Patents by Inventor Chang Xu

Chang 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).

  • Publication number: 20110034511
    Abstract: The present invention relates to compounds of formula I: or a pharmaceutically acceptable acid addition salt thereof, wherein X is C(R3c)? or N?; R1 is C2-C6 alkyl, substituted C2-C6 alkyl, C3-C7 cycloalkyl, substituted C3-C7 cycloalkyl, phenyl, substituted phenyl, heterocycle, or substituted heterocycle; R2 is hydrogen, C1-C3 n-alkyl, C3-C6 cycloalkyl-C1-C3 alkyl, or a group of formula II provided that when R1 is C2-C6 alkyl or substituted C2-C6 alkyl, R2 is hydrogen or methyl; R3a, R3b and, when X is —C(R3c)?, R3c, are each independently hydrogen, fluoro, or methyl, provided that no more than one of R3a, R3b, and R3c may be other than hydrogen; R4 is hydrogen or C1-C3 alkyl; R5 is hydrogen, C1-C3 alkyl, or C3-C6 cycloalkylcarbonyl, provided that when R3a is other than hydrogen, R5 is hydrogen; R6 is hydrogen or C1-C6 alkyl; and n is an integer from 1 to 6 inclusively.
    Type: Application
    Filed: September 28, 2010
    Publication date: February 10, 2011
    Applicant: Eli Lilly and Company
    Inventors: Maria-Jesus Blanco-Pillado, Michael Philip Cohen, Sandra Ann Filla, Kevin John Hudziak, Daniel Timothy Kohlman, Dana Rae Benesh, Frantz Victor, Yao-Chang Xu, Bai-Ping Ying, DeAnna Piatt Zacherl, Deyi Zhang, Brian Michael Mathes
  • Patent number: 7608629
    Abstract: The present invention relates to compounds of formula 1: and pharmaceutically acceptable acid addition sails thereof. The compounds of the present invention are useful for activating 5-HT1F receptors, inhibiting neuronal protein extravasation, and for the treatment or preverition of migraine in mammals, particularly humans.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: October 27, 2009
    Assignee: Eli Lilly and Company
    Inventors: Maria-Jesus Blanco-Pillado, Dana Rae Benesh, Sandra Ann Filla, Kevin John Hudziak, Brian Michael Mathes, Daniel Timothy Kohlman, Bai-Ping Ying, Deyi Zhang, Yao-Chang Xu
  • Publication number: 20090209563
    Abstract: The present invention relates to compounds of formula I: or pharmaceutically acceptable acid addition salts thereof, where; R1 is C1-C6 alkyl, substituted C1-C6 alkyl, C3-C7 cycloalkyl, substituted C3-C7 cycloalkyl, C3-C7 cycloalkyl-C1-C3 alkyl, substituted C3-C7 cycloalkyl-C1-C3 alkyl, phenyl, substituted phenyl, heterocycle, or substituted heterocycle; R2 is hydrogen, C1-C3 alkyl, C3-C6 cycloalkyl-C1-C3 alkyl, or a group of formula II R3 is hydrogen or C1-C3 alkyl; R4 is hydrogen, halo, or C1-C3 alkyl; R5 is hydrogen or C1-C3 alkyl; R6 is hydrogen or C1-C6 alkyl; and n is an integer from 1 to 6 inclusively. The compounds of the present invention are useful for activating 5-HT1F receptors, inhibiting neuronal protein extravasation, and for the treatment or prevention of migraine in a mammal. The present invention also relates to a process for the synthesis of intermediates in the synthesis of compounds of Formula I.
