Patents by Inventor Ahmed Shuja
Ahmed Shuja 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: 11925901Abstract: A system for separating a solvent includes a first mixing tank comprising a waste solvent feed and a reactant feed; a first filter comprising a nanofiltration membrane; a distillation column or an evaporator; a condenser or cooler; and a pervaporation membrane. A method for separating a solvent includes mixing a waste solvent with a reactant to cause precipitation or complexing and forming a mixture; filtering the mixture using a nanofiltration membrane and forming a permeate; distilling or evaporating the permeate to form a concentrated solvent; condensing or cooling the concentrated solvent to below a boiling point of solvents in the concentrated solvent; and filtering the concentrated solvent using pervaporation to form a purified solvent. The system and method may be used to separate and purify a solvent without creating thermal degradation products.Type: GrantFiled: August 15, 2023Date of Patent: March 12, 2024Assignees: Donaldson Company, Inc., Ecosce LLCInventors: Matthew P. Goertz, Matthew S. Whitten, Ahmed Shuja, Shawn McLean
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Publication number: 20230390703Abstract: A system for separating a solvent includes a first mixing tank comprising a waste solvent feed and a reactant feed; a first filter comprising a nanofiltration membrane; a distillation column or an evaporator; a condenser or cooler; and a pervaporation membrane. A method for separating a solvent includes mixing a waste solvent with a reactant to cause precipitation or complexing and forming a mixture; filtering the mixture using a nanofiltration membrane and forming a permeate; distilling or evaporating the permeate to form a concentrated solvent; condensing or cooling the concentrated solvent to below a boiling point of solvents in the concentrated solvent; and filtering the concentrated solvent using pervaporation to form a purified solvent. The system and method may be used to separate and purify a solvent without creating thermal degradation products.Type: ApplicationFiled: August 15, 2023Publication date: December 7, 2023Inventors: Matthew P. Goertz, Matthew S. Whitten, Ahmed Shuja, Shawn McLean
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Publication number: 20230347291Abstract: A system for separating a solvent includes a first mixing tank comprising a waste solvent feed and a reactant feed; a first filter comprising a nanofiltration membrane; a distillation column or an evaporator; a condenser or cooler; and a pervaporation membrane. A method for separating a solvent includes mixing a waste solvent with a reactant to cause precipitation or complexing and forming a mixture; filtering the mixture using a nanofiltration membrane and forming a permeate; distilling or evaporating the permeate to form a concentrated solvent; condensing or cooling the concentrated solvent to below a boiling point of solvents in the concentrated solvent; and filtering the concentrated solvent using pervaporation to form a purified solvent. The system and method may be used to separate and purify a solvent without creating thermal degradation products.Type: ApplicationFiled: March 30, 2023Publication date: November 2, 2023Inventors: Matthew P. Goertz, Matthew S. Whitten, Ahmed Shuja, Shawn McLean
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Patent number: 9981203Abstract: The present method applies Pulsed electric fields adding additional control variables for the extraction of target organic compounds from plant material. A current method of extraction of target Cannabaceae plants during processing provides methods to accelerate drying and extraction of these oil rich plants where the pre-removal of water is beneficial aiding in decreased process times. The methods include applying electric fields to the plant material to accelerate the dehydration, and the extraction of target organic compounds.Type: GrantFiled: October 10, 2017Date of Patent: May 29, 2018Inventor: Ahmed Shuja
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Publication number: 20180099236Abstract: The present method applies Pulsed electric fields adding additional control variables for the extraction of target organic compounds from plant material. A current method of extraction of target Cannabaceae plants during processing provides methods to accelerate drying and extraction of these oil rich plants where the pre-removal of water is beneficial aiding in decreased process times. The methods include applying electric fields to the plant material to accelerate the dehydration, and the extraction of target organic compounds.Type: ApplicationFiled: October 10, 2017Publication date: April 12, 2018Inventor: Ahmed Shuja
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Patent number: 8378559Abstract: The disclosed system includes a two-phase cooling apparatus configured for cooling an array of LED dies.Type: GrantFiled: August 20, 2010Date of Patent: February 19, 2013Assignee: Progressive Cooling Solutions, Inc.Inventors: Ahmed Shuja, Tom Griffin, Praveen Medis, Phil Craine
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Publication number: 20130010464Abstract: A high intensity lamp is described herein. The lamp comprises a LED array emitting a light and a two-phase cooling apparatus. The LED array includes a plurality of LEDs. The LEDs are arranged in close proximity so that a luminous emittance from a emitter area of the LED array is at least 1000 lumens per square centimeter. The two-phase cooling apparatus is thermally coupled to the LED array.Type: ApplicationFiled: March 14, 2012Publication date: January 10, 2013Applicant: BritePointe, Inc.Inventors: Ahmed Shuja, Tom Griffin, Ron Van Thiel, Phil Craine, Praveen Medis
