Patents by Inventor Laxminarayan Bhat

Laxminarayan Bhat 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: 7727976
    Abstract: Disclosed are compounds that exhibit high transport across the intestinal wall of an animal. The compounds may optionally be linked to drugs that are poorly absorbed or poorly transported across the intestinal wall after oral administration to provide for enhanced therapeutic, and optionally prolonged therapeutic, systemic blood concentrations of the drugs upon oral administration of the drug-compound conjugate. Also disclosed are pharmaceutical compositions containing and methods of using such compounds.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: June 1, 2010
    Assignee: XenoPort, Inc.
    Inventors: Laxminarayan Bhat, Mark A. Gallop, Bernd Jandeleit
  • Publication number: 20100041882
    Abstract: Disclosed herein are methods for synthesizing 1-(acyloxy)-alkyl prodrug derivatives of drugs through oxidation of 1-acyl-alkyl derivatives of drugs under anhydrous reaction conditions. The methods typically proceed stereospecifically, in high yield, do not require the use of activated intermediates and/or toxic compounds and are readily amenable to scale-up.
    Type: Application
    Filed: August 10, 2009
    Publication date: February 18, 2010
    Applicant: XenoPort, Inc.
    Inventors: Laxminarayan Bhat, Mark A. Gallop
  • Patent number: 7662987
    Abstract: Disclosed herein are methods for synthesizing 1-(acyloxy)-alkyl prodrug derivatives of drugs through oxidation of 1-acyl-alkyl derivatives of drugs under anhydrous reaction conditions. The methods typically proceed stereospecifically, in high yield, do not require the use of activated intermediates and/or toxic compounds and are readily amenable to scale-up.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: February 16, 2010
    Assignee: XenoPort, Inc.
    Inventors: Laxminarayan Bhat, Mark A. Gallop
  • Publication number: 20090298819
    Abstract: The present invention provides novel piperazine derivatives which can be advantageously used for treating schizophrenia and related psychoses such as acute manic, bipolar disorder, autistic disorder and depression.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 3, 2009
    Applicant: REVIVA PHARMACEUTICALS, INC.
    Inventors: Laxminarayan Bhat, Prabhu Prasad Mohapatra, Kouacou Adiey
  • Publication number: 20090270493
    Abstract: The present invention provides cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs, methods of making cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs and compositions of cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs. The present invention also provides methods of using cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs and compositions of cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs.
    Type: Application
    Filed: June 30, 2009
    Publication date: October 29, 2009
    Applicant: XenoPort, Inc.
    Inventors: Mark A. Gallop, Jia-Ning Xiang, Fenmei Yao, Laxminarayan Bhat
  • Publication number: 20090239950
    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: Application
    Filed: June 8, 2009
    Publication date: September 24, 2009
    Applicant: XenoPort, Inc.
    Inventors: Mark A. Gallop, Jia-Ning Xiang, Fenmei Yao, Laxminarayan Bhat, Cindy X. Zhou
  • Patent number: 7569576
    Abstract: The present invention provides cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs, methods of making cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs and compositions of cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs. The present invention also provides methods of using cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs and compositions of cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: August 4, 2009
    Assignee: XenoPort, Inc.
    Inventors: Mark A Gallop, Jia-Ning Xiang, Fenmei Yao, Laxminarayan Bhat
  • Patent number: 7560483
    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 21, 2005
    Date of Patent: July 14, 2009
    Assignee: XenoPort, Inc.
    Inventors: Mark A. Gallop, Jia-Ning Xiang, Fenmei Yao, Laxminarayan Bhat, Cindy X. Zhou
  • Publication number: 20090129352
    Abstract: A wireless local area network system allows policy enforcement execution to be split between an access port and a centralized wireless controller. The policy may be of various types, including, but not limited to, a firewall policy, a QoS policy, a traffic shaping policy, and a bandwidth-management policy. On the AP, for all the traffic that is to be bridged or forwarded to specified ports, the policy table on the AP is checked. If it matches the policy table entry, then the specified action is taken. For all the traffic that gets forwarded to the controller by the AP, the match is checked with the policy table at the controller. If a match is detected, then the appropriate action specified by the policy is taken.
    Type: Application
    Filed: November 7, 2008
    Publication date: May 21, 2009
    Applicant: SYMBOL TECHNOLOGIES, INC.
    Inventors: Anurag Verma, Laxminarayan Bhat
  • Publication number: 20090092553
    Abstract: MCT1 and MCT4 are expressed at higher levels in many cancer cells than comparable normal cells of the same tissue. Disclosed herein are assays for determining whether a test material/molecule is a substrate for, and/or is actively transported by, the MCT1 and/or MCT4, as well as inhibitors and substrates of MCT1 and/or MCT4, methods of isolating the same, and methods of using the same for treatment or diagnosis of cancer.
    Type: Application
    Filed: May 16, 2008
    Publication date: April 9, 2009
    Applicant: Xenoport,Inc.
