Patents by Inventor Ramalakshmi Y. Chandrasekaran

Ramalakshmi Y. Chandrasekaran 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: 8536164
    Abstract: Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I: and pharmaceutically acceptable salts thereof, wherein X, Y, A, R4, n, and R7 are as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: September 17, 2013
    Assignee: Pfizer Inc.
    Inventors: Todd W. Butler, Ramalakshmi Y. Chandrasekaran, Scot R. Mente, Chakrapani Subramanyam, Travis T. Wager
  • Publication number: 20120220568
    Abstract: This invention is directed to a compound of formula I, wherein R1, R2, R4, R5, R6, R7, R8 and n are as defined herein, or a pharmaceutically acceptable salt thereof; a pharmaceutical composition containing a compound of formula I, a process of preparation of a compound of formula I, a method of treatment of a disorder or condition such as depression, mood disorders, schizophrenia, anxiety disorders, Alzheimer's disease, attention-deficit hyperactivity disorder (ADHD), psychotic disorders, cognitive disorders, sleep disorders, obesity, dizziness, epilepsy, motion sickness, respiratory diseases, allergy, allergy-induced airway responses, allergic rhinitis, nasal congestion, allergic congestion, congestion, hypotension, cardiovascular disease, diseases of the GI tract, hyper and hypo motility and acidic secretion of the gastro-intestinal tract that may be treated by antagonizing histamine H3 receptors, the method comprising administering to a mammal in need of such treatment a compound of formula I as descri
    Type: Application
    Filed: March 9, 2012
    Publication date: August 30, 2012
    Inventors: Travis T. Wager, Ramalakshmi Y. Chandrasekaran, Todd William Butler
  • Publication number: 20120157440
    Abstract: Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I: and pharmaceutically acceptable salts thereof, wherein X, Y, A, R4, n, and R7 are as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 21, 2012
    Inventors: TODD W. BUTLER, Ramalakshmi Y. Chandrasekaran, Scot R. Mente, Chakrapani Subramanyam, Travis T. Wager
  • Patent number: 8158673
    Abstract: This invention is directed to a compound of formula I, as defined herein, or a pharmaceutically acceptable salt thereof; a pharmaceutical composition containing a compound of formula I, a process of preparation of a compound of formula I, a method of treatment of a disorder or condition that may be treated by antagonizing histamine H3 receptors, the method comprising administering to a mammal in need of such treatment a compound of formula I as described above, and a method of treatment of a disorder or condition selected from the group consisting of depression, mood disorders, schizophrenia, anxiety disorders, Alzheimer's disease, attention-deficit hyperactivity disorder (ADHD), psychotic disorders, cognitive disorders, sleep disorders, obesity, dizziness, epilepsy, motion sickness, respiratory diseases, allergy, allergy-induced airway responses, allergic rhinitis, nasal congestion, allergic congestion, congestion, hypotension, cardiovascular disease, diseases of the GI tract, hyper and hypo motility and
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: April 17, 2012
    Assignee: Pfizer Inc.
    Inventors: Travis T. Wager, Ramalakshmi Y Chandrasekaran, Todd William Butler
  • Patent number: 7115600
    Abstract: This invention is directed to a compound of the formula I as defined herein, or a pharmaceutically acceptable salt thereof; a pharmaceutical composition containing a compound of formula I, a method of treatment of a disorder or condition that may be treated by modulating histamine H3 receptors, the method comprising administering to a mammal in need of such treatment a compound of formula I as described above, and a method of treatment of a disorder or condition selected from the group consisting of depression, mood disorders, schizophrenia, anxiety disorders, Alzheimer's disease, attention-deficit hyperactivity disorder (ADHD), psychotic disorders, sleep disorders, obesity, dizziness, epilepsy, motion sickness, respiratory diseases, allergy, allergy-induced airway responses, allergic rhinitis, nasal congestion, allergic congestion, congestion, hypotension, cardiovascular disease, diseases of the GI tract, hyper and hypo motility and acidic secretion of the gastro-intestinal tract, the method comprising a
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: October 3, 2006
    Assignee: Pfizer Inc.
    Inventors: Travis T. Wager, Ramalakshmi Y. Chandrasekaran