Patents by Inventor Chris Litten

Chris Litten 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: 7319163
    Abstract: This invention relates to novel compounds which are thyroid receptor ligands, preferably antagonists, and to methods for using such compounds in the treatment of cardiac arrhythmias, thyrotoxicosis and subclinical hyperthyrodism.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: January 15, 2008
    Assignee: Karo Bio AB
    Inventors: Johan Malm, Chris Litten, Theresa Apelqvist, Asa Hedfors, Peter Brandt, Karin Edvinsson, Sandra Gordon
  • Patent number: 7288571
    Abstract: New thyroid receptor ligands are provided which have general formula (I) in which: n is an integer from 0 to 4; R1 is halogen, trifluoromethyl, or alkyl of 1 to 6 carbons or cycloalkyl of 3 to 7 carbons; R2 and R3 are the same or different and are hydrogen, halogen, alkyl of 1 to 4 carbons or cycloalkyl of 3 to 5 carbons, at least one of R2 and R3 being other than hydrogen; R4 is a carboxylic acid amide (CONR?R?) or an acylsulphonamide (CONHSO2R?) derivative, or a pharmaceutically acceptable salt thereof, and all stereolsom thereof; or when n is equal to or greater than one, R4 may be heteroaromatic moiety which may be substituted or unsubstituted, or an amine (NR?R?). R5 is hydrogen or an acyl (such as acetyl or benzoyl) or other group capable of bioconversion to generate the free phenol structure (wherein R5—H).
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: October 30, 2007
    Assignee: Karo Bio AB
    Inventors: Jon Hangeland, Minsheng Zhang, Yolanda Caringal, Denis Ryono, Yi-Lin Li, Johan Malm, Ye Liu, Neeraj Garg, Chris Litten, Ana Maria Garcia Collazo, Konrad Koehler
  • Patent number: 7199265
    Abstract: This invention relates to compounds of the formula (I) which are thyroid receptor ligands, and are preferably selective for the thyroid hormone receptor ?, to methods of preparing such compounds and to methods for using such compounds such as in the regulation of metabolism.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: April 3, 2007
    Assignee: Karo Bio AB
    Inventors: Li Yi-Lin, Johan Malm, Chris Litten, Ana Maria Garcia Collazo, Neeraj Garg
  • Patent number: 7005538
    Abstract: This invention relates to novel compounds which are thyroid receptor ligands, preferably antagonists, and to methods for using such compounds in the treatment of cardiac arrhythmias, thyrotoxicosis and subclinical hyperthyrodism.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: February 28, 2006
    Assignee: Karo Bio AB
    Inventors: Johan Malm, Chris Litten, Theresa Apelqvist, Asa Hedfors, Peter Brandt, Karin Edvinsson, Sandra Gordon
  • Patent number: 6989402
    Abstract: New thyroid receptor ligands are provided which have general formula (I) in which: n is an integer from 0 to 4; R1 is halogen, trifluoromethyl, or alkyl of 1 to 6 carbons or cycloalkyl of 3 to 7 carbons; R2 and R3 are the same or different and are hydrogen, halogen, alkyl of 1 to 4 carbons or cycloalkyl of 3 to 5 carbons, at least one of R2 and R3 being other than hydrogen; R4 is a carboxylic acid amide (CONR?R?) or an acylsulphonamide (CONHSO2R?) derivative, or a pharmaceutically acceptable salt thereof, and all stereoisomers thereof; or when n is equal to or greater than one, R4 may be a heteroaromatic moiety which may be substituted or unsubstituted, or an amine (NR?R?). R5 is hydrogen or an acyl (such as acetyl or benzoyl) or other group capable of bioconversion to generate the free phenol structure (wherein R5=H).
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: January 24, 2006
    Assignee: Karo Bio AB
    Inventors: Jon Hangeland, Minsheng Zhang, Yolanda Caringal, Denis Ryono, Yi-Lin Li, Johan Malm, Ye Liu, Neeraj Garg, Chris Litten, Ana Maria Garcia Collazo, Konrad Koehler
  • Publication number: 20050282872
    Abstract: New thyroid receptor ligands are provided which have general formula (I) in which: n is an integer from 0 to 4; R1 is halogen, trifluoromethyl, or alkyl of 1 to 6 carbons or cycloalkyl of 3 to 7 carbons; R2 and R3 are the same or differential hydrogen, halogen, alkyl of 1 to 4 carbons or cycloalkyl of 3 to 5 carbons, at least one of R2 and R3 being other than hydrogen; R4 is a carboxylic acid thereof; or when n is equal to or greater than one, R4 may be heteroaromatic moiety which may be substituted or unsubstituted, or an amine (NR?R?). R5 is hydrogen or an acyl (such as acetyl or benzoyl) or other group capable of bioconversion to generate the free phenol structure (wherein R5—H). In addition, a method is provided for preventing, inhibiting or treating a disease associated with metabolism dysfunction or which is dependant upon the expression of a T3 regulated gene, wherein a compound as described above is administered in a therapeutically effective amount.
    Type: Application
    Filed: July 26, 2005
    Publication date: December 22, 2005
    Inventors: Jon Hangeland, Minsheng Zhang, Yolanda Caringal, Denis Ryono, Yi-Lin Li, Johan Malm, Ye Liu, Neeraj Garg, Chris Litten, Ana Collazo, Konrad Koehler
  • Publication number: 20050267206
    Abstract: This invention relates to novel compounds which are thyroid receptor ligands, preferably antagonists, and to methods for using such compounds in the treatment of cardiac arrhythmias, thyrotoxicosis and subclinical hyperthyrodism.
    Type: Application
    Filed: June 24, 2005
    Publication date: December 1, 2005
    Inventors: Johan Malm, Chris Litten, Theresa Apelqvist, Asa Hedfors, Peter Brandt, Karin Edvinsson, Sandra Gordon
  • Publication number: 20040097589
    Abstract: This invention relates to compounds of the formula (I) which are thyroid receptor ligands, and are preferably selective for the thyroid hormone receptor &bgr;, to methods of preparing such compounds and to methods for using such compounds such as in the regulation of metabolism.
    Type: Application
    Filed: April 22, 2003
    Publication date: May 20, 2004
    Inventors: Li Yi-Lin, Johan Malm, Chris Litten, Ana Maria Garcia Collazo, Neeraj Garg