Patents by Inventor Rajesh Shende
Rajesh Shende 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).
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Patent number: 8623156Abstract: An improved method for the production of pyrophoric materials which does not employ hot NaOH and produces pyrophoric materials on various types of ceramic, metal, nanomaterial substrates. The method impregnates the substrate materials with pyrophoric iron or other materials resulting in materials that are “tunable” with respect to its pyrophoric output as determined by its temperature, rise time sustenance etc through selective variation of particle size, morphology, and diluents or reactive materials.Type: GrantFiled: April 21, 2011Date of Patent: January 7, 2014Assignees: The United States of America as represented by the Secretary of the Army, South Dakota Board of RegentsInventors: Christopher Haines, Deepak Kapoor, Jan Puszynski, Rajesh Shende, Zac Doorenbos, Lori Groven
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Patent number: 8512490Abstract: The invention provides methods for making homogeneous metal oxide nanoenergetic composites. A method of the invention forms a metal oxide nanostructure via a sol-gel process with surfactant templating. Metal nanoparticles are introduced into the metal oxide nanostructure via wet impregnation.Type: GrantFiled: September 7, 2012Date of Patent: August 20, 2013Assignee: The Curators of the University of MissouriInventors: Shubhra Gangopadhyay, Daniel Tappmeyer, Andrey Bezmelnystin, Rajagopalan Thiruvengadathan, Rajesh Shende, Bhushan Mehendale, Steve Apperson, Sved Barizuddin, Keshab Gangopadhyay
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Publication number: 20130000800Abstract: The invention provides methods for making homogeneous metal oxide nanoenergetic composites. A method of the invention forms a metal oxide nanostructure via a sol-gel process with surfactant templating. Metal nanoparticles are introduced into the metal oxide nanostructure via wet impregnation.Type: ApplicationFiled: September 7, 2012Publication date: January 3, 2013Applicant: The Curators of the University of MissouriInventors: Shubhra Gangopadhyay, Daniel Tappmeyer, Andrey Bezmelnystin, Rajagopalan Thiruvengadathan, Rajesh Shende, Bhushan Mehendale, Steven Apperson, Syed Barizuddin, Keshab Gangopadhyay
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Patent number: 8293040Abstract: The invention provides homogeneous mesoporous metal oxide nanoenergetic composites. A composite of the invention has a regular and uniform nanostructure of metal oxide, which is structured by a surfactant. Metal fuel nanoparticles are homogenously distributed through the regular and uniform nanostructure. The invention further provides methods for making homogeneous metal oxide nanoenergetic composites. A method of the invention forms a metal oxide nanostructure via a sol-gel process with surfactant templating. Metal nanoparticles into the metal oxide nanostructure via wet impregnation.Type: GrantFiled: December 11, 2007Date of Patent: October 23, 2012Assignee: The Curators of the University of MissouriInventors: Shubhra Gangopadhyay, Daniel Tappmeyer, Andrey Bezmelnytsin, Rajagopalan Thiruvengadathan, Rajesh Shende, Bhusban Mehendale, Steven Apperson, Syed Barizuddin, Keshab Gangopadhyay
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Patent number: 8066831Abstract: A method of generating power uses a nanoenergetic material. The nanoenergetic material comprising thermite is obtained and deposited on a substrate. An igniter is placed on the nanoenergetic material. When power is desired, the nanoenergetic material is ignited. A transducer receives thermal, sonic, magnetic, optic and/or mechanical energy from combustion of the nanoenergetic material and converts it into electrical energy. Preferably, the transducer is a thermoelectric, piezoelectric or magneto device. Preferably, multiple transducers are integrated in one power generators to maximize the power from nanoenergetic thermites.Type: GrantFiled: October 27, 2006Date of Patent: November 29, 2011Assignee: The Curators of the University of MissouriInventors: Shubhra Gangopadhyay, Steven Apperson, Keshab Gangopadhyay, Andrey Bezmelnitsyn, Rajagopalan Thiruvengadathan, Michael Kraus, Rajesh Shende, Maruf Hossain, Senthil Subramanian, Shantanu Bhattacharya, Yuangang Gao
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Patent number: 7927437Abstract: A structured, self-assembled nanoenergetic material is disclosed that includes a nanostructure comprising at least one of the group consisting of a fuel and an oxidizer and a plurality of substantially spherical nanoparticles comprising at least the other of the group consisting of a fuel and an oxidizer. The spherical particles are arranged around the exterior surface area of said nanorod. This structured particle assures that the oxidizer and the fuel have a high interfacial surface area between them. Preferably, the nanostructure is at least one of a nanorod, nanowire and a nanowell, and the second shaped nanoparticle is a nanosphere.Type: GrantFiled: October 28, 2005Date of Patent: April 19, 2011Assignee: The Curators of the University of MissouriInventors: Shubhra Gangopadhyay, Rajesh Shende, Senthil Subramanian, Keshab Gangopadhyay, Shameem Hasan
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Patent number: 7879721Abstract: The present process for rapidly heating and cooling a target material without damaging the substrate upon which it has been deposited. More specifically, target material is coated onto a first substrate. A self-propagating nanoenergetic material is selected that combusts at temperatures sufficient to change the target material and creates a flame front that propagates sufficiently quickly that the first substrate is not substantially heated. The nanoenergetic material is deposited on the target material, such that the target material and the nanoenergetic material is sandwiched between the substrate and the target material. The nanoenergetic material is ignited and the flame front of the nanoenergetic material is allowed to propagate over the second substrate and change the target material.Type: GrantFiled: October 27, 2006Date of Patent: February 1, 2011Assignee: The Curators of the University of MissouriInventors: Shubhra Gangopadhyay, Maruf Hossain, Keshab Gangopadhyay, Rajesh Shende
