Patents by Inventor Cindy X. Zhou

Cindy X. Zhou 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).

  • Methods of synthesizing a levodopa ester prodrug
    Patent number: 9533941
    Abstract: Methods of synthesizing a levodopa ester prodrug, salts thereof, and synthetic intermediates thereof are disclosed.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: January 3, 2017
    Assignee: XENOPORT, INC.
    Inventors: Stephen P. Raillard, Adam Mann, Suresh K. Manthati, Randall A. Scheuerman, Tono Estrada, Mark Q. Nguyen, Cindy X. Zhou
  • METHODS OF SYNTHESIZING A LEVODOPA ESTER PRODRUG
    Publication number: 20160176804
    Abstract: Methods of synthesizing a levodopa ester prodrug, salts thereof, and synthetic intermediates thereof are disclosed.
    Type: Application
    Filed: February 12, 2016
    Publication date: June 23, 2016
    Inventors: STEPHEN P. RAILLARD, ADAM MANN, SURESH K. MANTHATI, RANDALL A. SCHEUERMAN, TONO ESTRADA, MARK Q. NGUYEN, CINDY X. ZHOU
  • Methods of synthesizing a levodopa ester prodrug
    Patent number: 9290445
    Abstract: Methods of synthesizing a levodopa ester prodrug, salts thereof, and synthetic intermediates thereof are disclosed.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: March 22, 2016
    Assignee: XenoPort, Inc.
    Inventors: Stephen P. Raillard, Adam Mann, Suresh K. Manthati, Randall A. Scheuerman, Tono Estrada, Mark Q. Nguyen, Cindy X Zhou
  • Methods of using prodrugs of pregabalin
    Patent number: 8367722
    Abstract: The present invention provides prodrugs of GABA analogs, pharmaceutical compositions of prodrugs of GABA analogs and methods for making prodrugs of GABA analogs. The present invention also provides methods for using prodrugs of GABA analogs and methods for using pharmaceutical compositions of prodrugs of GABA analogs for treating or preventing common diseases and/or disorders.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: February 5, 2013
    Assignee: Xenoport, Inc.
    Inventors: Mark A. Gallop, Kenneth C. Cundy, Cindy X. Zhou, Fenmei Yao, Jia-Ning Xiang
  • Levodopa dimethyl-substituted diester prodrugs, compositions, and methods of use
    Patent number: 8324272
    Abstract: Levodopa dimethyl-substituted diester prodrugs pharmaceutical, compositions comprising levodopa dimethyl-substituted diester prodrugs, and methods of using such prodrugs and pharmaceutical compositions for treating diseases such as Parkinson's disease are provided.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: December 4, 2012
    Assignee: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Cindy X. Zhou, Fenmei Yao, Mark Q. Nguyen
  • Catechol protected levodopa diester prodrugs, compositions, and methods of use
    Patent number: 8324273
    Abstract: Catechol protected levodopa diester prodrugs pharmaceutical, compositions comprising catechol protected levodopa diester prodrugs, and methods of using such prodrugs and pharmaceutical compositions for treating diseases such as Parkinson's disease are provided.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: December 4, 2012
    Assignee: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Cindy X. Zhou, Fenmei Yao, Mark Q. Nguyen
  • Levodopa Prodrugs, and Compositions and Uses Thereof
    Publication number: 20120296109
    Abstract: (2R)-2-Phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate and crystalline form thereof, methods of making the same, pharmaceutical compositions thereof, and methods of using the same to treat diseases or disorders such as Parkinson's disease are provided.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 22, 2012
    Applicant: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Xuedong Dai, Cindy X. Zhou, Jianhua Li, Mark Q. Nguyen
  • Levodopa Prodrugs, and Compositions and Uses Thereof
    Publication number: 20120190861
    Abstract: Prodrugs of levodopa, methods of making prodrugs of levodopa, methods of using prodrugs of levodopa, and compositions of prodrugs of levodopa are disclosed.
    Type: Application
    Filed: April 5, 2012
    Publication date: July 26, 2012
    Applicant: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Mark A. Gallop, Cindy X. Zhou, Mark Nguyen, Xuedong Dai, Jianhua Li, Kenneth C. Cundy, Nelson L. Jumbe
  • Levodopa prodrug mesylate, compositions thereof, and uses thereof
    Patent number: 8193242
    Abstract: (2R)-2-Phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate and crystalline form thereof, methods of making the same, pharmaceutical compositions thereof, and methods of using the same to treat diseases or disorders such as Parkinson's disease are provided.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: June 5, 2012
    Assignee: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Xuedong Dai, Cindy X. Zhou, Jianhua Li, Mark Q. Nguyen
  • Prodrugs of GABA analogs, compositions and uses thereof
    Patent number: 8168623
    Abstract: The present invention provides prodrugs of GABA analogs, pharmaceutical compositions of prodrugs of GABA analogs and methods for making prodrugs of GABA analogs. The present invention also provides methods for using prodrugs of GABA analogs and methods for using pharmaceutical compositions of prodrugs of GABA analogs for treating or preventing common diseases and/or disorders.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: May 1, 2012
    Assignee: XenoPort, Inc.
    Inventors: Mark A. Gallop, Kenneth C. Cundy, Cindy X. Zhou, Fenmei Yao, Jia-Ning Xiang, Ian R. Ollman, Fayang G. Qiu
  • Levodopa prodrugs, and compositions and uses thereof
    Patent number: 8163958
    Abstract: Prodrugs of levodopa, methods of making prodrugs of levodopa, methods of using prodrugs of levodopa, and compositions of prodrugs of levodopa are disclosed.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: April 24, 2012
    Assignee: Xenoport, Inc.
