Patents by Inventor Natesan Venkataraman
Natesan Venkataraman 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: 11963927Abstract: A glass container for storing pharmaceutical formulations may include a glass body formed from a Type IA or Type IB glass composition according to ASTM Standard E438-92(2011). The glass body may include a wall portion with an inner surface and an outer surface, a heel portion and a floor portion, wherein the inner surface of the glass container is formed by the inner surface of the glass body. The glass body may include at least a class A2 base resistance or better according to ISO 695, at least a type HGB2 hydrolytic resistance or better according to ISO 719 and Type 1 chemical durability according to USP <660>. The glass container does not comprise a boron-rich layer on the inner surface of the glass body in as formed condition.Type: GrantFiled: August 18, 2020Date of Patent: April 23, 2024Assignee: Corning IncorporatedInventors: Theresa Chang, Paul Stephen Danielson, Steven Edward DeMartino, Andrei Gennadyevich Fadeev, Robert Michael Morena, Santona Pal, John Stephen Peanasky, Robert Anthony Schaut, Christopher Lee Timmons, Natesan Venkataraman, Ronald Luce Verkleeren, Dana Craig Bookbinder
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Patent number: 11951072Abstract: A coated glass pharmaceutical package includes a glass body having a Type 1 chemical durability according to USP 660, at least a class A2 base resistance or better according to ISO 695, and at least a type HGB2 hydrolytic resistance or better according to ISO 719, the glass body having an interior surface and an exterior surface and a wall extending therebetween. A lubricous coating having a thickness of less than or equal to 90 nm may be positioned on at least a portion of the exterior surface of the glass body but not on any portion of the interior surface. The portion of the coated glass package with the lubricous coating comprises a coefficient of friction that is at least 20% less than an uncoated glass package and the coefficient of friction does not increase by more than 30% after undergoing a depyrogenation cycle including exposure to a temperature of 250° C. for a time period of 30 minutes.Type: GrantFiled: October 15, 2019Date of Patent: April 9, 2024Assignee: Corning IncorporatedInventors: Dana Craig Bookbinder, Theresa Chang, Paul Stephen Danielson, Steven Edward DeMartino, Andrei Gennadyevich Fadeev, Robert Michael Morena, Santona Pal, John Stephen Peanasky, Robert Anthony Schaut, Christopher Lee Timmons, Natesan Venkataraman, Ronald Luce Verkleeren
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Patent number: 11932575Abstract: A tinted glass composition and glass article including the same, the composition including: about 45 mol % to about 80 mol % SiO2; about 6 mol % to about 22 mol % Al2O3; 0 mol % to about 25 mol % B2O3; about 7 mol % to about 25 mol % of at least one alkaline earth oxide selected from MgO, CaO, SrO, BaO, and combinations thereof, about 0.5 mol % to about 20 mol % CuO; 0 mol % to about 6 mol % SnO2, SnO, or a combination thereof, 0 mol % to about 1.0 mol % C; 0 mol % to about 5 mol % La2O3; and 0 mol % to about 10 mol % PbO, and that is substantially free of alkali metal.Type: GrantFiled: January 3, 2023Date of Patent: March 19, 2024Assignee: CORNING INCORPORATEDInventors: Heather Debra Boek, Timothy James Kiczenski, Lisa Anne Tietz Moore, Natesan Venkataraman, Mark Owen Weller
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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: 11780758Abstract: A method of making a glass sheet comprises laminating a high CTE core glass to a low CTE clad glass at high temperatures and allowing the laminate to cool creating compressive stress in the clad glass, and then ion exchanging the laminate to increase the compressive stress in the outer near surface regions of the clad glass. The core glass may include ions that exchange with ion in the clad glass to increase the compressive stress in inner surface regions of the clad glass adjacent to the clad glass/core glass interfaces. The glass laminate may be formed and laminated using a fusion forming and laminating process and fusion formable and ion exchangeable glass compositions.Type: GrantFiled: June 9, 2021Date of Patent: October 10, 2023Assignee: CORNING INCORPORATEDInventors: Michael Thomas Gallagher, Suresh Thakordas Gulati, Timothy James Kiczenski, Robert Anthony Schaut, Natesan Venkataraman
