Patents by Inventor Praphulla Narahar Joshi

Praphulla Narahar Joshi 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 conversion of isobutylene to tertiary butylamine
    Patent number: 8722935
    Abstract: The invention discloses an improved process for the conversion of isobutylene to tertiary butylamine with conversion up to 50% at pressure lower than 40 bar.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: May 13, 2014
    Assignee: Council of Scientific & Industrial Research
    Inventors: Vijav Vasant Bokade, Praphulla Narahar Joshi, Prashant Suresh Niphadkar
  • PROCESS FOR CONVERSION OF ISOBUTYLENE TO TERTIARY BUTYLAMINE
    Publication number: 20130096349
    Abstract: The invention discloses an improved process for the conversion of isobutylene to tertiary butylamine with conversion up to 50% at pressure lower than 40 bar.
    Type: Application
    Filed: June 17, 2011
    Publication date: April 18, 2013
    Applicant: ANUSANDHAN BHAWAN
    Inventors: Vijav Vasant Bokade, Praphulla Narahar Joshi, Prashant Suresh Niphadkar
  • Process for the production of pyridine and picolines
    Patent number: 7365204
    Abstract: An process for the preparation of pyridine and/or picolines is disclosed. The process comprises contacting a mixture of carbonyl compound with ammonia in the presence of surface-passivated titanium-silicate catalyst in gas phase at a temperature ranging between 300-500° C., at gas space velocity in the range of 300 to 3000 h?1 and at a pressure ranging between 1 to 10 atmosphere, condensing and separating the products by conventional methods and if desired, further purifying the product using well known conventional methods.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: April 29, 2008
    Assignees: Council of Scientific and Industrial Research, Jubliant Organosys Limited
    Inventors: Rajiv Kumar, Praphulla Narahar Joshi, Gopal Moreshwar Chaphekar, Prashant Suresh Niphadkar, Ashutosh Agarwal, Pradeep Kumar Verma, Kumar Samir Singh