Patents Assigned to Materials Modification, Inc.
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Patent number: 9871270Abstract: Disclosure of functionalized ionic liquids. Use of disclosed ionic liquids as solvent for carbon dioxide. Use of disclosed ionic liquids as flame retardant. Use of disclosed ionic liquids for coating fabric to obtain flame retardant fabric.Type: GrantFiled: February 27, 2017Date of Patent: January 16, 2018Assignee: MATERIALS MODIFICATION, INC.Inventors: Humcha Krishnamurthy Hariprakasha, Krishnaswamy Kasthuri Rangan, Tirumalai Srinivas Sudarshan
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Patent number: 9707251Abstract: Two siloxane-based mixtures combine to form a soft or semi-solid matrix for forming an artificial blockage to control bleeding, particularly moderate to severe bleeding. The first component includes a homogeneous mixture or solution that includes a polymeric matrix, a surfactant, filler(s) and metal compound(s). The second component includes a homogeneous mixture or solution that includes a polymer(s), a filler(s), a surfactant, and hydrogen peroxide. The combination of the two components is carried out with adequate mixing using mechanical and micro-kinetic mixing mechanisms and can be performed in a field-ready delivery device.Type: GrantFiled: August 14, 2012Date of Patent: July 18, 2017Assignee: MATERIALS MODIFICATION, INC.Inventors: Kausik Mukhopadhyay, Krishnaswamy Kasthuri Rangan, Tirumalai Srinivas Sudarshan
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Patent number: 9475263Abstract: A protective fabric or material includes a base material and at least one inorganic filler selected from the group consisting of a chemical decontamination agent, a biological decontamination agent, an electromagnetic radiation shielding agent, an antimicrobial agent, a self-decontaminating agent, a decontamination catalyst, a carbon dioxide absorbing agent, and a combination thereof.Type: GrantFiled: November 2, 2010Date of Patent: October 25, 2016Assignee: MATERIALS MODIFICATION, INC.Inventors: Krishnaswamy Kasthuri Rangan, Tirumalai Srinivas Sudarshan
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Publication number: 20140363393Abstract: A composition for in situ formation and/or expansion of a polymer-based hemostatic agent to control bleeding includes a suitable amount of a polymer or polymer-forming component, hydrogen peroxide or chemical(s) capable of forming hydrogen peroxide, or a combination of both, and a decomposing agent for hydrogen peroxide. The decomposing agent includes an endogenously or exogenously supplied catalyst (other than catalase), or both, and/or the polymer or polymer-forming component.Type: ApplicationFiled: August 25, 2014Publication date: December 11, 2014Applicant: MATERIALS MODIFICATION, INC.Inventors: Joseph G. MONTES, Krishnaswamy Kasthuri RANGAN, Ramachandran RADHAKRISHNAN, Tirumalai Srinivas SUDARSHAN
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Patent number: 8852558Abstract: A composition for in situ formation and/or expansion of a polymer-based hemostatic agent to control bleeding includes a suitable amount of a polymer or polymer-forming component, hydrogen peroxide or chemical(s) capable of forming hydrogen peroxide, or a combination of both, and a decomposing agent for hydrogen peroxide. The decomposing agent includes an endogenously or exogenously supplied catalyst (other than catalase), or both, and/or the polymer or polymer-forming component.Type: GrantFiled: December 16, 2008Date of Patent: October 7, 2014Assignee: Materials Modification, Inc.Inventors: Joseph G. Montes, Krishnaswamy Kasthuri Rangan, Ramachandran Radhakrishnan, Tirumalai Srinivas Sudarshan
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Patent number: 8790754Abstract: A method of preparing a metal nitride and/or metal oxynitride particulate material includes heating a stoichiometric mixture of a metal compound and urea at a temperature of about 400-1000° C. for a predetermined time period in the presence of argon, nitrogen, or both. The particulate material produced includes nanoparticles, nanotubes, microparticles, powder, or a combination thereof.Type: GrantFiled: February 5, 2009Date of Patent: July 29, 2014Assignee: Materials Modification, Inc.Inventors: Krishnaswamy Kasthuri Rangan, Cheryl Renee Verdecchio, Ramachandran Radhakrishnan, Tirumalai Srinivas Sudarshan
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Publication number: 20120308509Abstract: Two siloxane-based mixtures combine to form a soft or semi-solid matrix for forming an artificial blockage to control bleeding, particularly moderate to severe bleeding. The first component includes a homogeneous mixture or solution that includes a polymeric matrix, a surfactant, filler(s) and metal compound(s). The second component includes a homogeneous mixture or solution that includes a polymer(s), a filler(s), a surfactant, and hydrogen peroxide. The combination of the two components is carried out with adequate mixing using mechanical and micro-kinetic mixing mechanisms and can be performed in a field-ready delivery device.Type: ApplicationFiled: August 14, 2012Publication date: December 6, 2012Applicant: MATERIALS MODIFICATION, INC.Inventors: Kausik MUKHOPADHYAY, Krishnaswamy Kasthuri RANGAN, Tirumalai Srinivas SUDARSHAN
