Patents by Inventor Eswaraiah Sajja

Eswaraiah Sajja 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).

  • Process for making crystalline form I of clopidogrel hydrogen sulphate
    Publication number: 20060205766
    Abstract: A process for preparation of crystalline Form I of clopidogrel hydrogen sulphate, that include separating the crystalline Form I of clopidogrel hydrogen sulphate from a solution of clopidogrel freebase in a solvent, which is 2-propanol or 2-butanol is provided.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 14, 2006
    Inventors: Eswaraiah Sajja, Raghupathi Anumula, Bhaskara rao Uppala
  • Process for preparing crystalline form A of valdecoxib
    Publication number: 20050272787
    Abstract: Valdecoxib Form A is prepared by a process comprising adding aqueous ammonia to a solution of 4-(5-methyl-3-phenyl-4-isoxazolyl)benzenesulfonyl chloride in a halogenated hydrocarbon or water.
    Type: Application
    Filed: May 19, 2005
    Publication date: December 8, 2005
    Inventors: Eswaraiah Sajja, Anumula Reddy, Aalla Sampath, Gilla Goverdhan