Patents by Inventor Butchi Reddy Vaddi
Butchi Reddy Vaddi 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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Publication number: 20230405974Abstract: A glass element having a thickness from 25 ?m to 125 ?m, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress ?I of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is subject to 200,000 cycles of bending to a target bend radius of from 1 mm to 20 mm, by the parallel plate method. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm.Type: ApplicationFiled: August 3, 2023Publication date: December 21, 2023Inventors: Theresa Chang, Polly Wanda Chu, Patrick Joseph Cimo, Adam James Ellison, Timothy Michael Gross, Guangli Hu, Nicholas James Smith, Butchi Reddy Vaddi, Natesan Venkataraman
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Patent number: 11745471Abstract: A glass element having a thickness from 25 ?m to 125 ?m, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress GI of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is subject to 200,000 cycles of bending to a target bend radius of from 1 mm to 20 mm, by the parallel plate method. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm.Type: GrantFiled: June 13, 2022Date of Patent: September 5, 2023Assignee: Corning IncorporatedInventors: Theresa Chang, Polly Wanda Chu, Patrick Joseph Cimo, Adam James Ellison, Timothy Michael Gross, Guangli Hu, Nicholas James Smith, Butchi Reddy Vaddi, Natesan Venkataraman
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Publication number: 20220324202Abstract: A glass element having a thickness from 25 ?m to 125 ?m, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress GI of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is subject to 200,000 cycles of bending to a target bend radius of from 1 mm to 20 mm, by the parallel plate method. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm.Type: ApplicationFiled: June 13, 2022Publication date: October 13, 2022Inventors: Theresa Chang, Polly Wanda Chu, Patrick Joseph Cimo, Adam James Ellison, Timothy Michael Gross, Guangli Hu, Nicholas James Smith, Butchi Reddy Vaddi, Natesan Venkataraman
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Patent number: 11358372Abstract: A glass element having a thickness from 25 ?m to 125 ?m, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress GI of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is subject to 200,000 cycles of bending to a target bend radius of from 1 mm to 20 mm, by the parallel plate method. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm.Type: GrantFiled: October 5, 2020Date of Patent: June 14, 2022Assignee: Corning IncorporatedInventors: Theresa Chang, Polly Wanda Chu, Patrick Joseph Cimo, Adam James Ellison, Timothy Michael Gross, Guangli Hu, Nicholas James Smith, Butchi Reddy Vaddi, Natesan Venkataraman
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Publication number: 20210317028Abstract: A method includes heating a glass preform having a plurality of glass layers and drawing the glass preform in a distal direction to form a drawn glass sheet extending distally from the glass preform and having the plurality of glass layers. The drawn glass sheet is thinner than the glass preform. The drawn glass sheet can be rolled onto a collection spool. At least a portion of a glass layer can be removed from the drawn glass sheet. An exemplary glass sheet includes a first glass layer, a second glass layer adjacent to the first glass layer, and a thickness of at most about 0.1 mm. An exemplary ion exchanged glass sheet includes a thickness of at most about 0.1 mm and a surface layer that is under a compressive stress and extends into an interior of the glass sheet to a depth of layer.Type: ApplicationFiled: June 24, 2021Publication date: October 14, 2021Inventors: Patrick Joseph Cimo, Adam James Ellison, Michael Thomas Gallagher, Dennis James Post, Butchi Reddy Vaddi, Natesan Venkataraman
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Patent number: 11123959Abstract: A laminated glass article includes a core layer and a clad layer directly adjacent to the core layer. The core layer is formed from a core glass composition. The clad layer is formed from a clad glass composition. An average clad coefficient of thermal expansion (CTE) is less than an average core CTE such that the clad layer is in compression and the core layer is in tension. A compressive stress of the clad layer decreases with increasing distance from an outer surface of the clad layer within an outer portion of the clad layer and remains substantially constant with increasing distance from the outer surface of the clad layer within an intermediate portion of the clad layer disposed between the outer portion and the core layer. A thickness of the intermediate portion of the clad layer is at least about 82% of a thickness of the clad layer.Type: GrantFiled: October 7, 2015Date of Patent: September 21, 2021Assignee: CORNING INCORPORATEDInventors: Vladislav Yuryevich Golyatin, Jason Thomas Harris, Guangli Hu, Butchi Reddy Vaddi, Natesan Venkataraman
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Patent number: 11084751Abstract: A method includes contacting a glass sheet with a forming surface to form a shaped glass article. An effective viscosity of the glass sheet during the contacting step is less than a contact viscosity of the glass sheet in contact with the forming surface during the contacting step.Type: GrantFiled: July 31, 2019Date of Patent: August 10, 2021Assignee: CORNING INCORPORATEDInventors: Thierry Luc Alain Dannoux, Vladislav Yuryevich Golyatin, John Richard Ridge, Ljerka Ukrainczyk, Butchi Reddy Vaddi, Natesan Venkataraman