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Patent number: 7670623Abstract: A hemostatic composition includes a carrier medium including a predetermined amount of a particulate material. The particulate material is comprised of core particles with a coating. The core particles have an average particle size of about 5 nm to 10 ?m, and the coating is one of gold, silica, silver, platinum, steel, cobalt, carbon, a polymer, or a combination thereof.Type: GrantFiled: May 31, 2002Date of Patent: March 2, 2010Assignee: Materials Modification, Inc.Inventors: Sanjay Kotha, Tirumalai S. Sudarshan
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Publication number: 20090232876Abstract: A composition for in situ formation of an artificial blockage to control bleeding includes a suitable amount of a polymer-forming component, a suitable amount of a crosslinking agent, hydrogen peroxide, and a decomposing agent for hydrogen peroxide. The decomposing agent includes exogenous or endogenous catalase, or both.Type: ApplicationFiled: March 11, 2008Publication date: September 17, 2009Applicant: MATERIALS MODIFICATION, INC.Inventors: Joseph G. Montes, Krishnaswamy Kasthuri Rangan, Ramachandran Radhakrishnan, Tirumalai Srinivas Sudarshan
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Patent number: 7560160Abstract: A multifunctional particulate material, fluid, or composition includes a predetermined amount of core particles with a plurality of coatings. The core particles have an average particle size of about 1 nm to 500 ?m. The particulate material, fluid, or composition is capable of exhibiting one or more properties, such as magnetic, thermal, optical, electrical, biological, chemical, lubrication, and rheological.Type: GrantFiled: November 25, 2002Date of Patent: July 14, 2009Assignee: Materials Modification, Inc.Inventors: Tirumalai S. Sudarshan, Sanjay Kotha, Ramachandran Radhakrishnan
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Patent number: 7448389Abstract: A method and kit for inducing hypoxia in tumors includes impeding oxygen supply to non-hypoxic cells in a subject in need thereof by using a magnetic fluid.Type: GrantFiled: October 10, 2003Date of Patent: November 11, 2008Assignee: Materials Modification, Inc.Inventors: Sanjay Kotha, Tirumalai S. Sudarshan
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Patent number: 7200956Abstract: A cushioning device for a footwear or shoe includes a chamber with a magnetically responsive fluid therein for absorbing and/or dampening vibrations and/or shocks. A magnetic member, such as an electromagnet, is provided for applying a magnetic field to the magnetic fluid to thereby vary the viscosity thereof.Type: GrantFiled: July 23, 2003Date of Patent: April 10, 2007Assignee: Materials Modification, Inc.Inventors: Sanjay Kotha, Tirumalai S. Sudarshan
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Patent number: 7007972Abstract: An airbag inflation apparatus includes a chamber for generating a gas to inflate an airbag. A valve, including a magnetic fluid and a source of magnetic field, preferably an electromagnet, is associated with the chamber for regulating the flow of the gas into the airbag. A sensor determines and feeds occupant information to the sensor.Type: GrantFiled: March 10, 2003Date of Patent: March 7, 2006Assignee: Materials Modification, Inc.Inventors: Ramachandran Radhakrishnan, Sanjay Kotha, Tirumalai S. Sudarshan
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Patent number: 6982501Abstract: A device for generating power includes a fluid including magnetic particles. A source magnetizes the fluid thereby inducing rotations in the magnetic particles for creating a magnetic flux. The rotations of the magnetic particles induce an electromagnetic force in a coil associated with the fluid.Type: GrantFiled: May 19, 2003Date of Patent: January 3, 2006Assignee: Materials Modification, Inc.Inventors: Sanjay Kotha, Tirumalai S. Sudarshan, Ramachandran Radhakrishnan
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Publication number: 20030172772Abstract: The present invention relates to the production of ultrafine powders using a microwave plasma apparatus and chemical synthesis technique. Microwaves generated by a magnetron (1) are passed through waveguides (2) before they arrive at the head of a plasmatron (3). These high energy microwaves ionize a plasma gas, thus releasing large amounts of energy. The energy thus released is utilized to initiate and sustain chemical reactions between the desired elements being pumped in a spiral pattern into the plasmatron (3). The reaction products are quenched rapidly in a reactor column (4) into ultrafine powders.Type: ApplicationFiled: March 11, 2003Publication date: September 18, 2003Applicant: Materials Modification, Inc.Inventors: Krupashankara M. Sethuram, Raja Kalyanaraman
