Patents by Inventor Sharma Arun Prakash

Sharma Arun Prakash 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).

  • Method of preparation of paclitaxel (taxol) using 3-(alk-2-ynyloxy) carbonyl-5-oxazolidine carboxylic acid
    Patent number: 6506905
    Abstract: 3-(alk-2-ynyloxy)carbonyl-5-oxazolidine carboxylic acid and its analogs having a formula and wherein R1 is hydrogen, aryl, heteroaryl, alkyl, alkenyl, alkynyl, R2 and R3 are independently selected from hydrogen, alkyl, alkenyl, alkynyl, aryl, heteroaryl, R4 is hydrogen, alkyl, alkenyl, alkynyl, aryl, substituted aryl, heteroaryl, R5 and R6 independently selected from hydrogen, alkyl, alkenyl,alkynyl, arly, heteroaryl, alkoxy, alkeyloxy, alkynyloxy, aryloxy, heteroaryloxy.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: January 14, 2003
    Assignee: Dabur India Limited
    Inventors: Sharma Arun Prakash, Sarkar Subrata