Patents by Inventor Essa Hu

Essa Hu 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: 20090062277
    Abstract: The present invention is directed to certain compounds useful as phosphodiesterase 10 (PDE10) inhibitors that have the formula where R1, R2, R3, R4, X, Y and Z are as defined herein, pharmaceutical compositions containing such compounds and processes for preparing such compounds. The invention is also directed to methods of treating diseases mediated by PDE10, such as obesity, non-insulin dependent diabetes, schizophrenia, bipolar disorder, obsessive-compulsive disorder, and the like.
    Type: Application
    Filed: August 20, 2008
    Publication date: March 5, 2009
    Inventors: Essa Hu, Roxanne Kunz, Ning Chen, Tom Nixey, Stephen Hitchcock
  • Publication number: 20090062291
    Abstract: The present invention is directed to compounds, useful as PDE10 inhibitors, having the formula where R1, R2, R3, R4, X, Y and Z are as defined herein, pharmaceutical compositions containing such compounds and processes for preparing such compounds. The invention is also directed to methods of treating diseases mediated by PDE10, such as obesity, non-insulin dependent diabetes, schizophrenia, bipolar disorder, obsessive-compulsive disorder, and the like.
    Type: Application
    Filed: August 21, 2008
    Publication date: March 5, 2009
    Inventors: Essa Hu, Roxanne Kunz, Tom Nixey, Stephen Hitchcock
  • Publication number: 20090054434
    Abstract: The present invention is directed to certain isoquinolin-1(2H)-one compounds, useful as PDE10 inhibitors, having the formula: where R1, R2, R3, R4 and R5 are as defined herein, pharmaceutical compositions containing such compounds and processes for preparing such compounds. The invention is also directed to methods of treating diseases mediated by PDE10, such as obesity, non-insulin dependent diabetes, schizophrenia, bipolar disorder, obsessive-compulsive disorder, and the like.
    Type: Application
    Filed: August 22, 2008
    Publication date: February 26, 2009
    Applicants: Amgen Inc., Memory Pharmaceuticals Corp.
    Inventors: Essa Hu, Roxanne Kunz, Ning Chen, Ruiping Liu
  • Publication number: 20080318946
    Abstract: The present invention comprises a new class of compounds capable of modulating the c-kit receptor and, accordingly, useful for treatment of c-kit mediated diseases, including various fibrotic and mast cell related diseases such as mastocytosis. The compounds have a general Formula I wherein R1-6, X and Y are defined herein. The invention further comprises pharmaceutical compositions, methods for treatment of c-kit mediated diseases, and intermediates and processes useful for the preparation of compounds of the invention.
    Type: Application
    Filed: July 18, 2007
    Publication date: December 25, 2008
    Applicant: AMGEN INC.
    Inventors: Ning Chen, Essa Hu
  • Publication number: 20080249090
    Abstract: The present invention comprises a new class of compounds capable of modulating the c-kit receptor and, accordingly, useful for treatment of c-kit mediated diseases, including various inflammatory, fibrotic and/or mast cell mediated diseases such as mastocytosis. The compounds have a general Formula I wherein A0-3 and R1-6 are defined herein. The invention further comprises pharmaceutical compositions, methods for treatment of c-kit mediated diseases, and intermediates and processes useful for the preparation of compounds of the invention.
    Type: Application
    Filed: July 18, 2007
    Publication date: October 9, 2008
    Applicant: AMGEN INC.
    Inventors: Essa Hu, Jason Brooks Human, Roxanne Kunz, Andrew Tasker, Ryan White
  • Publication number: 20080227779
    Abstract: The present invention comprises a new class of compounds capable of modulating the c-kit protein kinase and, accordingly, useful for treatment of c-kit mediated diseases including, without limitation, autoimmune disease, allergies, mastcytosis, mast cell related tumors and various fibrotic diseases. The compounds have a general Formula I wherein R1-5, X, Y and Z are defined herein. The invention further comprises pharmaceutical compositions, methods for treatment of c-kit mediated diseases, and intermediates and processes useful for the preparation of compounds of the invention.
    Type: Application
    Filed: July 18, 2007
    Publication date: September 18, 2008
    Applicant: AMGEN INC.
    Inventors: Ning Chen, Essa Hu, Roxanne Kunz, Shannon Rumfelt, Andrew Tasker
  • Publication number: 20070287716
    Abstract: The present invention is directed to compounds which are potentiators of metabotropic glutamate receptors, including the mGluR2 receptor, and which are useful in the treatment or prevention of neurological and psychiatric disorders associated with glutamate dysfunction and diseases in which metabotropic glutamate receptors are involved. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which metabotropic glutamate receptors are involved.
    Type: Application
    Filed: October 24, 2005
    Publication date: December 13, 2007
    Inventors: Essa Hu, Jean-Michel Vernier, Peter Chua, John Hutchinson, Nicholas Cosford
  • Publication number: 20070265256
    Abstract: The present invention is directed to certain cinnoline compounds that are PDE10 inhibitors, pharmaceutical compositions containing such compounds and process for preparing such compounds. This invention is also directed to methods of treating diseases treatable by inhibition of PDE10 enzyme, such as obesity, non-insulin dependent diabetes, schizophrenia, bipolar disorder, obsessive-compulsive disorder, and the like.
    Type: Application
    Filed: February 20, 2007
    Publication date: November 15, 2007
    Inventors: Mark Arrington, Ruiping Liu, Allen Hopper, Richard Conticello, Truc Nguyen, Carla Gauss, Roland Burli, Stephen Hitchcock, Essa Hu, Roxanne Kunz, Thomas Nixey, Shannon Rumfelt, Nign Chen
  • Publication number: 20060194807
    Abstract: Novel pyrazole compounds such as compounds of the formula (I): (where A, A1, A2, B, R11, W, X, Y and Z are as defined herein) in which the pyrazole is substituted directly, or by a bridge, with i) a heteroaryl moiety containing N adjacent to the point of connection of the heteroaryl, and ii) another heteroaryl or aryl ring, with at least one of the rings being further substituted with another ring, are mGluR5 modulators useful in the treatment of psychiatric and mood disorders such as, for example, schizophrenia, anxiety, depression, panic, and bipolar disorder, as well as in the treatment of pain, Parkinson's disease, cognitive dysfunction, epilepsy, circadian rhythm disorders, obesity, drug addiction, drug abuse, drug withdrawal and other diseases.
    Type: Application
    Filed: March 30, 2004
    Publication date: August 31, 2006
    Inventors: Nicholas Cosford, Brian Eastman, Dehua Huang, Nicholas Smith, Lida Tehrani, Essa Hu
  • Publication number: 20060069088
    Abstract: Cyclopentyl compounds linked to a benzoxazinyl group through an amido moiety utilizing the ring nitrogen of the benzoxazine, and further substituted with a heterocyclic moiety, such compounds represented by formula I: which are used to modulate the CCR-2 chemokine receptor to prevent or treat inflammatory and immunoregulatory disorders and diseases, allergic diseases, atopic conditions including allergic rhinitis, dermatitis, conjunctivitis, and asthma, as well as autoimmune pathologies such as rheumatoid arthritis and atherosclerosis; and pharmaceutical compositions comprising these compounds and the use of these compounds and compositions.
    Type: Application
    Filed: May 13, 2005
    Publication date: March 30, 2006
    Inventors: Stephen Goble, Sander Mills, Lihu Yang, Alexander Pasternak, Celine Bonnefous, Theodore Kamenecka, Jean-Michel Vernier, John Hutchinson, Essa Hu, Steven Govek