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Patent number: 11078102Abstract: A method includes heating a glass preform having a plurality of glass layers and drawing the glass preform in a distal direction to form a drawn glass sheet extending distally from the glass preform and having the plurality of glass layers. The drawn glass sheet is thinner than the glass preform. The drawn glass sheet can be rolled onto a collection spool. At least a portion of a glass layer can be removed from the drawn glass sheet. An exemplary glass sheet includes a first glass layer, a second glass layer adjacent to the first glass layer, and a thickness of at most about 0.1 mm. An exemplary ion exchanged glass sheet includes a thickness of at most about 0.1 mm and a surface layer that is under a compressive stress and extends into an interior of the glass sheet to a depth of layer.Type: GrantFiled: November 20, 2015Date of Patent: August 3, 2021Assignee: CORNING INCORPORATEDInventors: Patrick Joseph Cimo, Adam James Ellison, Michael Thomas Gallagher, Dennis James Post, Butchi Reddy Vaddi, Natesan Venkataraman
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Publication number: 20210034112Abstract: A glass element having a thickness from 25 ?m to 125 ?m, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress GI of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is subject to 200,000 cycles of bending to a target bend radius of from 1 mm to 20 mm, by the parallel plate method. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm.Type: ApplicationFiled: October 5, 2020Publication date: February 4, 2021Inventors: THERESA CHANG, Polly Wanda Chu, Patrick Joseph Cimo, Adam James Ellison, Timothy Michael Gross, Guangli Hu, Nicholas James Smith, Butchi Reddy Vaddi, Natesan Venkataraman
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Patent number: 10824200Abstract: A glass element having a thickness from 25 ?m to 125 ?m, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress ?I of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is subject to 200,000 cycles of bending to a target bend radius of from 1 mm to 20 mm, by the parallel plate method. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm.Type: GrantFiled: October 17, 2018Date of Patent: November 3, 2020Assignee: Corning IncorporatedInventors: Theresa Chang, Polly Wanda Chu, Patrick Joseph Cimo, Adam James Ellison, Timothy Michael Gross, Guangli Hu, Nicholas James Smith, Butchi Reddy Vaddi, Natesan Venkataraman
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Publication number: 20200307173Abstract: According to one or more embodiments described herein, a laminate glass article may be produced by a method that includes providing a first glass sheet and a second glass sheet, assembling the first glass sheet and second glass sheet into a glass stack, and bonding the first glass sheet to the second glass sheet to form the laminate glass article. In one or more embodiments, an intermediate layer may be positioned between the first bonding surface and the second bonding surface, the first bonding surface and the second bonding surface may be roughened surfaces, or the first bonding surface and the second bonding surface may be chemically treated by vacuum deposition.Type: ApplicationFiled: June 7, 2017Publication date: October 1, 2020Inventors: Paul Bennett Dohn, Vladislav Yuryevich Golyatin, Butchi Reddy Vaddi, Natesan Venkataraman
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Publication number: 20200062631Abstract: A method includes contacting a glass sheet with a forming surface to form a shaped glass article. An effective viscosity of the glass sheet during the contacting step is less than a contact viscosity of the glass sheet in contact with the forming surface during the contacting step.Type: ApplicationFiled: July 31, 2019Publication date: February 27, 2020Inventors: Thierry Luc Alain Dannoux, Vladislav Yuryevich Golyatin, John Richard Ridge, Ljerka Ukrainczyk, Butchi Reddy Vaddi, Natesan Venkataraman
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Patent number: 10377656Abstract: A method includes contacting a second layer of a glass sheet with a forming surface to form a shaped glass article. The glass sheet includes a first layer adjacent to the second layer. The first layer includes a first glass composition. The second layer includes a second glass composition. An effective viscosity of the glass sheet during the contacting step is less than a viscosity of the second layer of the glass sheet during the contacting step. A shaped glass article includes a first layer including a first glass composition and a second layer including a second glass composition. A softening point of the first glass composition is less than a softening point of the second glass composition. An effective 108.2 P temperature of the glass article is at most about 900° C.Type: GrantFiled: May 7, 2015Date of Patent: August 13, 2019Assignee: Corning IncorporatedInventors: Thierry Luc Alain Dannoux, Vladislav Yuryevich Golyatin, John Richard Ridge, Ljerka Ukrainczyk, Butchi Reddy Vaddi, Natesan Venkataraman