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Publication number: 20020112794Abstract: The present invention relates to the production of ultrafine powders using a microwave plasma apparatus and chemical synthesis technique. Microwaves generated by a magnetron (1) are passed through waveguides (2) before they arrive at the head of a plasmatron (3). These high energy microwaves ionize a plasma gas, thus releasing large amounts of energy. The energy thus released is utilized to initiate and sustain chemical reactions between the desired elements being pumped in a spiral pattern into the plasmatron (3). The reaction products are quenched rapidly in a reactor column (4) into ultrafine powders.Type: ApplicationFiled: April 4, 2002Publication date: August 22, 2002Applicant: Materials Modification, Inc.Inventors: Krupashankara M. Sethuram, Raja Kalyanaraman
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Patent number: 6309591Abstract: An apparatus for bonding a particle material to near theoretical density, includes a chamber, a punch and die assembly for supporting a particle material, plungers for applying shear and/or axial pressures, and a power supply for applying a current. In the first stage, a pulsed current of about 1 to 20,000 amps., is applied to the particle material for a predetermined time period, and substantially simultaneously therewith, a shear force of about 5-50 MPa is applied. In the second stage, an axial pressure of about less than 1 to 2,000 MPa is applied to the particle material for a predetermined time period, and substantially simultaneously therewith, a steady current of about 1 to 20,000 amps. is applied. The apparatus may be used to bond metallic, ceramic, intermetallic and composite materials to near-net shape, directly from precursors or elemental particle material without the need for synthesizing the material.Type: GrantFiled: October 5, 1999Date of Patent: October 30, 2001Assignee: Materials Modification, Inc.Inventors: Sang H. Yoo, Krupashankara M. Sethuram, Tirumalai S. Sudarshan
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Patent number: 6270718Abstract: A method of bonding a particle material to near theoretical density, includes placing a particle material in a die. In the first stage, a pulsed current of about 1 to 20,000 amps., is applied to the particle material for a predetermined time period, and substantially simultaneously therewith, a shear force of about 5-50 MPa is applied. In the second stage, an axial pressure of about less than 1 to 2,000 MPa is applied to the particle material for a predetermined time period, and substantially simultaneously therewith, a steady current of about 1 to 20,000 amps. is applied. The method can be used to bond metallic, ceramic, intermetallic and composite materials to near-net shape, directly from precursors or elemental particle material without the need for synthesizing the material. The method may also be applied to perform combustion synthesis of a reactive material, followed by consolidation or joining to near-net shaped articles or parts.Type: GrantFiled: October 5, 1999Date of Patent: August 7, 2001Assignee: Materials Modification, Inc.Inventors: Sang H. Yoo, Krupashankara M. Sethuram, Tirumalai S. Sudarshan
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Patent number: 6187087Abstract: A method of bonding a particle material to near theoretical density, includes placing a particle material in a die. In the first stage, a pulsed current of about 1 to 20,000 amps., is applied to the particle material for a predetermined time period, and substantially simultaneously therewith, a shear force of about 5-50 MPa is applied. In the second stage, an axial pressure of about less than 1 to 2,000 MPa is applied to the particle material for a predetermined time period, and substantially simultaneously therewith, a steady current of about 1 to 20,000 amps. is applied. The method can be used to bond metallic, ceramic, intermetallic and composite materials to near-net shape, directly from precursors or elemental particle material without the need for synthesizing the material. The method may also be applied to perform combustion synthesis of a reactive material, followed by consolidation or joining to near-net shaped articles or parts.Type: GrantFiled: October 5, 1999Date of Patent: February 13, 2001Assignee: Materials Modification, Inc.Inventors: Sang H. Yoo, Krupashankara M. Sethuram, Tirumalai S. Sudarshan
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Patent number: 6183690Abstract: A method of bonding a particle material to near theoretical density, includes placing a particle material in a die. In the first stage, a pulsed current of about 1 to 20,000 amps., is applied to the particle material for a predetermined time period, and substantially simultaneously therewith, a shear force of about 5-50 MPa is applied. In the second stage, an axial pressure of about less than 1 to 2,000 MPa is applied to the particle material for a predetermined time period, and substantially simultaneously therewith, a steady current of about 1 to 20,000 amps. is applied. The method can be used to bond metallic, ceramic, intermetallic and composite materials to near-net shape, directly from precursors or elemental particle material without the need for synthesizing the material. The method may also be applied to perform combustion synthesis of a reactive material, followed by consolidation or joining to near-net shaped articles or parts.Type: GrantFiled: October 5, 1999Date of Patent: February 6, 2001Assignee: Materials Modification, Inc.Inventors: Sang H. Yoo, Krupashankara M. Sethuram, Tirumalai S. Sudarshan