Patents by Inventor Santosh Y. Limaye
Santosh Y. Limaye 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: 10166508Abstract: In accordance with the present invention, there are provided simplified systems and methods for deactivating, removing, or reducing the levels of reactive component(s) from vapor phase fluids prior to introduction thereof into fuel storage tanks. The simple apparatus described herein can be utilized to replace complex systems on the market. Simply stated, in one embodiment of the invention, the vapor phase fluid contemplated for introduction into the fuel storage tank is passed through a reaction zone (e.g., a catalytic bed) operated at appropriate temperatures to allow the reaction between free reactive components therein (e.g., oxygen and hydrogen or other fuel vapor), thereby deactivating reactive component(s) in the gas phase.Type: GrantFiled: August 20, 2008Date of Patent: January 1, 2019Assignee: Phyre Technologies, Inc.Inventors: Santosh Y. Limaye, Stuart Robertson, Donald Koenig, Wesley Jung
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Patent number: 10155180Abstract: In accordance with the present invention, there are provided systems and methods for contacting two or more fluids, useful, for example for purifying or infusing a fluid (by allowing efficient and/or uniform addition of components to or removal of components from the fluid). The components may be undesirable components to be removed from a fluid, or a desired component or components to be added to the fluid, for example, each of which is referred to herein as “component”. In this regard, the disclosed embodiments provide for the purification or infusion of a fluid by passing a liquid and a fluid through a contacting zone which facilitates intimate mixing of the liquid and the fluid. A differential of partial pressure, activity, fugacity or concentration of the components between the liquid and the fluid facilitates the transfer of the components between the liquid and the fluid in the intimately mixed liquid and fluid.Type: GrantFiled: April 28, 2010Date of Patent: December 18, 2018Assignee: Phyre Technologies, Inc.Inventors: Donald Koenig, Wesley Jung, Santosh Y. Limaye, Stuart Robertson, Stephen Walker
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Publication number: 20120216677Abstract: In accordance with the present invention, there are provided systems and methods for contacting two or more fluids, useful, for example for purifying or infusing a fluid (by allowing efficient and/or uniform addition of components to or removal of components from the fluid). The components may be undesirable components to be removed from a fluid, or a desired component or components to be added to the fluid, for example, each of which is referred to herein as “component”. In this regard, the disclosed embodiments provide for the purification or infusion of a fluid by passing a liquid and a fluid through a contacting zone which facilitates intimate mixing of the liquid and the fluid. A differential of partial pressure, activity, fugacity or concentration of the components between the liquid and the fluid facilitates the transfer of the components between the liquid and the fluid in the intimately mixed liquid and fluid.Type: ApplicationFiled: April 28, 2010Publication date: August 30, 2012Inventors: Donald Koenig, Wesley Jung, Santosh Y. Limaye, Stuart Robertson, Stephen Walker
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Publication number: 20110262309Abstract: In accordance with the present invention, there are provided simplified systems and methods for deactivating, removing, or reducing the levels of reactive component(s) from vapor phase fluids prior to introduction thereof into fuel storage tanks. The simple apparatus described herein can be utilized to replace complex systems on the market. Simply stated, in one embodiment of the invention, the vapor phase fluid contemplated for introduction into the fuel storage tank is passed through a reaction zone (e.g., a catalytic bed) operated at appropriate temperatures to allow the reaction between free reactive components therein (e.g., oxygen and hydrogen or other fuel vapor), thereby deactivating reactive component(s) in the gas phase.Type: ApplicationFiled: August 20, 2008Publication date: October 27, 2011Inventors: Santosh Y. Limaye, Stuart Robertson, Donald Koenig, Wesley Jung
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Patent number: 7942988Abstract: A shaped, flexible fuel and energetic system is presented. The shaped, flexible fuel comprises at least one polymeric binding material and porous silicon particles dispersed throughout the polymeric binding material. The porous silicon particles are prepared from a metallurgical grade silicon powder. The shaped, flexible fuel preferably includes shapes such as: an article, a film, a wire and a tape. The energetic system comprises the shaped, flexible fuel portion used alone or in combination with at least one oxidizer.Type: GrantFiled: May 8, 2008Date of Patent: May 17, 2011Assignee: Vesta Research, Ltd.Inventors: Shanthi Subramanian, Declan Farrell, Santosh Y. Limaye
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Patent number: 7896292Abstract: In accordance with the present invention, there are provided simplified systems and methods for catalytically deactivating, removing, or reducing the levels of reactive component(s) from the vapor phase of fuel storage tanks. The simple apparatus described herein can be utilized to replace complex systems on the market. Simply stated, in one embodiment of the invention, the vapor phase from the fuel tank is passed over a catalytic bed operated at appropriate temperatures to allow the reaction between free oxygen and the fuel vapor by oxidation of the fuel vapor, thus deactivating reactive component(s) in the gas phase.Type: GrantFiled: January 16, 2008Date of Patent: March 1, 2011Assignee: Phyre Technologies, Inc.Inventors: Santosh Y. Limaye, Donald Koenig, Wesley Jung, Stuart Robertson
