Patents by Inventor Udayampalayam P. Senthilkumar

Udayampalayam P. Senthilkumar 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).

  • Salts in the Preparation of Cephalosporin Antibiodies
    Publication number: 20080306256
    Abstract: The present invention relates to an improved process for the preparation of cephalosporin antibiotics of formula (I). The present invention also provides new salts of compound of formula (II) and a process for the preparation of these new salts, where n=0.5 to 2. The present invention also provides a process for the preparation of compound of formula (I) using the new salts of formula (II).
    Type: Application
    Filed: July 4, 2005
    Publication date: December 11, 2008
    Applicant: Orchid Chemicals & Pharmaceuticals Limited
    Inventors: Udayampalayam P. Senthilkumar, Venu S. Lakshmipathi, Gnanaprakasam Andrew, Ramasubbu Chandrasekaran, Dindigala Nagender Rao, Gaddam Om Reddy
  • Process for the preparation of bisphosphonic acid
    Patent number: 7361761
    Abstract: The present invention is to relate an improved process using anisole as solvent for the preparation of compound of formula (I) and its pharmaceutically acceptable salts thereof. wherein R represents —NR1R2, or a group n=1, 2, 3, 4 and 5, where R1 and R2 may be same or different and independently represents hydrogen, or C1-6 alkyl.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: April 22, 2008
    Assignee: Orchid Chemicals & Pharmaceuticals Ltd.
    Inventors: Udayampalayam P. Senthilkumar, Thangavel Arulmoli, Venu S. Lakshmipathi, Siripragada M. Rao
  • Process for the preparation of cephalosporin antibiotic
    Patent number: 7345169
    Abstract: An improved one-pot process for the preparation of Ceftiofur of the formula (I) or its salt, without isolating intermediate compound
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: March 18, 2008
    Assignee: Orchid Chemicals & Pharmaceuticals Ltd.
    Inventors: Udayampalayam P. Senthilkumar, Kanagaraj Sureshkumar, Singaravel Mohan, Lakshminarayanan Arunkumar