Patents by Inventor Rupesh Pawar

Rupesh Pawar 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).

  • Method of making carbonyl compounds
    Patent number: 7423184
    Abstract: A method of making a carbonyl compound comprises contacting a compound comprising a secondary hydroxyl group with a basic metal oxide catalyst at a temperature sufficient to maintain the compound comprising a secondary hydroxyl group in a vapor phase.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: September 9, 2008
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Hugo Ingelbrecht, Arun Kumar, Ashok Ramakrishnan Menon, Pradeep Nadkarni, Rupesh Pawar
  • Optical article having anti-theft feature and a system and method for inhibiting theft of same
    Publication number: 20070116988
    Abstract: An optical article for being transformed from a pre-activated state of functionality to an activated state of functionality is provided. The optical article includes a convertible element disposed in or proximate to the optical article and being responsive to an external stimulus. The convertible element for irreversibly altering the optical article from the pre-activated state of functionality to the activated state of functionality upon interaction with the external stimulus.
    Type: Application
    Filed: November 21, 2005
    Publication date: May 24, 2007
    Inventors: Marc Wisnudel, Terry Topka, Pingfan Wu, Radislav Potyrailo, David Gascoyne, William Smith, Adil Dhalla, Yogendrasinh Chauhan, Rupesh Pawar, Bharat Singh, Sriramakrishna Maruvada, Vandita Pai-Paranjape, Kenneth Welles, Philippe Schottland, Eugene Olczak, Ashok Menon
  • Catalyst and method for the alkylation of hydroxyaromatic compounds
    Patent number: 7208438
    Abstract: A method of making a catalyst comprising mixing a metal oxide precursor and a pore former to form a metal oxide precursor mixture and calcining the metal oxide precursor mixture in the presence of a flowing gas having a flow rate to form the catalyst comprising metal oxide. The catalyst comprises a first distribution of pores having a median pore diameter of 10 to 50 angstroms and a second distribution of pores having a median pore diameter of 1 to 500 angstroms. The median pore diameter of the second distribution of pores is inversely related to the flow rate of the gas.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: April 24, 2007
    Assignee: General Electric Company
    Inventors: Hugo Gerard Eduard Ingelbrecht, Sabyasachi Mandal, Ashok Menon, Pradeep Nadkarni, Rupesh Pawar, Kuppuswamy Raghunathan, Gert-Jan Schoenmakers, Sahida Sharma
  • Method of making carbonyl compounds
    Publication number: 20070049767
    Abstract: A method of making a carbonyl compound comprises contacting a compound comprising a secondary hydroxyl group with a basic metal oxide catalyst at a temperature sufficient to maintain the compound comprising a secondary hydroxyl group in a vapor phase.
    Type: Application
    Filed: August 29, 2005
    Publication date: March 1, 2007
    Inventors: Hugo Ingelbrecht, Arun Kumar, Ashok Menon, Pradeep Nadkarni, Rupesh Pawar
  • Process for producing phenol
    Patent number: 7109385
    Abstract: A process for producing a phenol product generally comprises a first step comprising reacting in a first reactor a feed stream comprising cumene hydroperoxide and water with an acid catalyst to produce an effluent comprising the phenol product, acetone, and at least 1% by weight residual cumene hydroperoxide, and a second step comprising passing the effluent into a second reactor and decomposing the residual cumene hydroperoxide, wherein during said process the ratio of phenol to acetone is maintained at a molar ratio of greater than 1:1, and wherein the water in each of the first and second steps is present in an amount more than 0 and less than or equal to 5 weight percent based on the total weight of the feed stream or effluent, and wherein the process is continuous.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: September 19, 2006
    Assignee: General Electric Company
    Inventors: Prashant Anil Tatake, Pramod Shankar Kumbhar, Bharat Singh, John William Fulmer, Sabyasachi Mandal, Arun N. Kumar, Rupesh Pawar
  • Process for producing phenol
    Publication number: 20050222466
    Abstract: A process for producing a phenol product generally comprises a first step comprising reacting in a first reactor a feed stream comprising cumene hydroperoxide and water with an acid catalyst to produce an effluent comprising the phenol product, acetone, and at least 1% by weight residual cumene hydroperoxide, and a second step comprising passing the effluent into a second reactor and decomposing the residual cumene hydroperoxide, wherein during said process the ratio of phenol to acetone is maintained at a molar ratio of greater than 1:1, and wherein the water in each of the first and second steps is present in an amount more than 0 and less than or equal to 5 weight percent based on the total weight of the feed stream or effluent, and wherein the process is continuous.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 6, 2005
    Inventors: Prashant Tatake, Pramod Kumbhar, Bharat Singh, John Fulmer, Sabyasachi Mandal, Arun Kumar, Rupesh Pawar
  • Catalyst and method for the alkylation of hydroxyaromatic compounds
    Publication number: 20050004407
    Abstract: A method of making a catalyst comprising mixing a metal oxide precursor and a pore former to form a metal oxide precursor mixture and calcining the metal oxide precursor mixture in the presence of a flowing gas having a flow rate to form the catalyst comprising metal oxide. The catalyst comprises a first distribution of pores having a median pore diameter of 10 to 50 angstroms and a second distribution of pores having a median pore diameter of 1 to 500 angstroms. The median pore diameter of the second distribution of pores is inversely related to the flow rate of the gas.
    Type: Application
    Filed: July 30, 2004
    Publication date: January 6, 2005
    Inventors: Hugo Gerard Ingelbrecht, Sabyasachi Mandal, Ashok Menon, Pradeep Nadkarni, Rupesh Pawar, Kuppuswamy Raghunathan, Gert-Jan Schoenmakers, Sahida Sharma