Patents by Inventor Khushroo H. Lakdawala
Khushroo H. Lakdawala 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: 11509132Abstract: A system for monitoring performance of an aircraft windshield includes a sensor comprising a sensory contact and an evaluation unit. The sensory contact is in physical contact with one or more components of the windshield, and generates a signal representative of the performance of the component(s) of the windshield. An electrical connector is secured to the surface of the windshield facing the interior of the aircraft. The signal from the sensory contact passes through the connector to the evaluation unit. The evaluation unit acts on the signal to determine the performance of the component(s) of the windshield, wherein the evaluation unit is spaced from and out of physical contact with the windshield and the electrical connector, and is in electrical contact with the electrical connector.Type: GrantFiled: June 21, 2019Date of Patent: November 22, 2022Assignee: PPG Industries Ohio, Inc.Inventors: Nicolas B. Duarte, Yu Jiao, Khushroo H. Lakdawala, Arthur C. Scott, Monroe A. Stone
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Patent number: 11220584Abstract: A coated substrate includes: a substrate and a first layer on at least a portion of the substrate, the first layer including a polymer selected from the group consisting of an acrylic, an epoxy, a polyurethane, a copolymer thereof, and a mixture thereof, and an additive selected from the group consisting of an ultraviolet light (UV) absorber, a UV stabilizer, and a mixture thereof. The coated substrate further includes a second layer on at least a portion of the first layer, and a third layer on at least a portion of the second layer. A method of forming a coated substrate includes: forming a first layer on at least a portion of a substrate; forming a second layer on at least portion of the first layer; and forming a third layer by plasma enhanced chemical vapor deposition on at least a portion of the second layer.Type: GrantFiled: June 10, 2020Date of Patent: January 11, 2022Assignee: PPG Industries Ohio, Inc.Inventors: Krishna K. Uprety, Alexander Bimanand, Khushroo H. Lakdawala, Harry Buhay
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Publication number: 20210190715Abstract: A system for monitoring a condition of an article including a conductive coating includes: a measurement device electrically connectable to the conductive coating of the article configured to sense an electrical property of the conductive coating; and a processor electrically connected to the measurement device. The processor is configured to: receive the sensed electrical property of the conductive coating from the measurement device; determine a resistance of the conductive coating based on the received sensed electrical property; determine an estimated remaining usable life of the article based on the determined resistance of the conductive coating; and generate an output signal representative of the determined estimated remaining usable life.Type: ApplicationFiled: August 27, 2019Publication date: June 24, 2021Applicant: PPG Industries Ohio, Inc.Inventors: Emmanuel C. Francois, Stephen J. Molmer, Khushroo H. Lakdawala, Nicolas B. Duarte
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Publication number: 20200299535Abstract: A coated substrate includes: a substrate and a first layer on at least a portion of the substrate, the first layer including a polymer selected from the group consisting of an acrylic, an epoxy, a polyurethane, a copolymer thereof, and a mixture thereof, and an additive selected from the group consisting of an ultraviolet light (UV) absorber, a UV stabilizer, and a mixture thereof. The coated substrate further includes a second layer on at least a portion of the first layer, and a third layer on at least a portion of the second layer. A method of forming a coated substrate includes: forming a first layer on at least a portion of a substrate; forming a second layer on at least portion of the first layer; and forming a third layer by plasma enhanced chemical vapor deposition on at least a portion of the second layer.Type: ApplicationFiled: June 10, 2020Publication date: September 24, 2020Inventors: Krishna K. Uprety, Alexander Bimanand, Khushroo H. Lakdawala, Harry Buhay
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Patent number: 10780972Abstract: A coated transparency including an electrically conductive multilayer stack is disclosed. The electrically conductive multilayer stack includes a first metal oxide layer including aluminum doped zinc (AZO), a metal layer including gold, and a second metal oxide layer including AZO. The electrically conductive multilayer stack has a low sheet resistance to provide radar attenuation and anti-static or static-dissipative properties, and has greater flexibility and resistance to corrosion than conventional multilayer stacks used to coat aircraft canopies and other substrates.Type: GrantFiled: April 8, 2016Date of Patent: September 22, 2020Assignee: PPG Industries Ohio, Inc.Inventors: Krishna K. Uprety, Alexander Bimanand, Khushroo H. Lakdawala