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Publication number: 20100279102Abstract: The invention provides homogeneous mesoporous metal oxide nanoenergetic composites. A composite of the invention has a regular and uniform nanostructure of metal oxide, which is structured by a surfactant. Metal fuel nanoparticles are homogenously distributed through the regular and uniform nanostructure. The invention further provides methods for making homogeneous metal oxide nanoenergetic composites. A method of the invention forms a metal oxide nanostructure via a sol-gel process with surfactant templating. Metal nanoparticles into the metal oxide nanostructure via wet impregnation.Type: ApplicationFiled: December 11, 2007Publication date: November 4, 2010Inventors: Shubhra Gangopadhyay, Daniel Tappmeyer, Andrey Bezmelnytsin, Rajagopalan Thiruvengadathan, Rajesh Shende, Bhusban Mehendale, Steven Apperson, Syed Barizuddin, Keshab Gangopadhyay
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Patent number: 7608478Abstract: A chip for igniting nanoenergetic materials, includes a substrate, an igniter positioned on the substrate and the nanoenergetic material arranged in a linear pattern positioned on said substrate. A method of making a chip for igniting nanoenergetic materials includes providing a substrate, forming an igniter on the substrate and coating the substrate with a polymer layer. A pattern of nanoenergetic material comprising a fuel and an oxidizer is formed on the substrate. The nanoenergetic material is ignited by the igniter by supplying power to the leads attached to the heater film.Type: GrantFiled: October 28, 2005Date of Patent: October 27, 2009Assignee: The Curators of the University of MissouriInventors: Shubhra Gangopadhyay, Rajesh Shende, Steve Apperson, Shantanu Bhattacharya, Yuanfang Gao
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Publication number: 20090221135Abstract: The present process for rapidly heating and cooling a target material without damaging the substrate upon which it has been deposited. More specifically, target material is coated onto a first substrate. A self-propagating nanoenergetic material is selected that combusts at temperatures sufficient to change the target material and creates a flame front that propagates sufficiently quickly that the first substrate is not substantially heated. The nanoenergetic material is deposited on the target material, such that the target material and the nanoenergetic material is sandwiched between the substrate and the target material. The nanoenergetic material is ignited and the flame front of the nanoenergetic material is allowed to propagate over the second substrate and change the target material.Type: ApplicationFiled: October 27, 2006Publication date: September 3, 2009Inventors: Shubhra Gangopadhyay, Maruf Hossain, Keshab Gangopadhyay, Rajesh Shende
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Publication number: 20090152873Abstract: A method of generating power uses a nanoenergetic material. The nanoenergetic material comprising thermite is obtained and deposited on a substrate. An igniter is placed on the nanoenergetic material. When power is desired, the nanoenergetic material is ignited. A transducer receives thermal, sonic, magnetic, optic and/or mechanical energy from combustion of the nanoenergetic material and converts it into electrical energy. Preferably, the transducer is a thermoelectric, piezoelectric or magneto device. Preferably, multiple transducers are integrated in one power generators to maximize the power from nanoenergetic thermites.Type: ApplicationFiled: October 27, 2006Publication date: June 18, 2009Inventors: Shubhra Gangopadhyay, Steven Apperson, Keshab Gangopadhyay, Andrey Bezmelnitsyn, Rajagopalan Thiruvengadathan, Michael Kraus, Rajesh Shende, Maruf Hossain, Senthil Subramanian, Shantanu Bhattacharya, Yuangang Gao
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Publication number: 20070099335Abstract: A chip for igniting nanoenergetic materials, includes a substrate, an igniter positioned on the substrate and the nanoenergetic material arranged in a linear pattern positioned on said substrate. A method of making a chip for igniting nanoenergetic materials includes providing a substrate, forming an igniter on the substrate and coating the substrate with a polymer layer. A pattern of nanoenergetic material comprising a fuel and an oxidizer is formed on the substrate. The nanoenergetic material is ignited by the igniter by supplying power to the leads attached to the heater film.Type: ApplicationFiled: October 28, 2005Publication date: May 3, 2007Inventors: Shubhra Gangopadhyay, Rajesh Shende, Steve Apperson, Shantanu Bhattacharya, Yuanfang Gao
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Publication number: 20070095445Abstract: A structured, self-assembled nanoenergetic material is disclosed that includes a nanostructure comprising at least one of the group consisting of a fuel and an oxidizer and a plurality of substantially spherical nanoparticles comprising at least the other of the group consisting of a fuel and an oxidizer. The spherical particles are arranged around the exterior surface area of said nanorod. This structured particle assures that the oxidizer and the fuel have a high interfacial surface area between them. Preferably, the nanostructure is at least one of a nanorod, nanowire and a nanowell, and the second shaped nanoparticle is a nanosphere.Type: ApplicationFiled: October 28, 2005Publication date: May 3, 2007Inventors: Shubhra Gangopadhyay, Rajesh Shende, Senthil Subramanian, Keshab Gangopadhyay, Shameem Hasan
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Publication number: 20060165615Abstract: The present invention relates to a non-oxidative approach for removing or reducing stains, which is based on reactive modification and complexation of porphyrins. This approach was found to be suitable for removing stains from hydroxyapatite, and the whiteness that was achieved using this formulation was found to be superior as compared to the whiteness obtained by using an oxidizing solution containing 3% hydrogen peroxide.Type: ApplicationFiled: November 22, 2005Publication date: July 27, 2006Inventors: Rajesh Shende, Stephen Lombardo