such a nucleic acid, and in other methods, there are methods for using such a nucleic acid to screen for candidate therapeutic compounds. Furthermore the present invention relates to methods of screening for Notch inhibitors and other substances that may be used to treat muscle loss and wasting.Type: GrantFiled: April 11, 2007Date of Patent: April 17, 2012Assignee: The Board of Regents of The University of Texas SystemInventors: Partha Sarkar, Tetsuo Ashizwa, Weidong Xu
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Patent number: 8135657Abstract: A flow processing facility, which uses a set of artificial neurons for pattern recognition, such as a self-organizing map, in order to provide security and protection to a computer or computer system supports unified threat management based at least in part on patterns relevant to a variety of types of threats that relate to computer systems, including computer networks. Flow processing for switching, security, and other network applications, including a facility that processes a data flow to address patterns relevant to a variety of conditions are directed at internal network security, virtualization, and web connection security. A flow processing facility for inspecting payloads of network traffic packets detects security threats and intrusions across accessible layers of the IP-stack by applying content matching and behavioral anomaly detection techniques based on regular expression matching and self-organizing maps.Type: GrantFiled: August 24, 2011Date of Patent: March 13, 2012Assignee: Crossbeam Systems, Inc.Inventors: Harsh Kapoor, Moisey Akerman, Stephen D. Justus, John C. Ferguson, Yevgeny Korsunsky, Paul S. Gallo, Charles Ching Lee, Timothy M. Martin, Chunsheng Fu, Weidong Xu
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Publication number: 20120017262Abstract: A flow processing facility, which uses a set of artificial neurons for pattern recognition, such as a self-organizing map, in order to provide security and protection to a computer or computer system supports unified threat management based at least in part on patterns relevant to a variety of types of threats that relate to computer systems, including computer networks. Flow processing for switching, security, and other network applications, including a facility that processes a data flow to address patterns relevant to a variety of conditions are directed at internal network security, virtualization, and web connection security. A flow processing facility for inspecting payloads of network traffic packets detects security threats and intrusions across accessible layers of the IP-stack by applying content matching and behavioral anomaly detection techniques based on regular expression matching and self-organizing maps.Type: ApplicationFiled: August 24, 2011Publication date: January 19, 2012Inventors: Harsh Kapoor, Moisey Akerman, Stephen D. Justus, John C. Ferguson, Yevgeny Korsunsky, Paul S. Gallo, Charles Ching Lee, Timothy M. Martin, Chunsheng Fu, Weidong Xu
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Patent number: 8071560Abstract: This invention pertains to inhibitors of atrial natriuretic peptide receptor A (NPRA) function, such as small interfering RNA (siRNA), useful for reducing the inflammation associated with many human diseases, such as asthma, respiratory syncytial virus (RSV) infection, and cancers (such as melanoma, lung cancer, and/or ovarian cancer) by interfering with NPRA gene expression or otherwise reducing NPRA function within a subject; and methods for treating a subject suffering from, or at risk of developing, an inflammatory disease, respiratory allergy (such as allergic rhinitis and asthma), viral infection, and/or cancer by administering such NPRA inhibitors to the subject.Type: GrantFiled: April 30, 2007Date of Patent: December 6, 2011Assignee: University of South FloridaInventors: Shyam S. Mohapatra, Weidong Xu, Xiaoyuan Kong, Xiaoqin Wang
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Patent number: 8010469Abstract: Methods and systems for flow processing and switching, security, and other network applications, including a facility that processes a data flow to address patterns relevant to a variety of conditions are directed at internal network security, virtualization, and web connection security are described. Such flow processing facilities may be used for inspecting network traffic packet payloads to detect security threats and intrusions across accessible layers of the network IP stack by applying content matching and behavioral anomaly detection techniques based on regular expression matching and self-organizing maps. Exposing threats and intrusions within packet payload at or near real-time rates enhances network security from both external and internal sources while ensuring security policy is rigorously applied to data and system resources.Type: GrantFiled: October 29, 2007Date of Patent: August 30, 2011Assignee: Crossbeam Systems, Inc.Inventors: Harsh Kapoor, Moisey Akerman, Stephen D. Justus, JC Ferguson, Yevgeny Korsunsky, Paul S. Gallo, Charles Ching Lee, Timothy M. Martin, Chunsheng Fu, Weidong Xu
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Patent number: 7979368Abstract: A flow processing facility, which uses a set of artificial neurons for pattern recognition, such as a self-organizing map, in order to provide security and protection to a computer or computer system supports unified threat management based at least in part on patterns relevant to a variety of types of threats that relate to computer systems, including computer networks. Flow processing for switching, security, and other network applications, including a facility that processes a data flow to address patterns relevant to a variety of conditions are directed at internal network security, virtualization, and web connection security. A flow processing facility for inspecting payloads of network traffic packets detects security threats and intrusions across accessible layers of the IP-stack by applying content matching and behavioral anomaly detection techniques based on regular expression matching and self-organizing maps.Type: GrantFiled: October 29, 2007Date of Patent: July 12, 2011Assignee: Crossbeam Systems, Inc.Inventors: Harsh Kapoor, Moisey Akerman, Stephen D. Justus, John C. Ferguson, Yevgeny Korsunsky, Paul S. Gallo, Charles Ching Lee, Timothy M. Martin, Chunsheng Fu, Weidong Xu
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Publication number: 20110033480Abstract: The present invention concerns the methods and compositions involving nucleic acids with long repeat sequences. In some embodiments of the invention, there are methods for generating such a nucleic acid, and in other methods, there are methods for using such a nucleic acid to screen for candidate therapeutic compounds. Furthermore the present invention relates to methods of screening for Notch inhibitors and other substances that may be used to treat muscle loss and wasting.Type: ApplicationFiled: April 11, 2007Publication date: February 10, 2011Inventors: Partha Sarkar, Tetsuo Ashizawa, Weidong XU
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Publication number: 20100260725Abstract: The subject invention provides for the utilization of bone-marrow derived stem cells in the treatment of allergic and inflammatory diseases. In one embodiment, the invention provides for treatment of asthma. Bone-marrow derived stem cells can be used for decreasing inflammation and alter the course of immune response in the lung.Type: ApplicationFiled: September 24, 2008Publication date: October 14, 2010Inventors: Shyam S. Mohapatra, Xiaoyuan Kong, Weidong Xu