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Patent number: 10683433Abstract: A coated substrate includes: a substrate and a first layer on at least a portion of the substrate, the first layer including a polymer selected from the group consisting of an acrylic, an epoxy, a polyurethane, a copolymer thereof, and a mixture thereof, and an additive selected from the group consisting of an ultraviolet light (UV) absorber, a UV stabilizer, and a mixture thereof. The coated substrate further includes a second layer on at least a portion of the first layer, and a third layer on at least a portion of the second layer. A method of forming a coated substrate includes: forming a first layer on at least a portion of a substrate; forming a second layer on at least portion of the first layer; and forming a third layer by plasma enhanced chemical vapor deposition on at least a portion of the second layer.Type: GrantFiled: October 28, 2015Date of Patent: June 16, 2020Assignee: PPG INDUSTRIES OHIO, INC.Inventors: Krishna K. Uprety, Alexander Bimanand, Khushroo H. Lakdawala, Harry Buhay
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Publication number: 20190319451Abstract: A system for monitoring performance of an aircraft windshield includes a sensor comprising a sensory contact and an evaluation unit. The sensory contact is in physical contact with one or more components of the windshield, and generates a signal representative of the performance of the component(s) of the windshield. An electrical connector is secured to the surface of the windshield facing the interior of the aircraft. The signal from the sensory contact passes through the connector to the evaluation unit. The evaluation unit acts on the signal to determine the performance of the component(s) of the windshield, wherein the evaluation unit is spaced from and out of physical contact with the windshield and the electrical connector, and is in electrical contact with the electrical connector.Type: ApplicationFiled: June 21, 2019Publication date: October 17, 2019Inventors: Nicolas B. Duarte, Yu Jiao, Khushroo H. Lakdawala, Arthur C. Scott, Monroe A. Stone
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Patent number: 10442549Abstract: A coated substrate includes: a substrate; an electrically conductive multilayer stack on the substrate; and a coating on the electrically conductive multilayer stack. A thickness of the coating is 5 to 10 mils and the coating includes a conductive, anti-static tiecoat on the electrically conductive multilayer stack; and a conductive, anti-static topcoat on the conductive, anti-static tiecoat. The conductive, anti-static tiecoat and the conductive, anti-static topcoat are formed from a coating composition including a hydrophobic first aliphatic polyisocyanate, a second aliphatic polyisocyanate including a hydrophilic portion, a polyester polyol, a hydrophilic polyol, and a fluorinated polyol compound is disclosed.Type: GrantFiled: April 2, 2015Date of Patent: October 15, 2019Assignee: PPG INDUSTRIES OHIO, INC.Inventors: Alexander Bimanand, Krishna K. Uprety, Khushroo H. Lakdawala
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Patent number: 10420210Abstract: A transparency including a conductive mesh is disclosed. The conductive mesh is formed by a plurality of inkjet printed electrically conductive lines on a polymer film or a glass, polyacrylate, polycarbonate, or polyurethane substrate, wherein at least one inkjet printed electrically conductive line intersects at least one other inkjet printed electrically conductive line. A flying vehicle including a transparency including a conductive mesh is also disclosed. Additionally, a method of preparing a transparency by laminating a polymer film and a substrate together, wherein a conductive mesh is formed on the polymer film by a plurality of inkjet printed electrically conductive lines, is also disclosed.Type: GrantFiled: February 20, 2018Date of Patent: September 17, 2019Assignee: PPG INDUSTRIES OHIO, INC.Inventors: Krishna K. Uprety, Khushroo H. Lakdawala, Alexander Bimanand
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Patent number: 10374416Abstract: A system for monitoring performance of an aircraft windshield includes a sensor comprising a sensory contact and an evaluation unit. The sensory contact is in physical contact with one or more components of the windshield, and generates a signal representative of the performance of the component(s) of the windshield. An electrical connector is secured to the surface of the windshield facing the interior of the aircraft. The signal from the sensory contact passes through the connector to the evaluation unit. The evaluation unit acts on the signal to determine the performance of the component(s) of the windshield, wherein the evaluation unit is spaced from and out of physical contact with the windshield and the electrical connector, and is in electrical contact with the electrical connector.Type: GrantFiled: August 21, 2018Date of Patent: August 6, 2019Assignee: PPG Industries Ohio, Inc.Inventors: Nicolas B. Duarte, Yu Jiao, Khushroo H. Lakdawala, Arthur C. Scott, Monroe A. Stone