    Type: Application
    Filed: August 7, 2008
    Publication date: August 20, 2009
    Inventors: Michael Philip Cohen, Daniel Timothy Kohlman, Sidney Xi Liang, Vincent Mancuso, Yao-Chang Xu
  • Publication number: 20080300407
    Abstract: The invention relates to compounds of formula I: or pharmaceutically acceptable acid addition salts thereof, where; R1 is C1-C6 alkyl, substituted C1-C6 alkyl, C3-C7 cycloalkyl, substituted C3-C7 cycloalkyl, C3-C7 cycloalkyl-C1-C3 alkyl, substituted C3-C7 cycloalkyl-C1-C3 alkyl, phenyl, substituted phenyl, heterocycle, or substituted heterocycle; R2 is hydrogen, C1-C3 alkyl, C3-C6 cycloalkyl-C1-C3 alkyl, or a group of formula II; R3 is hydrogen or C1-C3 alkyl; R4 is hydrogen, halo, or C1-C3 alkyl; R5 is hydrogen or C1-C3 alkyl; R6 is hydrogen or C1-C6 alkyl; and n is an integer from 1 to 6 inclusively. The compounds of the present invention are useful for activating 5-HT1F receptors, inhibiting neuronal protein extravasation, and for the treatment or prevention of migraine in a mammal. The present invention also relates to a process for the synthesis of intermediates in the synthesis of compounds of Formula I.
    Type: Application
    Filed: July 22, 2008
    Publication date: December 4, 2008
    Applicant: Eli Lilly and Company
    Inventors: Michael Philip Cohen, Daniel Timothy Kohlman, Sidney Xi Liang, Vincent Mancuso, Frantz Victor, Yao-Chang Xu, Bai-Ping Ying, DeAnna Piatt Zacherl, Deyi Zhang
  • Patent number: 7423050
    Abstract: The present invention relates to compounds of formula I: or pharmaceutically acceptable acid addition salts thereof, where; R1 is C1-C6 alkyl, substituted C1-C6 alkyl, C3-C7 cycloalkyl, substituted C3-C7 cycloalkyl, C3-C7 cycloalkyl-C1-C3 alkyl, substituted C3-C7 cycloalkyl-C1-C3 alkyl, phenyl, substituted phenyl, heterocycle, or substituted heterocycle; R2 is hydrogen, C1-C3 alkyl, C3-C6 cycloalkyl-C1-C3 alkyl, or a group of formula II R3 is hydrogen or C1-C3 alkyl; R4 is hydrogen, halo, or C1-C3 alkyl; R5 is hydrogen or C1-C3 alkyl; R6 is hydrogen or C1-C6 alkyl; and n is an integer from 1 to 6 inclusively. The compounds of the present invention are useful for activating 5-HT1F receptors, inhibiting neuronal protein extravasation, and for the treatment or prevention of migraine in a mammal. The present invention also relates to a process for the synthesis of intermediates in the synthesis of compounds of Formula I.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: September 9, 2008
    Assignee: Eli Lilly and Company
    Inventors: Michael Philip Cohen, Daniel Timothy Kohlman, Sidney Xi Liang, Vincent Mancuso, Yao-Chang Xu, Bai-Ping Ying, DeAnna Piatt Zacherl, Deyi Zhang, Frantz Victor
  • Patent number: 7312236
    Abstract: The present invention relates to compounds of formula I: or a pharmaceutically acceptable acid addition salt thereof, where; X is —C(R4)? or —N?; Ar is phenyl, substituted phenyl, heterocycle, or substituted heterocycle; R1 and R2 are independently hydrogen or C1-C3 alkyl; R3 is hydrogen, fluoro, or methyl; when X is —C(R4)?,R4 is hydrogen, fluoro, or methyl, provided that no more than one of R3and R4 may be other than hydrogen; and R5 is hydrogen, methyl, or ethyl. The compounds of the present invention are useful for activating 5-HT1F receptors, inhibiting dural protein extravasation, and for the treatment or prevention of migraine in a mammal.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: December 25, 2007
    Assignee: Eli Lilly and Company
    Inventors: Daniel Timothy Kohlman, Frantz Victor, Yao-Chang Xu, Bai-Ping Ying, Deyi Zhang
  • Patent number: 7309702