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Publication number: 20090227034Abstract: In accordance with the present invention, there are provided simplified systems and methods for catalytically deactivating, removing, or reducing the levels of reactive component(s) from the vapor phase of fuel storage tanks. The simple apparatus described herein can be utilized to replace complex systems on the market. Simply stated, in one embodiment of the invention, the vapor phase from the fuel tank is passed over a catalytic bed operated at appropriate temperatures to allow the reaction between free oxygen and the fuel vapor by oxidation of the fuel vapor, thus deactivating reactive component(s) in the gas phase.Type: ApplicationFiled: January 16, 2008Publication date: September 10, 2009Inventors: Santosh Y. Limaye, Donald Koenig, Wesley Jung, Stuart Robertson
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Publication number: 20090209897Abstract: A photoactivated antimicrobial wound dressing comprising a photocatalytic membrane is provided. The photocatalytic membrane comprises a bacterial cellulose hydrogel membrane having photocatalytic particles are immobilized within the membrane and are activated when exposed to light, at which time they react with oxygen-based species forming reactive oxygen species. The reactive oxygen species further react with microbes to kill the microbes.Type: ApplicationFiled: February 20, 2008Publication date: August 20, 2009Applicants: LOTEC, INC. DBA VESTA SCIENCES, INC., UT-BATTELLE, LLCInventors: Santosh Y. Limaye, Shanthi Subramanian, Barbara R. Evans, Hugh M. O'Neill
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Patent number: 7569202Abstract: Silicon nanosponge particles prepared from a metallurgical grade silicon powder having an initial particle size ranging from about 1 micron to about 4 microns is presented. Each silicon nanosponge particle has a structure comprising a plurality of nanocrystals with pores disposed between the nanocrystals and throughout the entire nanosponge particle.Type: GrantFiled: May 5, 2006Date of Patent: August 4, 2009Assignee: Vesta Research, Ltd.Inventors: Declan Farrell, Santosh Y Limaye, Shanthi Subramanian
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Patent number: 7560085Abstract: Porous silicon particles are prepared from a metallurgical grade silicon powder having an initial particle size greater than about 1 micron is presented. Each porous silicon particle comprises a solid core surrounded by a porous silicon layer having a thickness greater than about 0.5 microns.Type: GrantFiled: May 5, 2006Date of Patent: July 14, 2009Assignee: Vesta Research, Ltd.Inventors: Declan Farrell, Santosh Y Limaye, Shanthi Subramanian
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Patent number: 7541015Abstract: A process for producing a silicon nitride compound is presented. A starting solution comprising fluorosilicic acid is provided. The starting solution is derived from a silicon, etching process wherein silicon is etched with a solution comprising hydrofluoric acid and where silicon powder has been removed. The starting solution is heated to yield a vapor solution comprising silicon tetrafluoride, hydrogen fluoride, and water. The hydrogen fluoride is separated from the vapor solution wherein a pure stream of silicon tetrafluoride and water vapor remain. The silicon tetrafluoride and water vapor are hydrolyzed to yield a concentrated fluorosilicic acid solution. The fluorosilicic acid is reacted with a base to yield a fluorosilicic salt. The fluorosilicic salt is heated to yield anhydrous silicon tetrafluoride. The anhydrous silicon tetrafluoride is reacted with a metal hydride to yield a monosilane. The monosilane is reacted to form a silicon compound and a silicon nitride compound.Type: GrantFiled: November 21, 2006Date of Patent: June 2, 2009Assignee: Vesta Research, Ltd.Inventors: Declan Farrell, Santosh Y. Limaye, Shanthi Subramanian
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Publication number: 20090101251Abstract: A shaped, flexible fuel and energetic system is presented. The shaped, flexible fuel comprises at least one polymeric binding material and porous silicon particles dispersed throughout the polymeric binding material. The porous silicon particles are prepared from a metallurgical grade silicon powder. The shaped, flexible fuel preferably includes shapes such as: an article, a film, a wire and a tape. The energetic system comprises the shaped, flexible fuel portion used alone or in combination with at least one oxidizer.Type: ApplicationFiled: May 8, 2008Publication date: April 23, 2009Applicant: VESTA RESEARCH, LTD.Inventors: Shanthi Subramanian, Declan Farrell, Santosh Y. Limaye