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Publication number: 20120205706Abstract: System, method, and apparatus for two phase cooling in light-emitting devices are disclosed. In one aspect of the present disclosure, an apparatus includes a light-emitting device and a two-phase cooling apparatus coupled to the light-emitting device. The coupling of the two-phase cooling apparatus and the light-emitting device is operatively configured such that thermal coupling between the light-emitting device and the two-phase cooling apparatus enables, when, in operation, heat generated from the light-emitting device to be absorbed by a substance of a first phase in the two-phase cooling apparatus to convert the substance to a second phase.Type: ApplicationFiled: April 23, 2012Publication date: August 16, 2012Applicant: BritePointe, Inc.Inventor: Ahmed Shuja
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Patent number: 8188595Abstract: System, method, and apparatus for two phase cooling in light-emitting devices are disclosed. In one aspect of the present disclosure, an apparatus includes a light-emitting device and a two-phase cooling apparatus coupled to the light-emitting device. The coupling of the two-phase cooling apparatus and the light-emitting device is operatively configured such that thermal coupling between the light-emitting device and the two-phase cooling apparatus enables, when, in operation, heat generated from the light-emitting device to be absorbed by a substance of a first phase in the two-phase cooling apparatus to convert the substance to a second phase.Type: GrantFiled: October 24, 2008Date of Patent: May 29, 2012Assignee: Progressive Cooling Solutions, Inc.Inventor: Ahmed Shuja
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Publication number: 20110043092Abstract: The disclosed system includes a two-phase cooling apparatus configured for cooling an array of LED dies.Type: ApplicationFiled: August 20, 2010Publication date: February 24, 2011Applicant: Progressive Cooling Solutions, Inc.Inventors: Ahmed Shuja, Tom Griffin, Praveen Medis, Phil Craine
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Publication number: 20100132404Abstract: Bonds and method for forming bonds for a two-phase cooling apparatus are disclosed. In one aspect of the present disclosure, the two-phase cooling apparatus includes an evaporator. One embodiment of the evaporator includes, a first layer having porous regions and non-porous regions, the porous regions having a plurality of through-holes extending through the first layer, a cap structure formed such that when disposed over the first layer, at least a portion of the plurality of through-holes are unobstructed to liquid or vapor flow, a bonding layer formed between the first layer and the cap structure, the bonding layer in contact with at least a portion of the non-porous regions of the first layer, the bonding layer comprising a bond.Type: ApplicationFiled: December 3, 2008Publication date: June 3, 2010Applicant: Progressive Cooling Solutions, Inc.Inventor: Ahmed Shuja
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Patent number: 7723760Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 w/cm2).Type: GrantFiled: October 31, 2007Date of Patent: May 25, 2010Assignee: University of CincinnatiInventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
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Patent number: 7723845Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 w/cm2).Type: GrantFiled: October 31, 2007Date of Patent: May 25, 2010Assignee: University of CincinnatiInventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
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Patent number: 7705342Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 W/cm2).Type: GrantFiled: September 8, 2006Date of Patent: April 27, 2010Assignee: University of CincinnatiInventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
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Patent number: 7692926Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotropic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 w/cm2).Type: GrantFiled: October 31, 2007Date of Patent: April 6, 2010Assignee: Progressive Cooling Solutions, Inc.Inventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
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Publication number: 20100038660Abstract: System, method, and apparatus for two phase cooling in light-emitting devices are disclosed. In one aspect of the present disclosure, an apparatus includes a light-emitting device and a two-phase cooling apparatus coupled to the light-emitting device. The coupling of the two-phase cooling apparatus and the light-emitting device is operatively configured such that thermal coupling between the light-emitting device and the two-phase cooling apparatus enables, when, in operation, heat generated from the light-emitting device to be absorbed by a substance of a first phase in the two-phase cooling apparatus to convert the substance to a second phase.Type: ApplicationFiled: October 24, 2008Publication date: February 18, 2010Applicant: Progressive Cooling Solutions, Inc.Inventor: Ahmed Shuja
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Publication number: 20080128898Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotropic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 w/cm2).Type: ApplicationFiled: October 31, 2007Publication date: June 5, 2008Inventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
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Publication number: 20080115913Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60w/cm2).Type: ApplicationFiled: October 31, 2007Publication date: May 22, 2008Inventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
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Publication number: 20080115912Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 w/cm2).Type: ApplicationFiled: October 31, 2007Publication date: May 22, 2008Inventors: H. Thurman HENDERSON, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
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Patent number: D691749Type: GrantFiled: January 4, 2012Date of Patent: October 15, 2013Assignee: Britepointe, Inc.Inventors: Ahmed Shuja, Ron van Thiel, Tom Griffin, Praveen Medis, Phil Craine