Patents by Inventor Mahavir S. Khanna

Mahavir S. Khanna 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 the manufacture of form 1 ranitidine hydrochloride
    Patent number: 5621120
    Abstract: A process for the manufacture of Form 1 ranitidine hydrochloride (N-[2-[[[5-(Dimethylamino)methyl]-2-furanyl]methyl]thio]ethyl-N'-methyl-2- nitro-1,1-ethenediamine) hydrochloride, is described. A process to convert ranitidine hydrochloride Form 2 to Form 1 is also described.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: April 15, 1997
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Jag M. Khanna, Naresh Kumar, Brij Khera, Mahavir S. Khanna