Patents by Inventor Rajendra Narayaurao Kankan

Rajendra Narayaurao Kankan 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).

  • Preparation of phthalanes
    Patent number: 6903228
    Abstract: Citalopram and other phthalanes are made by reacting a salt of a compound of formula (II) where R1 is halogen and R2 is halogen, trifluoromethyl, cyano or R—CO— where R is a C1-4 alkyl group, with cuprous cyanide.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: June 7, 2005
    Assignee: Cipla Limited
    Inventors: Yusuf Khwaja Hamied, Rajendra Narayaurao Kankan, Dhanmaraj Ramachandra Rao
  • Preparation of phthalanes
    Publication number: 20040092755
    Abstract: Citalopram and other phthalanes are made by reacting a salt of a compound of formula (II) where R1 is halogen and R2 is halogen, trifluoromethyl, cyano or R—CO— where R is a C1-4 alkyl group, with cuprous cyanide.
    Type: Application
    Filed: November 18, 2003
    Publication date: May 13, 2004
    Inventors: Yusuf Khwaja Hamied, Rajendra Narayaurao Kankan, Dhanmaraj Ramachandra Rao