Patents by Inventor Alok Kumar CHATERJEE

Alok Kumar CHATERJEE 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 microwave assisted synthesis of N-methyl pyrrolidone
    Patent number: 9090560
    Abstract: The present invention relates to a process for microwave assisted synthesis of N-methyl pyrrolidone (NMP). Particularly the process relates to the synthesis of N-methyl succinimide or corresponding analogs by using microwave irradiation which on hydrogenation in the presence of a hydrogenating catalyst gives N-methyl pyrrolidone. Compared to the conventional heating microwave process requires less energy inputs and reduces the reaction time drastically from 5-6 h to 2-5 min.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: July 28, 2015
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Praveen Kumar Khatri, Suman Lata Jain, Alok Kumar Chaterjee, Sain Bir
  • PROCESS FOR MICROWAVE ASSISTED SYNTHESIS OF N-METHYL PYRROLIDONE
    Publication number: 20150065731
    Abstract: The present invention relates to a process for microwave assisted synthesis of N-methyl pyrrolidone (NMP). Particularly the process relates to the synthesis of N-methyl succinimide or corresponding analogues by using microwave irradiation which on hydrogenation in the presence of a hydrogenating catalyst gives N-methyl pyrrolidone. Compared to the conventional heating microwave process requires less energy inputs and reduces the reaction time drastically from 5-6 h to 2-5 min.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 5, 2015
    Inventors: Praveen Kumar KHATRI, Suman Lata JAIN, Alok Kumar CHATERJEE, Sain BIR