    Abstract: A series of aryl piperazine compounds are effective pharmaceuticals for the treatment of conditions related to or affected by the serotonin 1A receptor; the compounds are particularly effective antagonists at that receptor, and are particularly useful for alleviating the symptoms of nicotine and tobacco withdrawal.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: December 18, 2007
    Assignees: Avera Pharmaceuticals, Inc., Eli Lilly and Company
    Inventors: Alexander Glenn Godfrey, Daniel Timothy Kohlman, John Cunningham O'Toole, Yao-Chang Xu, Tony Yantao Zhang, Jeffrey Forrester McKelvy
  • Publication number: 20070270466
    Abstract: The present invention relates to compounds of formula I: or a pharmaceutically acceptable acid addition salt thereof, wherein X is C(R3c)? or N?; R1 is C2-C6 alkyl, substituted C2-C6 alkyl, C3-C7 cycloalkyl, substituted C3-C7 cycloalkyl, phenyl, substituted phenyl, heterocycle, or substituted heterocycle; R2 is hydrogen, C1-C3 n-alkyl, C3-C6 cycloalkyl-C1-C3 alkyl, or a group of formula II provided that when R1 is C2-C6 alkyl or substituted C2-C6 alkyl, R2 is hydrogen or methyl; R3a, R3b and, when X is —C(R3c)?, R3c, are each independently hydrogen, fluoro, or methyl, provided that no more than one of R3a, R3b, and R3c may be other than hydrogen; R4 is hydrogen or C1-C3 alkyl; R5 is hydrogen, C1-C3 alkyl, or C3-C6 cycloalkylcarbonyl, provided that when R3a is other than hydrogen, R5 is hydrogen; R6 is hydrogen or C1-C6 alkyl; and n is an integer from 1 to 6 inclusively.
    Type: Application
    Filed: June 4, 2007
    Publication date: November 22, 2007
    Inventors: Maria-Jesus Blanco-Pillado, Michael Cohen, Sandra Filla, Kevin Hudziak, Daniel Kohlman, Dana Benesh, Frantz Victor, Yao-Chang Xu, Bai-Ping Ying, DeAnna Zacherl, Deyi Zhang, Brian Mathes
  • Patent number: 7291632
    Abstract: The present invention relates to compounds of formula I: (I) or a pharmaceutically acceptable acid addition salt thereof, where; X is C(R3c? or N?; R1 is C2–C6 alkyl, substituted C2–C6 alkyl, C3–C7 cycloalkyl, substituted C3–C7 cycloalkyl, phenyl, substituted phenyl, heterocycle, or substituted heterocycle; R2 is hydrogen, C1–C3 n-alkyl, C3–C6 cycloalkyl-C1–C3 alkyl, or a group of formula II (II) provided that when R1 is C2–C6 alkyl or substituted C2–C6 alkyl, R2 is hydrogen or methyl; R3a, R3b, and, when X is C(R3c)?, R3c, are each independently hydrogen, fluoro, or methyl, provided that no more than one of R3a, R3b, and R3c may be other than hydrogen; R4 is hydrogen or C1–C3 alkyl; R5 is hydrogen, C1–C3 alkyl, or C3–C6 cycloalkylcarbonyl, provided that when R3a is other than hydrogen, R5 is hydrogen; R6 is hydrogen or C1–C6 alkyl; and n is an integer from 1 to 6 inclusively.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: November 6, 2007
    Assignee: Eli Lilly and Company
    Inventors: Maria-Jesus Blanco-Pillado, Michael Philip Cohen, Sandra Ann Filla, Kevin John Hudziak, Daniel Timothy Kohlman, Dana Rae Benesh, Frantz Victor, Yao-Chang Xu, Bai-Ping Ying, DeAnna Piatt Zacherl, Deyi Zhang, Brian Michael Mathes
  • Patent number: 7286990
    Abstract: An interface for accessing data from one or more information systems using a wireless telephone or other user device. The interface is presented to a user as an abstraction of a unified mailbox and permits access by the user to messaging and other services from the wireless device. The interface is coupled to one or more converting modules to convert user inputs from the format in which they are received into a format that may be input to the desired information system.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: October 23, 2007
    Assignee: Openwave Systems Inc.
