Patents by Inventor Vaishali Nadkarni

Vaishali Nadkarni 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 preparation of malathion and its intermediate
    Patent number: 8138366
    Abstract: The present invention relates to the improved process for the preparation of highly pure form of S-[1,2-(dicarbethoxy)-ethyl]O,O-dimethyl phosphorodithioate having formula (I). The compound of formula (I) has adopted name “Malathion”. The present invention also relates to the novel process of preparing intermediate O,O-dimethyldithiophosphoric acid of formula (II), which is useful in the preparation of Malathion.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: March 20, 2012
    Assignee: Suven Life Sciences Limited
    Inventors: Veera Reddy Arava, Vaishali Nadkarni, Venkateswarlu Jasti
  • PROCESS FOR THE PREPARATION OF MALATHION AND ITS INTERMEDIATE
    Publication number: 20100204501
    Abstract: The present invention relates to the improved process for the preparation of highly pure form of S-[1,2-(dicarbethoxy)-ethyl]O,O-dimethyl phosphorodithioate having formula (I). The compound of formula (I) has adopted name “Malathion”. The present invention also relates to the novel process of preparing intermediate O,O-dimethyldithiophosphoric acid of formula (II), which is useful in the preparation of Malathion. The Malathion prepared by the process of this invention is highly storage stable and toxic impurities are much lower than any other commercial preparation available for the pharmaceutical purpose.
    Type: Application
    Filed: April 28, 2008
    Publication date: August 12, 2010
    Applicant: SUVEN LIFE SCIENCES LIMITED
    Inventors: Veera Reddy Arava, Vaishali Nadkarni, Venkateswarlu Jasti