Patents by Inventor Srinivas Darbha

Srinivas Darbha 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).

  • Patent number: 9650354
    Abstract: An efficient, hydrogen gas-free, high yielding, moderate temperature and safe-to-handle process for producing furan and its derivatives from furfural, which comprises contacting furfural and water-isopropanol mixture with a supported Pd or Pt catalyst at a temperature in the range of 200-250° C., is reported.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: May 16, 2017
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Srinivas Darbha, Bhogeswararao Seemala
  • Publication number: 20160297787
    Abstract: An efficient, hydrogen gas-free, high yielding, moderate temperature and safe-to-handle process for producing furan and its derivatives from furfural, which comprises contacting furfural and water-isopropanol mixture with a supported Pd or Pt catalyst at a temperature in the range of 200-250° C., is reported.
    Type: Application
    Filed: June 25, 2014
    Publication date: October 13, 2016
    Applicant: Council of Scientific & Industrial Research
    Inventors: Srinivas Darbha, Bhogeswararao Seemala
  • Patent number: 9062019
    Abstract: The present invention relates to an improved process for preparing mono and poly epoxy functionalized fatty acids, their esters and mixtures thereof using solid catalyst i.e. supported group VIb metal oxide, said support comprising silica, alumina and mixtures thereof, optionally with a promoter from group VA wherein the group VIB metal oxide content in the catalyst is 5-20 wt % of support.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: June 23, 2015
    Assignee: Council of Scientific and Industrial Research
    Inventors: Srinivas Darbha, Jitendra Kumar Satyarthi
  • Patent number: 8932980
    Abstract: The invention discloses three-dimensional, ordered, mesoporous titanosilicates wherein the Ti is in a tetrahedral geometry and exclusively substituted for Si in the silica framework. Such titanosilicates find use as catalysts for epoxidation, hydroxylation, C—H bond oxidation, oxidation of sulfides, aminolysis of epoxide and amoximation, with approx. 100% selectivity towards the products.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: January 13, 2015
    Assignee: Council of Scientific & Industrial Research
    Inventors: Srinivas Darbha, Anuj Kumar
  • Patent number: 8802876
    Abstract: An effective process for producing fatty acids catalyzed by double metal cyanide complex or a supported group VIb transition metal oxide, wherein the catalyst is stable and reusable.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: August 12, 2014
    Assignee: Council of Scientific and Industrial Research
    Inventors: Srinivas Darbha, Jitendra Kumar Satyarthi, Raja Thirumalaiswamy, Shilpa Shirish Deshpande
  • Publication number: 20130261322
    Abstract: The present invention relates to an improved process for preparing mono and poly epoxy functionalized fatty acids, their esters and mixtures thereof using solid catalyst i.e. supported group VIb metal oxide, said support comprising silica, alumina and mixtures thereof, optionally with a promoter from group VA wherein the group VIB metal oxide content in the catalyst is 5-20 wt % of support.
    Type: Application
    Filed: September 22, 2011
    Publication date: October 3, 2013
    Applicant: Council of Scientific and Industrial Research
    Inventors: Srinivas Darbha, Jitendra Kumar Satyarthi
  • Publication number: 20130116453
    Abstract: The invention discloses three-dimensional, ordered, mesoporous titanosilicates wherein the Ti is in a tetrahedral geometry and exclusively substituted for Si in the silica framework. Such titanosilicates find use as catalysts for epoxidation, hydroxylation, C—H bond oxidation, oxidation of sulfides, aminolysis of epoxide and amoximation, with approx. 100% selectivity towards the products.
    Type: Application
    Filed: July 20, 2011
    Publication date: May 9, 2013
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Srinivas Darbha, Anuj Kumar
  • Publication number: 20120215017
    Abstract: An effective process for producing fatty acids catalyzed by double metal cyanide complex or a supported group VIb transition metal oxide, wherein the catalyst is stable and reusable.
    Type: Application
    Filed: August 13, 2010
    Publication date: August 23, 2012
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Srinivas Darbha, Jitendra Kumar Satyarthi, Raja Thirumalaiswamy, Shilpa Shirish Deshpande
  • Patent number: 7842653
    Abstract: The present invention provides an improved process for the preparation of lubricants from vegetable oil or fat obtained from animal source. The present invention involves a reaction of vegetable oil or fat with an alcohol in the presence of a double metal cyanide catalyst, at a temperature in the range of 150° to 200° C. for a period of 3-6 hrs to obtain the desired bio-lubricant.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: November 30, 2010
    Assignee: Council of Scientific & Industrial Research
    Inventors: Srinivas Darbha, Rajendra Srivastava, Paul Ratnasamy
  • Publication number: 20070004599
    Abstract: The present invention provides an improved process for the preparation of lubricants from vegetable oil or fat obtained from animal source. The present invention involves a reaction of vegetable oil or fat with an alcohol in the presence of a double metal cyanide catalyst, at a temperature in the range of 150° to 200° C. for a period of 3-6 hrs to obtain the desired bio-lubricant.
    Type: Application
    Filed: May 26, 2006
    Publication date: January 4, 2007
    Inventors: Srinivas Darbha, Rajendra Srivastava, Paul Ratnasamy
  • Publication number: 20060258785
    Abstract: The present invention relates to an efficient process for the production of alkyl and aryl carbamates of the formula, RR?N—C(O)—OR?, wherein the said process comprises reacting an amine with carbon dioxide and organic halide compound in a solvent medium (use of which is optional), in the presence of a solid metal-containing catalyst, at a pressure of 1-15 bar and temperature between 0 to 180° C., for 0.5 to 5 hrs, separating the catalyst and recovering the corresponding carbamate formed by conventional methods; R, R? and R? are each selected independently from the group consisting of H, alkyl having 1-12 carbon atoms and aryl.
    Type: Application
    Filed: March 31, 2006
    Publication date: November 16, 2006
    Inventors: Srinivas Darbha, Srivastava Rajendra, Ratnasamy Paul