    Inventors: Paul Edmonds, Yi Zhang, George Sollman, Michael P. Tel, Chang Xu, Priyen Doshi, Stephen Co, David Weinstein, Andy Chan
  • Publication number: 20070078169
    Abstract: The present invention relates to compounds of formula I: or a pharmaceutically acceptable acid addition salt thereof, where; X is —C(R4)? or —N?; Ar is phenyl, substituted phenyl, heterocycle, or substituted heterocycle; R1 and R2 are independently hydrogen or C1-C3 alkyl; R3 is hydrogen, fluoro, or methyl; when X is —C(R4)?, R4 is hydrogen, fluoro, or methyl, provided that no more than one of R3 and R4 may be other than hydrogen; and R5 is hydrogen, methyl, or ethyl. The compounds of the present invention are useful for activating 5-HT1F receptors, inhibiting dural protein extravasation, and for the treatment or prevention of migraine in a mammal.
    Type: Application
    Filed: December 6, 2004
    Publication date: April 5, 2007
    Inventors: Daniel Kohlman, Frantz Victor, Yao-Chang Xu, Bai-Ping Ying, Deyi Zhang
  • Patent number: 7167836
    Abstract: A method is provided of restricted substance management and recycling in a manufacturing environment. The method includes the steps of inputting restricted substances and recycle content data of parts supplied by a supplier for a vehicle into a computer system of a vehicle manufacturer. The method also includes the steps of reviewing the inputted data and determining parts with banned or recycled content or substances over predetermined thresholds. The method further includes the steps of reporting the determined parts to the supplier and vehicle manufacture.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: January 23, 2007
    Assignee: Ford Motor Company
    Inventors: Bernd Gottselig, Bing Chang Xu, Frank Kovacic, Holly Zhang, John Lincoln Nelson, Pratapa Srikiran, Richard J. Gilbert
  • Publication number: 20060287363
    Abstract: The present invention relates to compounds of formula I: (I) or a pharmaceutically acceptable acid addition salt thereof, where; X is C(R3c? or N?; R1 is C2-C6 alkyl, substituted C2-C6 alkyl, C3-C7 cycloalkyl, substituted C3-C7 cycloalkyl, phenyl, substituted phenyl, heterocycle, or substituted heterocycle; R2 is hydrogen, C1-C3 n-alkyl, C3-C6 cycloalkyl-C1-C3 alkyl, or a group of formula II (II) provided that when R1 is C2-C6 alkyl or substituted C2-C6 alkyl, R2 is hydrogen or methyl; R3a, R3b, and, when X is C(R3c)?, R3c, are each independently hydrogen, fluoro, or methyl, provided that no more than one of R3a, R3b, and R3c may be other than hydrogen; R4 is hydrogen or C1-C3 alkyl; R5 is hydrogen, C1-C3 alkyl, or C3-C6 cycloalkylcarbonyl, provided that when R3a is other than hydrogen, R5 is hydrogen; R6 is hydrogen or C1-C6 alkyl; and n is an integer from 1 to 6 inclusively.
    Type: Application
    Filed: September 3, 2004
    Publication date: December 21, 2006
    Applicant: ELLI LILLY AND COMPANY
    Inventors: Maria-Jesus Blanco-Pillado, Michael Cohen, Sandra Filla, Kevin Hudzlak, Daniel Kohlman, Dana Benesh, Frantz Victor, Yao-Chang Xu, Bai-Ping Ying, DeAnna Zacherl, Deyi Zhang, Brian Mathes
  • Publication number: 20060211734
    Abstract: The present invention relates to compounds of formula 1: and pharmaceutically acceptable acid addition sails thereof. The compounds of the present invention are useful for activating 5-HT1F receptors, inhibiting neuronal protein extravasation, and for the treatment or preverition of migraine in mammals, particularly humans.
