Patents by Inventor Chad Dalton

Chad Dalton 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).

  • Polymorphic form of montelukast sodium
    Patent number: 7560559
    Abstract: The invention provides novel polymorphic form of montelukast sodium, as well as methods of using and pharmaceutical compositions containing saud novel form. Also provided are montelukast sodium: acetonitrile solvates, which are intermediates in the formation of crystalline montelukast sodium.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: July 14, 2009
    Assignees: Merck & Co., Inc., Merck Frosst Canada & Co.
    Inventors: Jun-Hong Chou, Michael B. Gentzler, James N. Michaels, Cynthia Bazin, Sophie-Dorothee Clas, Chad Dalton, Michael Guojie Wu
  • Polymorphic form of montelukast sodium
    Publication number: 20060194838
    Abstract: The invention provides novel polymorphic form of montelukast sodium, as well as methods of using and pharmaceutical compositions containing saud novel form. Also provided are montelukast sodium: acetonitrile solvates, which are intermediates in the formation of crystalline montelukast sodium.
    Type: Application
    Filed: April 12, 2004
    Publication date: August 31, 2006
    Inventors: Jun-Hong Chou, Michael Gentzler, James Michaels, Cynthia Bazin, Sophie-Dorothee Clas, Chad Dalton, Michael Wu
  • Polymorphic, amorphous and hydrated forms of 5-chloro-3-(4-methanesulfonyphenyl)-6'- methyl-[2,3']bipyridinyl
    Patent number: 6441002
    Abstract: Polymorphic, amorphous and hydrated forms of the title compound having the following structure: are disclosed. The compound is a potent and selective cyclooxygenase-2 (COX-2) inhibitor.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: August 27, 2002
    Assignees: Merck & Co., Inc., Merck Frosst Canada & Co.
    Inventors: Sophie Dorothee Clas, Louis S. Crocker, James A. McCauley, Ian Davies, Chad Dalton
  • Synthesis of 4-[(5-substituted phenyl)-3-substituted-1H-pyrazol-1-yl]benzenesulfonamide
    Patent number: 6232472
    Abstract: This invention encompasses a novel process for synthesizing the compound represented by formula I: These compounds are useful as non-steroidal anti-inflammatory agents.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: May 15, 2001
    Assignee: Merck Frosst Canada & Co.
    Inventors: Paul O'Shea, Xin Wang, Richard D. Tillyer, Sophie-Dorothee Clas, Chad Dalton
  • Synthesis of 4-[5-substituted or unsubstituted phenyl)-3-substituted-1H-pyrazol-1-yl]benzenesulfonamides
    Patent number: 6150534
    Abstract: This invention encompasses a novel process for synthesizing the compound represented by formula I: ##STR1## These compounds are useful as non-steroidal anti-inflammatory agents.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: November 21, 2000
    Assignee: Merck Frosst Canada & Co.
    Inventors: Paul O'Shea, Richard D. Tillyer, Xin Wang, Sophie-Dorothee Clas, Chad Dalton