Patents by Inventor Ravindar Koppera

Ravindar Koppera 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).

  • POLYMORPHIC FORMS OF VARDENAFIL
    Publication number: 20070197535
    Abstract: Crystalline polymorphic forms of vardenafil and vardenafil hydrochloride, and processes for preparing them.
    Type: Application
    Filed: September 27, 2006
    Publication date: August 23, 2007
    Inventors: Eswaraiah Sajja, Ravindar Koppera, Satyanarayana Revu, Venkata Vajrala, Vijayapal Kanumathi
  • PRIMIDONE PROCESS AND COMPOSITIONS
    Publication number: 20070149779
    Abstract: The present invention relates to a process for the preparation of primidone. It also relates to compositions comprising primidone of desired particle size distribution, processes for the preparation of such particles and processes for the preparation of the compositions.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 28, 2007
    Inventors: Eswaraiah Sajja, Sudeep Agrawal, Alagumurugan Alagarsamy, Ravindar Koppera, Madhusudhan Ganta, Ramesh Konda, Ganesh Varanasi, Indu Bhushan, Mailatur Mohan, Asif Anwar