    Type: Application
    Filed: April 14, 2004
    Publication date: September 21, 2006
    Applicant: ELILILLY AND COMPANY
    Inventors: Maria-Jesus Blanco-Pillado, Dana Benesh, Sandra Filla, Kevin Hudziak, Brian Mathes, Daniel Kohlman, Bai-Ping Ying, Deyl Zhang, Yao-Chang Xu
  • Publication number: 20060154691
    Abstract: There is provided apparatus for supporting coexistence between a first wireless communication mode and a second wireless communication mode. The apparatus comprises a hardware module and a software module for implementing at least one set of protocols for both communication modes. The software module includes SDR control for enabling switching between the two communication modes. There is also provided a method for switching from the first wireless communication mode to the second wireless communication mode, in a single device, using software defined radio (SDR) control.
    Type: Application
    Filed: January 4, 2006
    Publication date: July 13, 2006
    Inventors: Liang Tang, Chang Xu, Masayuki Tomisawa
  • Patent number: 7045545
    Abstract: The present invention provides serotonergic aminoalkylbenzofurans of Formula (I): where R, R1, R2, R3, R4, R4?, R5, R5?, and R12 are as described in the specification.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: May 16, 2006
    Assignee: Eli Lilly and Company
    Inventors: Karin Briner, Joseph Paul Burkhart, Timothy Paul Burkholder, Matthew Joseph Fisher, William Harlan Gritton, Daniel Timothy Kohlman, Sidney Xi Liang, Shawn Christopher Miller, Jeffrey Thomas Mullaney, Yao-Chang Xu, Yanping Xu
  • Patent number: 7001908
    Abstract: A series of aryl piperazine compounds are effective pharmaceuticals for the treatment of conditions related to or affected by the serotonin 1A receptor; the compounds are particularly effective antagonists at that receptor, and are particularly useful for alleviating the symptoms of nicotine and tobacco withdrawal.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: February 21, 2006
    Assignees: Avera Pharmaceuticals, Inc., Eli Lilly and Company
    Inventors: Alexander Glenn Godfrey, Daniel Timothy Kohlman, John Cunningham O'Toole, Yao-Chang Xu, Tony Yantao Zhang
  • Publication number: 20060026628
    Abstract: A method and apparatus inserts virtual advertisements or other virtual contents into a sequence of frames of a video presentation by performing real-time content-based video frame processing to identify suitable locations in the video for implantation. Such locations correspond to both the temporal segments within the video presentation and the regions within an image frame that are commonly considered to be of lesser relevance to the viewers of the video presentation. This invention presents a method and apparatus that allows a non-intrusive means to incorporate additional virtual content into a video presentation, facilitating an additional channel of communications to enhance greater video interactivity.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 2, 2006
    Inventors: Kong Wah Wan, Chang Xu, Joo Lim, Xin Yu
  • Publication number: 20060009464
    Abstract: A series of aryl piperazine compounds are effective pharmaceuticals for the treatment of conditions related to or affected by the serotonin 1A receptor; the compounds are particularly effective antagonists at that receptor, and are particularly useful for alleviating the symptoms of nicotine and tobacco withdrawal.
    Type: Application
    Filed: September 13, 2005
    Publication date: January 12, 2006
    Inventors: Alexander Godfrey, Daniel Kohlman, John O'Toole, Yao-Chang Xu, Tony Zhang, Jeffrey McKelvy
  • Publication number: 20050282817
    Abstract: A series of aryl piperazine compounds are effective pharmaceuticals for the treatment of conditions related to or affected by the serotonin 1A receptor; the compounds are particularly effective antagonists at that receptor, and are particularly useful for alleviating the symptoms of nicotine and tobacco withdrawal.
    Type: Application
    Filed: July 19, 2005
    Publication date: December 22, 2005
    Inventors: Alexander Godfrey, Daniel Kohlman, John O'Toole, Yao-Chang Xu, Tony Zhang