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Publication number: 20190006840Abstract: A system for monitoring performance of an aircraft windshield includes a sensor comprising a sensory contact and an evaluation unit. The sensory contact is in physical contact with one or more components of the windshield, and generates a signal representative of the performance of the component(s) of the windshield. An electrical connector is secured to the surface of the windshield facing the interior of the aircraft. The signal from the sensory contact passes through the connector to the evaluation unit. The evaluation unit acts on the signal to determine the performance of the component(s) of the windshield, wherein the evaluation unit is spaced from and out of physical contact with the windshield and the electrical connector, and is in electrical contact with the electrical connector.Type: ApplicationFiled: August 21, 2018Publication date: January 3, 2019Inventors: Nicolas B. Duarte, Yu Jiao, Khushroo H. Lakdawala, Arthur C. Scott, Monroe A. Stone
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Publication number: 20180291497Abstract: A method of manufacturing indium tin oxide includes sputtering indium and tin from a target onto a substrate, the sputtering including moving the target along a path over the substrate. The indium tin oxide may have a sheet resistance less than 0.5 ?/?. An indium film includes: a first moving target sputtered indium tin oxide layer; a second moving target sputtered indium tin oxide layer on the first moving target sputtered indium tin oxide layer; and a third moving target sputtered indium tin oxide layer on the second moving target sputtered indium tin oxide layer. A transparency includes the indium tin oxide, and a flying vehicle includes the transparency.Type: ApplicationFiled: June 5, 2018Publication date: October 11, 2018Inventors: Krishna K. Uprety, Khushroo H. Lakdawala, Russell Shellenberger, Mahmood Ahmad Ali
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Patent number: 10063047Abstract: A system for monitoring performance of an aircraft windshield includes a sensor comprising a sensory contact and an evaluation unit. The sensory contact is in physical contact with one or more components of the windshield, and generates a signal representative of the performance of the component(s) of the windshield. An electrical connector is secured to the surface of the windshield facing the interior of the aircraft. The signal from the sensory contact passes through the connector to the evaluation unit. The evaluation unit acts on the signal to determine the performance of the component(s) of the windshield, wherein the evaluation unit is spaced from and out of physical contact with the windshield and the electrical connector, and is in electrical contact with the electrical connector.Type: GrantFiled: February 27, 2015Date of Patent: August 28, 2018Assignee: PPG Industries Ohio, Inc.Inventors: Nicolas B. Duarte, Yu Jiao, Khushroo H. Lakdawala, Arthur C. Scott, Monroe A. Stone
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Publication number: 20180192515Abstract: A transparency including a conductive mesh is disclosed. The conductive mesh is formed by a plurality of inkjet printed electrically conductive lines on a polymer film or a glass, polyacrylate, polycarbonate, or polyurethane substrate, wherein at least one inkjet printed electrically conductive line intersects at least one other inkjet printed electrically conductive line. A flying vehicle including a transparency including a conductive mesh is also disclosed. Additionally, a method of preparing a transparency by laminating a polymer film and a substrate together, wherein a conductive mesh is formed on the polymer film by a plurality of inkjet printed electrically conductive lines, is also disclosed.Type: ApplicationFiled: February 20, 2018Publication date: July 5, 2018Inventors: Krishna K. Uprety, Khushroo H. Lakdawala, Alexander Bimanand
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Patent number: 9988707Abstract: A method of manufacturing indium tin oxide includes sputtering indium and tin from a target onto a substrate, the sputtering including moving the target along a path over the substrate. The indium tin oxide may have a sheet resistance less than 0.5 ?/?. An indium film includes: a first moving target sputtered indium tin oxide layer; a second moving target sputtered indium tin oxide layer on the first moving target sputtered indium tin oxide layer; and a third moving target sputtered indium tin oxide layer on the second moving target sputtered indium tin oxide layer. A transparency includes the indium tin oxide, and a flying vehicle includes the transparency.Type: GrantFiled: May 30, 2014Date of Patent: June 5, 2018Assignee: PPG INDUSTRIES OHIO, INC.Inventors: Krishna K. Uprety, Khushroo H. Lakdawala, Russell Shellenberger, Mahmood Ahmad Ali
