Patents by Inventor Kenneth John Butcher

Kenneth John Butcher 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: 20140248252
    Abstract: The present invention is directed to 4-[2-(5-amino-1H-pyrazol-4-yl)-4-chlorophenoxy]-5-chloro-2-fluoro-N-(1,3-thiazol-4-yl)benzenesulfonamide or a pharmaceutically acceptable salt thereof for the treatment of a disease associated with elevated blood uric acid levels, such as hyperuricemia or gout. The invention is also directed to the tosylate salt of 4-[2-(5-amino-1H-pyrazol-4-yl)-4-chlorophenoxy]-5-chloro-2-fluoro-N-(1,3-thiazol-4-yl)benzenesulfonamide.
    Type: Application
    Filed: October 19, 2012
    Publication date: September 4, 2014
    Applicant: PFIZER LIMITED
    Inventors: Zahid Ali, Kenneth John Butcher, Richard Philip Butt, Stephen John Felstead, Sophie Glatt, Ruth Mitchell McKernan, Maninder Panesar
  • Patent number: 8222273
    Abstract: The present invention relates to a polymorphic form B of ?/-[3-tert-butyl-1-(3-chloro-4-hydroxyphenyl)-1H-pyrazol-5-yl]-N-{2-[(3-{2-[(2-hydroxyethyl)sulfanyl]phenyl}[1,2,4]triazolo[4,3-a]pyridin-6-yl)sulfanyl]benzyl}urea (I) as de-fined herein. This polymorph is useful in the treatment of various conditions, particularly in the treatment of inflammatory conditions such as chronic obstructive pulmonary disease.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: July 17, 2012
    Assignee: Pfizer Limited
    Inventor: Kenneth John Butcher
  • Publication number: 20110003848
    Abstract: The present invention relates to a polymorphic form B of ?/[3-tert-butyl-1-(3-chloro-4-hydroxyphenyl)-1H-pyrazol-5-yl]-N-{2-[(3-{2-[(2-hydroxyethyl)sulfanyl]phenyl}[1,2,4]triazolo[4,3-a]pyridin-6-yl)sulfanyl]benzyl}urea (I) as de-fined herein. This polymorph is useful in the treatment of various conditions, particularly in the treatment of inflammatory conditions such as chronic obstructive pulmonary disease.
    Type: Application
    Filed: January 28, 2009
    Publication date: January 6, 2011
    Inventor: Kenneth John Butcher