Patents by Inventor Ashwin M. Krishnan

Ashwin M. Krishnan 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: 20120295947
    Abstract: The present invention relates to processes and intermediates useful in the preparation of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid of Formula (Ia) and salts thereof, an S1P1 receptor modulator that is useful in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions characterized by an underlying defect in vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development and atherosclerosis).
    Type: Application
    Filed: January 27, 2011
    Publication date: November 22, 2012
    Applicant: ARENA PHARMACEUTICALS, INC.
    Inventors: Antonio Garrido Montalban, Daniel J. Buzard, John A. DeMattei, Tawfik Gharbaoui, Stephen R. Johannsen, Ashwin M. Krishnan, Young Mi Khulman, You-An Ma, Michael John Martinelli, Suzanne Michiko Sato, Dipanjan Sengupta
  • Publication number: 20110021538
    Abstract: The present invention relates to processes for preparing pyrazole derivatives of Formula (I) and salts and pharmaceutical compositions of the salts thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to salts of compounds of Formula (I) and pharmaceutical compositions thereof.
    Type: Application
    Filed: April 1, 2009
    Publication date: January 27, 2011
    Applicant: ARENA PHARMACEUTICALS, INC.
    Inventors: Ashwin M. Krishnan, Tawfik Gharbaoui
  • Patent number: 7812159
    Abstract: The present invention relates to processes for preparing aromatic ether compounds that are modulators of glucose metabolism and therefore useful in the treatment of metabolic disorders such as diabetes and obesity.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: October 12, 2010
    Assignee: Arena Pharamaceuticals, Inc.
    Inventors: Tawfik Gharbaoui, John R. Fritch, Ashwin M. Krishnan, Beverly Wolgast Throop, Naomi S. Kato
  • Publication number: 20100234380
    Abstract: The present invention relates to processes for preparing phenyl-pyrazoles of Formula (I) and salts and pharmaceutical compositions thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to crystalline forms of 5-HT2A serotonin receptor modulators, compositions thereof and methods of using the same.
    Type: Application
    Filed: May 17, 2007
    Publication date: September 16, 2010
    Applicant: ARENA PHARMACEUTICALS, INC.
    Inventors: Tawfik Gharbaoui, Dipanjan Sengupta, Ashwin M. Krishnan, Nainesh Shah, Ryan M. Hart, Mark Macias
  • Patent number: 6030603
    Abstract: This invention relates to an oil-in-water emulsion that is of a water-insoluble gas-forming chemical and a stabilizer. The emulsion being capable of forming microbubbles of gas upon application of ultrasonic energy. This composition allows for site specific imaging as the image enhancing microbubbles can be released upon the application of ultrasonic energy at the specific location where the image is desired.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: February 29, 2000
    Assignee: Molecular Biosystems, Inc.
    Inventors: Rolf Lohrmann, Kenneth J. Widder, Ashwin M. Krishnan, Dung Kevin Hong, Jialun Meng
  • Patent number: 5846515
    Abstract: Calixarene conjugates useful for imaging, particularly magnetic resonance imaging (MRI) and computed tomography (CT) are described. Said calixarene conjugates comprise (i) a calixarene backbone, and (ii) at least one imaging moiety linked thereto, and may be of the formula: ##STR1## wherein at least one of the R.sup.1 and R.sup.4 substituents comprises an imaging moiety, the remaining R.sup.1 and R.sup.4 substituents are spectator groups, J is an ortho-linker, and n is an integer from 4 to 8. Imaging moieties useful for CT imaging include those comprising two or more iodine atoms. Imaging moieties useful for MRI include (i) organic moieties comprising four or more fluorine atoms; (ii) nitroxyl spin labeled moieties; and (iii) metal chelate moieties.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: December 8, 1998
    Assignee: Molecular Biosystems, Inc.
    Inventors: Ashwin M. Krishnan, Rolf Lohrmann
  • Patent number: 5716597
    Abstract: This invention relates to an oil-in-water emulsion that is of a water-insoluble gas-forming chemical and a stabilizer. The emulsion being capable of forming microbubbles of gas upon application of ultrasonic energy. This composition allows for site specific imaging as the image enhancing microbubbles can be released upon the application of ultrasonic energy at the specific location where the image is desired.
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: February 10, 1998
    Assignee: Molecular Biosystems, Inc.
    Inventors: Rolf Lohrmann, Kenneth J. Widder, Ashwin M. Krishnan, Dung Kevin Hong, Jialun Meng
  • Patent number: 5622687
    Abstract: Calixarene conjugates useful for imaging, particularly magnetic resonance imaging (MRI) and computed tomography (CT) are described. Said calixarene conjugates comprise (i) a calixarene backbone, and (ii) at least one imaging moiety linked thereto, and may be of the formula: ##STR1## wherein at least one of the R.sup.1 and R.sup.4 substituents comprises an imaging moiety, the remaining R.sup.1 and R.sup.4 substituents are spectator groups, J is an ortho-linker, and n is an integer from 4 to 8. Imaging moieties useful for CT imaging include those comprising two or more iodine atoms. Imaging moieties useful for MRI include (i) organic moieties comprising four or more fluorine atoms; (ii) nitroxyl spin labeled moieties; and (iii) metal chelate moieties.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: April 22, 1997
    Assignee: Molecular Biosystems, Inc.
    Inventors: Ashwin M. Krishnan, Rolf Lohrmann
  • Patent number: 5536489
    Abstract: This invention relates to an oil-in-water emulsion that is of a water-insoluble gas-forming chemical and a stabilizer. The emulsion being capable of forming microbubbles of gas upon application of ultrasonic energy. This composition allows for site specific imaging as the image enhancing microbubbles can be released upon the application of ultrasonic energy at the specific location where the image is desired.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: July 16, 1996
    Assignee: Molecular Biosystems, Inc.
    Inventors: Rolf Lohrmann, Kenneth J. Widder, Ashwin M. Krishnan, Dung K. Hong, Jialun Meng