Patents by Inventor Dillip Kumar CHAND

Dillip Kumar CHAND 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).

  • Sulfoxidation catalysts and methods for their preparation and use
    Patent number: 9982002
    Abstract: Methods and compositions of catalysts for sulfoxidation reaction processes are disclosed. The sulfoxidation reaction process can be performed in an aqueous medium, and the catalysts can be recycled for further use. In some embodiments, a method of making a catalyst may include contacting a transition metal compound with an oxidizing agent to form a first solution, contacting a carboxylic acid compound with a cationic surfactant to form a second solution, mixing the first solution and the second solution to form a precipitate, and isolating the precipitate.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: May 29, 2018
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
    Inventors: Dillip Kumar Chand, Rajan Deepan Chakravarthy
  • SULFOXIDATION CATALYSTS AND METHODS FOR THEIR PREPARATION AND USE
    Publication number: 20160251388
    Abstract: Methods and compositions of catalysts for sulfoxidation reaction processes are disclosed. The sulfoxidation reaction process can be performed in an aqueous medium, and the catalysts can be recycled for further use. In some embodiments, a method of making a catalyst may include contacting a transition metal compound with an oxidizing agent to form a first solution, contacting a carboxylic acid compound with a cationic surfactant to form a second solution, mixing the first solution and the second solution to form a precipitate, and isolating the precipitate.
    Type: Application
    Filed: September 8, 2014
    Publication date: September 1, 2016
    Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
    Inventors: Dillip Kumar CHAND, Rajan Deepan CHAKRAVARTHY