Patents by Inventor Tesfaye Biftu

Tesfaye Biftu 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: 7906649
    Abstract: The present invention is directed to novel substituted aminocyclohexanes which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DPP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: March 15, 2011
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Tesfaye Biftu, Danqing Feng, Xiaoxia Qian, Ann E. Weber, Jason Cox
  • Publication number: 20100324054
    Abstract: The present invention is directed to novel substituted aminotetrahydropyrans of structural formula I which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: August 27, 2010
    Publication date: December 23, 2010
    Inventors: Tesfaye Biftu, Ping Chen, Danqing Feng, Ann E. Weber
  • Patent number: 7812027
    Abstract: The present invention is directed to novel substituted aminotetrahydropyrans of structural formula I which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: October 12, 2010
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Tesfaye Biftu, Ping Chen, Danqing Feng, Ann E. Weber
  • Publication number: 20100234403
    Abstract: The present invention is directed to novel substituted aminotetrahydropyrans of structural formula I which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: February 9, 2007
    Publication date: September 16, 2010
    Inventors: Tesfaye Biftu, Charles G. Caldwell, Ann E. Weber, Ping Chen, Xiaoxia Qian, Danqing Feng, Jason M. Cox
  • Patent number: 7750034
    Abstract: The present invention is directed to novel substituted aminocyclohexanes of structural formula (I) which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: July 6, 2010
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Tesfaye Biftu, Jason Cox, Danqing Feng, Anthony Mastracchio, Xiaoxia Qian, Ann E. Weber
  • Publication number: 20100120863
    Abstract: The present invention is directed to novel substituted aminotetrahydropyrans of structural formula I which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: November 12, 2009
    Publication date: May 13, 2010
    Inventors: Tesfaye Biftu, Ping Chen, Jason M. Cox, Ann E. Weber
  • Patent number: 7678905
    Abstract: The present invention is directed to novel substituted aminotetrahydropyrans of structural formula I which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: March 16, 2010
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Tesfaye Biftu, Ann E. Weber
  • Publication number: 20090270467
    Abstract: The present invention is directed to novel substituted aminocyclohexanes of structural formula (I) which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: January 19, 2007
    Publication date: October 29, 2009
    Applicant: MERCK & CO., INC.
    Inventors: Tesfaye Biftu, Jason Cox, Danqing Feng, Anthony Mastracchio, Xiaoxia Qian, Ann E. Weber
  • Publication number: 20090209544
    Abstract: The present invention is directed to novel substituted aminotetrahydropyrans of structural formula I which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: May 11, 2007
    Publication date: August 20, 2009
    Inventors: Tesfaye Biftu, Ping Chen, Danqing Feng, Ann E. Weber
  • Patent number: 7560455
    Abstract: The pre-sent invention is directed to 3-amino-4-phenylbutanoic acid derivatives which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: July 14, 2009
    Assignee: Merck & Co., Inc.
    Inventors: Tesfaye Biftu, Danqing Dennis Feng, Gui Bai Liang, Xiaoxia Qian
  • Publication number: 20090105284
    Abstract: The present invention is directed to novel substituted aminocyclohexanes which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DPP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: May 19, 2006
    Publication date: April 23, 2009
    Applicant: MERCK & CO., INC.
    Inventors: Tesfaye Biftu, Danqing Feng, Xiaoxia Qian, Ann E. Weber, Jason Cox
  • Patent number: 7504501
    Abstract: Compounds described by the Formula (I): (I) or pharmaceutically acceptable salts, or N-oxides thereof. The compounds are useful for the treatment and prevention of protozoal diseases in mammals and birds. A method for controlling coccidiosis in poultry comprises administering an effective amount of the compound alone, or in combination with one or more anticoccidial agent(s). A composition for controlling coccidiosis in poultry comprises the compound alone, or in combination with one or more anticoccidial agent(s). Methods for the treatment and prevention of mammalian protozoal diseases, such as, for example, toxoplasmosis, malaria, African trypanosomiasis, Chagas disease, and opportunistic infections comprise administering the compound alone, or in combination with one or more antiprotozoal agent(s).