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Publication number: 20190050027Abstract: A glass element having a thickness from 25 ?m to 125 ?m, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress ?I of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is subject to 200,000 cycles of bending to a target bend radius of from 1 mm to 20 mm, by the parallel plate method. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm.Type: ApplicationFiled: October 17, 2018Publication date: February 14, 2019Inventors: Theresa Chang, Polly Wanda Chu, Patrick Joseph Cimo, Adam James Ellison, Timothy Michael Gross, Guangli Hu, Nicholas James Smith, Butchi Reddy Vaddi, Natesan Venkataraman
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Publication number: 20180327296Abstract: A method includes heating a glass preform having a plurality of glass layers and drawing the glass preform in a distal direction to form a drawn glass sheet extending distally from the glass preform and having the plurality of glass layers. The drawn glass sheet is thinner than the glass preform. The drawn glass sheet can be rolled onto a collection spool. At least a portion of a glass layer can be removed from the drawn glass sheet. An exemplary glass sheet includes a first glass layer, a second glass layer adjacent to the first glass layer, and a thickness of at most about 0.1 mm. An exemplary ion exchanged glass sheet includes a thickness of at most about 0.1 mm and a surface layer that is under a compressive stress and extends into an interior of the glass sheet to a depth of layer.Type: ApplicationFiled: November 20, 2015Publication date: November 15, 2018Inventors: Patrick Joseph Cimo, Adam James Ellison, Michael Thomas Gallagher, Dennis James Post, Butchi Reddy Vaddi, Natesan Venkataraman
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Publication number: 20180154615Abstract: A glass laminate includes a first pane having a glass-glass laminate structure, a second pane, and an interlayer disposed between the first pane and the second pane and including a polymeric material.Type: ApplicationFiled: June 1, 2016Publication date: June 7, 2018Inventors: Paul Bennett Dohn, Viadislav Yuryevich Golyatin, Butchi Reddy Vaddi, Natesan Venkataraman
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Publication number: 20180113490Abstract: A glass element having a thickness from 25 ?m to 125 ?m, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress ?I of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is subject to 200,000 cycles of bending to a target bend radius of from 1 mm to 20 mm, by the parallel plate method. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm.Type: ApplicationFiled: December 15, 2017Publication date: April 26, 2018Inventors: Theresa Chang, Polly Wanda Chu, Patrick Joseph Cimo, Adam James Ellison, Timothy Michael Gross, Guangli Hu, Nicholas James Smith, Butchi Reddy Vaddi, Natesan Venkataraman
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Patent number: 9898046Abstract: A glass element having a thickness from 25 ?m to 125 ?m, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress ?I of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is subject to 200,000 cycles of bending to a target bend radius of from 1 mm to 20 mm, by the parallel plate method. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm.Type: GrantFiled: January 4, 2017Date of Patent: February 20, 2018Assignee: Corning IncorporatedInventors: Theresa Chang, Polly Wanda Chu, Patrick Joseph Cimo, Adam James Ellison, Timothy Michael Gross, Guangli Hu, Nicholas James Smith, Butchi Reddy Vaddi, Natesan Venkataraman
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Publication number: 20170297308Abstract: A laminated glass article includes a core layer and a clad layer directly adjacent to the core layer. The core layer is formed from a core glass composition. The clad layer is formed from a clad glass composition. An average clad coefficient of thermal expansion (CTE) is less than an average core CTE such that the clad layer is in compression and the core layer is in tension. A compressive stress of the clad layer decreases with increasing distance from an outer surface of the clad layer within an outer portion of the clad layer and remains substantially constant with increasing distance from the outer surface of the clad layer within an intermediate portion of the clad layer disposed between the outer portion and the core layer.Type: ApplicationFiled: October 7, 2015Publication date: October 19, 2017Applicant: Corning IncorporatedInventors: Vladislav Yuryevich Golyatin, Jason Thomas Harris, Guangli Hu, Gautam Meda, Butchi Reddy Vaddi, Natesan Venkataraman
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Patent number: 9707658Abstract: An edge finishing apparatus includes a surface, a fluid delivery device configured to deliver at least one magnetorheological polishing fluid (MPF) ribbon to the at least one well, at least one magnet placed adjacent to the surface to selectively apply a magnetic field in a vicinity of the surface, and at least one holder placed in opposing relation to the surface, the at least one holder being configured to support at least one article such that an edge of the at least one article can be selectively immersed in the MPF ribbon delivered to the at least one well.Type: GrantFiled: July 7, 2015Date of Patent: July 18, 2017Assignee: Corning IncorporatedInventors: Charles Michael Darcangelo, Steven Edward DeMartino, Aric Bruce Shorey, Daniel Duane Strong, David Alan Tammaro, Butchi Reddy Vaddi