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Patent number: 9986669Abstract: A transparency includes a transparent substrate and a plurality of electrically conductive lines on the transparent substrate, at least one of the electrically conductive lines intersecting at least one other electrically conductive line, and at least one of the electrically conductive lines having a width of no more than 50 ?m to reduce distraction resulting from optical diffraction of light transmitted through or reflected by the transparency as compared to a transparency comprising electrically conductive lines having a width greater than 50 ?m. A coated substrate includes: a substrate; a dielectric layer on the substrate; and a sensor including a conductive layer on the dielectric layer, where at least one layer selected from the dielectric layer and the conductive layer is formed by at least one method selected from lithography, inkjet printing, and aerosol jet printing.Type: GrantFiled: January 28, 2016Date of Patent: May 29, 2018Assignee: PPG INDUSTRIES OHIO, INC.Inventors: Krishna K. Uprety, Alexander Bimanand, Khushroo H. Lakdawala
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Patent number: 9900980Abstract: A transparency including a conductive mesh is disclosed. The conductive mesh is formed by a plurality of inkjet printed electrically conductive lines on a polymer film or a glass, polyacrylate, polycarbonate, or polyurethane substrate, wherein at least one inkjet printed electrically conductive line intersects at least one other inkjet printed electrically conductive line. A flying vehicle including a transparency including a conductive mesh is also disclosed. Additionally, a method of preparing a transparency by laminating a polymer film and a substrate together, wherein a conductive mesh is formed on the polymer film by a plurality of inkjet printed electrically conductive lines, is also disclosed.Type: GrantFiled: March 3, 2016Date of Patent: February 20, 2018Assignee: PPG INDUSTRIES OHIO, INC.Inventors: Krishna K. Uprety, Khushroo H. Lakdawala, Alexander Bimanand
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Publication number: 20170291680Abstract: A coated transparency includes: a transparency; a base layer on the transparency, the base layer comprising at least one selected from an organic compound, an organosilicon compound, and a polysiloxane compound; a metal layer physically contacting the base layer; and a metal oxide layer on the metal layer, the metal oxide layer comprising aluminum doped zinc oxide (AZO).Type: ApplicationFiled: April 8, 2016Publication date: October 12, 2017Inventors: Krishna K. Uprety, Alexander Bimanand, Khushroo H. Lakdawala
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Publication number: 20170150659Abstract: A transparency includes a transparent substrate and a plurality of electrically conductive lines on the transparent substrate, at least one of the electrically conductive lines intersecting at least one other electrically conductive line, and at least one of the electrically conductive lines having a width of no more than 50 ?m to reduce distraction resulting from optical diffraction of light transmitted through or reflected by the transparency as compared to a transparency comprising electrically conductive lines having a width greater than 50 ?m. A coated substrate includes: a substrate; a dielectric layer on the substrate; and a sensor including a conductive layer on the dielectric layer, where at least one layer selected from the dielectric layer and the conductive layer is formed by at least one method selected from lithography, inkjet printing, and aerosol jet printing.Type: ApplicationFiled: January 28, 2016Publication date: May 25, 2017Inventors: Krishna K. Uprety, Alexander Bimanand, Khushroo H. Lakdawala
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Patent number: 9604436Abstract: A composition includes an isocyanate, a polyether diol, a branched short chain diol having a backbone including carbon atoms in a range of 1 to 9 and at least one branching group, and a cross-linker having a hydroxyl functionality in a range of 2.2 to 4. A films includes the composition and an interlayer includes the film. Transparencies including the interlayer and methods of making the same are further disclosed.Type: GrantFiled: January 21, 2015Date of Patent: March 28, 2017Assignee: PPG Industries Ohio, Inc.Inventors: Razmik Boghossian, Khushroo H. Lakdawala