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: March 17, 2009
    Assignee: Merial Limited
    Inventors: Matthew J. Wyvratt, Tesfaye Biftu, Michael H. Fisher, Dennis M. Schmatz
  • Patent number: 7482336
    Abstract: The present invention is directed to novel substituted aminocyclohexanes which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DPP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: January 27, 2009
    Assignee: Merck & Co., Inc.
    Inventors: Tesfaye Biftu, Danqing Feng, Ying-Duo Gao, Suresh Singh, Ann E. Weber
  • Patent number: 7429590
    Abstract: Compounds described by the Formula (I) or (II): or pharmaceutically acceptable salts, or N-oxides thereof. The compounds are useful for the treatment and prevention of protozoal diseases in mammals and birds. A method for controlling coccidiosis in poultry comprises administering an effective amount of the compound alone, or in combination with one or more anticoccidieal agent(s). A composition for controlling coccidiosis in poultry comprises the compound alone, or in combination with one or more anticoccidial agent(s). Methods for the treatment and prevention of mammalian protozoal diseases, such as, for example, toxoplasmosis, malaria. African typanosomiasis, Chagas disease, and opportunistic infections comprise administering the compound alone, or in combination with one or more antiprotozoal agent(s).
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: September 30, 2008
    Assignee: Merck & Co. Inc.
    Inventors: Tesfaye Biftu, Matthew J. Wyvratt, Louis L. Zuegner, III, legal representative, Michael H. Fisher
  • Publication number: 20070254865
    Abstract: The present invention is directed to novel substituted aminocyclohexanes which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DPP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: June 17, 2005
    Publication date: November 1, 2007
    Inventors: Tesfaye Biftu, Danqing Feng, Ying-Duo Gao, Suresh Singh, Ann Weber
  • Publication number: 20070232676
    Abstract: The present invention is directed to novel substituted aminotetrahydropyrans of structural formula I which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 4, 2007
    Inventors: Tesfaye Biftu, Ann E. Weber
  • Patent number: 7259160
    Abstract: The present invention is directed to hexahydrodiazepinone compounds which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DPP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: August 21, 2007
    Assignee: Merck & Co., Inc.
    Inventors: Gui-Bai Liang, Tesfaye Biftu, Danqing Dennis Feng, Ann E. Weber
  • Patent number: 7196095
    Abstract: Compounds of formula (I) and pharmaceutically acceptable salts thereof are useful in the treatment of cytokine mediated diseases such as arthritis and in the treatment and/or prevention of protozoal diseases such as coccidiosis
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: March 27, 2007
    Assignee: Merck & Co., Inc.
    Inventors: Tesfaye Biftu, Richard Beresis, Richard Berger, Steven L. Colletti, James B. Doherty, Dennis D. Feng, Gui-Bai Liang, Dennis M. Schmatz, Xiaoxia Qian, David A. Claremon, Nigel J. Liverton, Charles J. McIntyre, Ernest W. Kovacs
  • Publication number: 20060293303
    Abstract: Compounds described by the Formula (I) or (II): or pharmaceutically acceptable salts, or N-oxides thereof. The compounds are useful for the treatment and prevention of protozoal diseases in mammals and birds. A method for controlling coccidiosis in poultry comprises administering an effective amount of the compound alone, or in combination with one or more anticoccidieal agent(s). A composition for controlling coccidiosis in poultry comprises the compound alone, or in combination with one or more anticoccidial agent(s). Methods for the treatment and prevention of mammalian protozoal diseases, such as, for example, toxoplasmosis, malaria. African typanosomiasis, Chagas disease, and opportunistic infections comprise administering the compound alone, or in combination with one or more antiprotozoal agent(s).
    Type: Application
    Filed: December 6, 2004
    Publication date: December 28, 2006
    Inventors: Tesfaye Biftu, Matthew Wyvratt, Michael Fisher
  • Publication number: 20060258646
    Abstract: The pre-sent invention is directed to 3-amino-4-phenylbutanoic acid derivatives which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. 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 the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: May 10, 2004
    Publication date: November 16, 2006
    Inventors: Tesfaye Biftu, Danqing Feng, Gui Liang, Xiaoxia Qian