    Inventors: Noa Zerangue, Laxminarayan Bhat
  • Publication number: 20080293736
    Abstract: The present invention provides novel quinolinone derivatives which can be advantageously used for treating schizophrenia and related psychoses such as acute manic, bipolar disorder, autistic disorder, and depression.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 27, 2008
    Applicant: REVIVA PHARMACEUTICALS, INC.
    Inventors: Laxminarayan Bhat, Prabhu P. Mohapatra, Seema Rani Bhat
  • Publication number: 20080139663
    Abstract: The present invention provides novel cycloalkylmethylamine analogs, and methods of preparing cycloalkylmethylamine analogs. The present invention also provides methods of using cycloalkylmethylamine analogs and compositions of cycloalkylmethylamine analogs. The pharmaceutical compositions of the compounds of the present invention can be advantageously used for treating and/or preventing obesity and obesity related co-morbid indications.
    Type: Application
    Filed: September 17, 2007
    Publication date: June 12, 2008
    Inventors: Laxminarayan Bhat, Seema Rani Bhat
  • Patent number: 7101912
    Abstract: Prodrugs of carbidopa, derivatives of carbidopa prodrugs, methods of making prodrugs of carbidopa and derivatives thereof, methods of using prodrugs of carbidopa and derivatives thereof, and compositions of prodrugs of carbidopa and derivatives thereof are disclosed.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: September 5, 2006
    Assignee: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Mark A. Gallop, Kenneth C. Cundy, Jianhua Li, Feng Xu, Cindy X. Zhou, Laxminarayan Bhat
  • Publication number: 20060122125
    Abstract: The present invention provides cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs, methods of making cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs and compositions of cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs. The present invention also provides methods of using cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs and compositions of cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs.
    Type: Application
    Filed: January 12, 2006
    Publication date: June 8, 2006
    Inventors: Mark Gallop, Jia-Ning Xiang, Fenmei Yao, Laxminarayan Bhat
  • Patent number: 7053076
    Abstract: Disclosed are compounds that exhibit high transport across the intestinal wall of an animal. The compounds may optionally be linked to drugs that are poorly absorbed or poorly transported across the intestinal wall after oral administration to provide for enhanced therapeutic, and optionally prolonged therapeutic, systemic blood concentrations of the drugs upon oral administration of the drug-compound conjugate. Also disclosed are pharmaceutical compositions containing and methods of using such compounds.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: May 30, 2006
    Assignee: XenoPort, Inc.
    Inventors: Laxminarayan Bhat, Mark A. Gallop, Bernd Jandeleit
  • Patent number: 7026351
    Abstract: The present invention provides cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs, methods of making cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs and compositions of cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs. The present invention also provides methods of using cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs and compositions of cyclic 1-(acyloxy)-alkyl prodrugs of GABA analogs.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: April 11, 2006
    Assignee: Xenoport, Inc.
    Inventors: Mark A Gallop, Jia-Ning Xiang, Fenmei Yao, Laxminarayan Bhat
  • Publication number: 20060030551
    Abstract: Disclosed are compounds that exhibit high transport across the intestinal wall of an animal. The compounds may optionally be linked to drugs that are poorly absorbed or poorly transported across the intestinal wall after oral administration to provide for enhanced therapeutic, and optionally prolonged therapeutic, systemic blood concentrations of the drugs upon oral administration of the drug-compound conjugate. Also disclosed are pharmaceutical compositions containing and methods of using such compounds.
    Type: Application
    Filed: September 26, 2005
    Publication date: February 9, 2006
    Inventors: Laxminarayan Bhat, Mark Gallop, Bernd Jandeleit
  • Publication number: 20050239725
    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: Application
    Filed: June 21, 2005
    Publication date: October 27, 2005
    Inventors: Mark Gallop, Jia-Ning Xiang, Fenmei Yao, Laxminarayan Bhat, Cindy Zhou
  • Patent number: 6927036
    Abstract: Disclosed is a method for synthesizing 1-(acyloxy)-alkyl derivatives of primary or secondary amine drugs from 1-acyl-alkyl derivatives of primary or secondary amine drugs, which typically proceeds stereospecifically, in high yield, does not require the use of activated intermediates and/or toxic compounds and is readily amenable to scale-up. For example, 1-acyl-alkyl derivatives of gabapentin and pregabalin are oxidized to yield 1-(acyloxy)-alkyl derivatives of gabapentin and pregabalin, respectively.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: August 9, 2005
    Assignee: Xero Port, Inc.
    Inventors: Mark A. Gallop, Jia-Ning Xiang, Fenmei Yao, Laxminarayan Bhat, Cindy X. Zhou
  • Publication number: 20050070715
    Abstract: Disclosed herein are methods for synthesizing 1-(acyloxy)-alkyl prodrug derivatives of drugs through oxidation of 1-acyl-alkyl derivatives of drugs under anhydrous reaction conditions. The methods typically proceed stereospecifically, in high yield, do not require the use of activated intermediates and/or toxic compounds and are readily amenable to scale-up.
    Type: Application
    Filed: July 15, 2004
    Publication date: March 31, 2005
    Inventors: Laxminarayan Bhat, Mark Gallop