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Publication number: 20090022647Abstract: A process for producing a silicon nitride compound is presented. A starting solution comprising fluorosilicic acid is provided. The starting solution is derived from a silicon, etching process wherein silicon is etched with a solution comprising hydrofluoric acid and where silicon powder has been removed. The starting solution is heated to yield a vapor solution comprising silicon tetrafluoride, hydrogen fluoride, and water. The hydrogen fluoride is separated from the vapor solution wherein a pure stream of silicon tetrafluoride and water vapor remain. The silicon tetrafluoride and water vapor are hydrolyzed to yield a concentrated fluorosilicic acid solution. The fluorosilicic acid is reacted with a base to yield a fluorosilicic salt. The fluorosilicic salt is heated to yield anhydrous silicon tetrafluoride. The anhydrous silicon tetrafluoride is reacted with a metal hydride to yield a monosilane. The monosilane is reacted to form a silicon compound and a silicon nitride compound.Type: ApplicationFiled: November 21, 2006Publication date: January 22, 2009Inventors: Declan Farrell, Santosh Y. Limaye, Shanthi Subramanian
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Patent number: 5997744Abstract: A fluid separation module is provided. The module comprises a monolithic core having a first set of passages extending from a feed end to a retentate end. The first set of passages has a specific cross-sectional area. A second set of passages are positioned in a non-parallel relationship to the first set of passages for passage of a permeate. Additionally, the fluid separation module has at least one transducer affixed to the monolithic core. The fluid separation module of the present invention may be used for macrofiltration, microfiltration, ultrafiltration, nanofiltration, and reverse osmosis.Type: GrantFiled: December 16, 1997Date of Patent: December 7, 1999Inventor: Santosh Y. Limaye
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Patent number: 5976721Abstract: A chemical cogeneration process for producing chemical products and cogenerating electrical energy is presented. The process comprises the steps of providing a monolithic mass and energy transfer cell. Heating the monolithic mass and energy transfer cell to a temperature ranging from about 25.degree. C. to about 1000.degree. C. Introducing an oxidant into the first set of passages and introducing a fuel into the second set of passages. The chemical products are recovered from the monolithic mass and energy transfer cell and the electric current is recovered through the external electric circuit.Type: GrantFiled: September 15, 1997Date of Patent: November 2, 1999Inventor: Santosh Y. Limaye
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Patent number: 5770326Abstract: A monolithic mass and energy transfer cell is provided. The cell comprises a monolithic ionically conductive core. The core has an outer surface including a first entrance surface and a first exit surface, which is spaced apart from the first entrance surface. A first set of passages are positioned between the first entrance surface and the first exit surface. The outer surface also includes a second entrance surface and a second exit surface, spaced apart from the second entrance surface. A second set of passages are positioned therebetween. The first set of passages are in a non-parallel relationship with the second set of passages. A first porous, electrically conductive coating is disposed within the first set of passages and a second porous, electrically conductive coating is disposed within the second set of passages. An external electric circuit is in electrical contact with the monolithic ionically conductive core.Type: GrantFiled: December 23, 1996Date of Patent: June 23, 1998Inventor: Santosh Y. Limaye
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Patent number: 5488018Abstract: Three families of ceramic compositions having the given formula: .phi..sub.1+X Zr.sub.4 P.sub.6-2X Si.sub.2X O.sub.24, .phi..sub.1+X Zr.sub.4-2X Y.sub.2X P.sub.6 O.sub.24 and .phi..sub.1+X Zr.sub.4-X Y.sub.X P.sub.6-2X Si.sub.X O.sub.24 wherein .phi. is either Strontium or Barium and X has a value from about 0.2 to about 0.8 have been disclosed. Ceramics formed from these compositions exhibit very low, generally near neutral, thermal expansion over a wide range of elevated temperatures.Type: GrantFiled: April 21, 1989Date of Patent: January 30, 1996Inventor: Santosh Y. Limaye
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Patent number: 5151660Abstract: A ceramic bodied sensor having helical metallized electrodes for measuring the capacitance of an oil-water-gas or oil-water mixture flowing through a central bore of the sensor is disclosed. The sensor generally is a hollow cylinder with an inner ceramic layer which is very thin, a thicker outer ceramic layer which forms a strong structural unit, and a pair of isolated metallized electrodes which are generally approximately located between the inner and outer ceramic layers. The inner ceramic layer, outer ceramic layer and metallized electrodes form a dense monolithic ceramic tube. The electrode plates are preferably identical in size and shape and are isolated from one another electrically so that a condenser is formed by the separated plates. The inner ceramic layer is preferably very thin to minimize its capacitance value in comparison to the capacitance value of the water-oil-gas or oil-water mixture flowing through the central bore of the sensor.Type: GrantFiled: September 5, 1990Date of Patent: September 29, 1992Inventors: Kelly R. Powers, Tony G. Curtis, Santosh Y. Limaye, Robert D. Roy
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Patent number: 4801566Abstract: Crystalline solid solutions and diphasic mixtures having a composition of Ca.sub.1-x M.sub.x Zr.sub.4 P.sub.6 O.sub.24, where M is Ba and/or Sr and X is between about 0.25 and 0.75, have been produced which display both low anisotropy and near zero bulk thermal expansion behavior.Type: GrantFiled: March 13, 1987Date of Patent: January 31, 1989Assignee: Pennsylvania State UniversityInventors: Santosh Y. Limaye, Dinesh K. Agrawal, Herbert A. McKinstry, Rustum Roy