    Inventors: Jia-Ning Xiang, Mark A. Gallop, Cindy X. Zhou, Mark Nguyen, Xuedong Dai, Jianhua Li, Kenneth C. Cundy, Nelson L. Jumbe
  • Methods for synthesis of prodrugs from 1-acyl-alkyl derivatives and compositions thereof
    Patent number: 8143437
    Abstract: The present invention provides a method for synthesizing 1-(acyloxy)-alkyl derivatives from 1-acyl-alkyl derivatives, which typically proceeds stereospecifically, in high yield, does not require the use of activated intermediates and/or toxic compounds and is readily amendable to scale-up. The current invention also provides 1-acyl-alkyl derivatives of known drug components and methods for synthesizing these 1-acyl-alkyl derivatives.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: March 27, 2012
    Assignee: XenoPort, Inc.
    Inventors: Mark A. Gallop, Jia-Ning Xiang, Fenmei Yao, Laxminarayan Bhat, Cindy X. Zhou
  • METHODS OF USING PRODRUGS OF PREGABALIN
    Publication number: 20120035258
    Abstract: The present invention provides prodrugs of GABA analogs, pharmaceutical compositions of prodrugs of GABA analogs and methods for making prodrugs of GABA analogs. The present invention also provides methods for using prodrugs of GABA analogs and methods for using pharmaceutical compositions of prodrugs of GABA analogs for treating or preventing common diseases and/or disorders.
    Type: Application
    Filed: October 14, 2011
    Publication date: February 9, 2012
    Applicant: XenoPort, Inc.
    Inventors: Mark A. Gallop, Kenneth C. Cundy, Cindy X. Zhou, Fenmei Yao, Jia-Ning Xiang, Ian R. Ollman, Fayang G. Qiu
  • Prodrugs of GABA analogs, compositions and uses thereof
    Patent number: 8048917
    Abstract: The present invention provides prodrugs of GABA analogs, pharmaceutical compositions of prodrugs of GABA analogs and methods for making prodrugs of GABA analogs. The present invention also provides methods for using prodrugs of GABA analogs and methods for using pharmaceutical compositions of prodrugs of GABA analogs for treating or preventing common diseases and/or disorders.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: November 1, 2011
    Assignee: XenoPort, Inc.
    Inventors: Mark A. Gallop, Kenneth C. Cundy, Cindy X. Zhou, Fenmei Yao, Jia-Ning Xiang
  • LEVODOPA PRODRUGS, AND COMPOSITIONS AND USES THEREOF
    Publication number: 20110201817
    Abstract: Prodrugs of levodopa, methods of making prodrugs of levodopa, methods of using prodrugs of levodopa, and compositions of prodrugs of levodopa are disclosed.
    Type: Application
    Filed: April 27, 2011
    Publication date: August 18, 2011
    Applicant: XenoPort, Inc.
    Inventors: Jia-Ning XIANG, Mark A. Gallop, Cindy X. Zhou, Mark Nguyen, Xuedong Dai, Jianhua Li, Kenneth C. Cundy, Nelson L. Jumbe
  • Levodopa prodrug mesylate, compositions thereof, and uses thereof
    Patent number: 7968597
    Abstract: (2R)-2-Phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate and crystalline form thereof, methods of making the same, pharmaceutical compositions thereof, and methods of using the same to treat diseases or disorders such as Parkinson's disease are provided.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: June 28, 2011
    Assignee: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Xuedong Dai, Cindy X. Zhou, Jianhua Li, Mark Q. Nguyen
  • Levodopa prodrugs, and compositions and uses thereof
    Patent number: 7956212
    Abstract: Prodrugs of levodopa, methods of making prodrugs of levodopa, methods of using prodrugs of levodopa, and compositions of prodrugs of levodopa are disclosed.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: June 7, 2011
    Assignee: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Mark A. Gallop, Cindy X. Zhou, Mark Nguyen, Xuedong Dai, Jianhua Li, Kenneth C. Cundy, Nelson L. Jumbe
  • LEVODOPA PRODRUG MESYLATE, COMPOSITIONS THEREOF, AND USES THEREOF
    Publication number: 20110111062
    Abstract: (2R)-2-Phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate and crystalline form thereof, methods of making the same, pharmaceutical compositions thereof, and methods of using the same to treat diseases or disorders such as Parkinson's disease are provided.
    Type: Application
    Filed: January 20, 2011
    Publication date: May 12, 2011
    Inventors: Jia-Ning XIANG, Xuedong DAI, Cindy X. ZHOU, Jianhua LI, Mark Q. NGUYEN
  • Levodopa prodrug mesylate, compositions thereof, and uses thereof
    Patent number: 7893105
    Abstract: (2R)-2-Phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate and crystalline form thereof, methods of making the same, pharmaceutical compositions thereof, and methods of using the same to treat diseases or disorders such as Parkinson's disease are provided.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: February 22, 2011
    Assignee: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Xuedong Dai, Cindy X. Zhou, Jianhua Li, Mark Q. Nguyen
  • CATECHOL PROTECTED LEVODOPA DIESTER PRODRUGS, COMPOSITIONS, AND METHODS OF USE
    Publication number: 20110028544
    Abstract: Catechol protected levodopa diester prodrugs pharmaceutical, compositions comprising catechol protected levodopa diester prodrugs, and methods of using such prodrugs and pharmaceutical compositions for treating diseases such as Parkinson's disease are provided.
    Type: Application
    Filed: October 14, 2010
    Publication date: February 3, 2011
    Applicant: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Cindy X. Zhou, Fenmei Yao, Mark Q. Nguyen