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Publication number: 20230295038Abstract: A laminated glass article comprises a core layer comprising a core glass composition, and a cladding layer directly adjacent to the core layer and comprising a clad glass composition. A stress of the cladding layer increases with increasing distance from an outer surface of the cladding layer from a compressive stress to a tensile stress, transitions to a compressive stress as a step-change at an interface region between the core layer and the cladding layer, and increases with increasing distance from the interface region to a center of the core layer from the compressive stress to a tensile stress.Type: ApplicationFiled: May 24, 2023Publication date: September 21, 2023Inventors: Douglas Clippinger Allan, Vladislav Yuryevich Golyatin, Petr Gorelchenko, Jason Thomas Harris, Jin Su Kim, Peter Joseph Lezzi, Rostislav Vatchev Roussev, 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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Patent number: 11697617Abstract: A laminated glass article comprises a core layer comprising a core glass composition, and a cladding layer directly adjacent to the core layer and comprising a clad glass composition. A stress of the cladding layer increases with increasing distance from an outer surface of the cladding layer from a compressive stress to a tensile stress, transitions to a compressive stress as a step-change at an interface region between the core layer and the cladding layer, and increases with increasing distance from the interface region to a center of the core layer from the compressive stress to a tensile stress.Type: GrantFiled: July 31, 2020Date of Patent: July 11, 2023Assignee: CORNING INCORPORATEDInventors: Douglas Clippinger Allan, Vladislav Yuryevich Golyatin, Petr Gorelchenko, Jason Thomas Harris, Jin Su Kim, Peter Joseph Lezzi, Rostislav Vatchev Roussev, Natesan Venkataraman
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Publication number: 20230143241Abstract: A tinted glass composition and glass article including the same, the composition including: about 45 mol % to about 80 mol % SiO2; about 6 mol % to about 22 mol % Al2O3; 0 mol % to about 25 mol % B2O3; about 7 mol % to about 25 mol % of at least one alkaline earth oxide selected from MgO, CaO, SrO, BaO, and combinations thereof, about 0.5 mol % to about 20 mol % CuO; 0 mol % to about 6 mol % SnO2, SnO, or a combination thereof, 0 mol % to about 1.0 mol % C; 0 mol % to about 5 mol % La2O3; and 0 mol % to about 10 mol % PbO, and that is substantially free of alkali metal.Type: ApplicationFiled: January 3, 2023Publication date: May 11, 2023Inventors: Heather Debra Boek, Timothy James Kiczenski, Lisa Anne Tietz Moore, Natesan Venkataraman, Mark Owen Weller
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Patent number: 11597676Abstract: According to one embodiment, a glass-ceramic composition may include from about 60 mol. % to about 75 mol. % SiO2; from about 5 mol. % to about 10 mol. % Al2O3; from about 2 mol. % to about 20 mol. % alkali oxide R2O, the alkali oxide R2O including Li2O and Na2O; and from 0 mol. % to about 5 mol. % alkaline earth oxide RO, the alkaline earth oxide RO including MgO. A ratio of Al2O3 (mol. %) to the sum of (R2O (mol. %)+RO (mol. %)) may be less than 1 in the glass-ceramic composition. A major crystalline phase of the glass-ceramic composition may be Li2Si2O5. A liquidus viscosity of the glass-ceramic composition may be greater than 35 kP. The glass-ceramic composition may be used to form the glass clad layer(s) of a laminated glass article.Type: GrantFiled: July 15, 2020Date of Patent: March 7, 2023Assignee: CORNING INCORPORATEDInventors: Heather Debra Boek, Natesan Venkataraman, Mark Owen Weller
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Patent number: 11572303Abstract: A tinted glass composition and glass article including the same, the composition including: about 45 mol % to about 80 mol % SiO2; about 6 mol % to about 22 mol % Al2O3; 0 mol % to about 25 mol % B2O3; about 7 mol % to about 25 mol % of at least one alkaline earth oxide selected from MgO, CaO, SrO, BaO, and combinations thereof; about 0.5 mol % to about 20 mol % CuO; 0 mol % to about 6 mol % SnO2, SnO, or a combination thereof; 0 mol % to about 1.0 mol % C; 0 mol % to about 5 mol % La2O3; and 0 mol % to about 10 mol % PbO, and that is substantially free of alkali metal.Type: GrantFiled: May 4, 2017Date of Patent: February 7, 2023Assignee: CORNING INCORPORATEDInventors: Heather Debra Boek, Timothy James Kiczenski, Lisa Anne Tietz Moore, Natesan Venkataraman, Mark Owen Weller
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Publication number: 20230027062Abstract: Alkali-doped boroaluminosilicate glasses are provided. The glasses include the network formers SiO2, B2O3, and Al2O3. The glass may, in some embodiments, have a Young's modulus of less than about 65 GPa and/or a coefficient of thermal expansion of less than about 40×10?7/° C. The glass may be used as a cover glass for electronic devices, a color filter substrate, a thin film transistor substrate, or an outer clad layer for a glass laminate.Type: ApplicationFiled: September 28, 2022Publication date: January 26, 2023Inventors: Adam James Ellison, Jason Sanger Frackenpohl, John Christopher Mauro, Douglas Miles Noni, JR., Natesan Venkataraman
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Patent number: 11506938Abstract: A lighting unit includes a glass laminate structure including a base layer formed from a first glass composition with a refractive index nbase and a surface layer fused to a surface of the base layer and formed from a second glass composition with a refractive index nsurface. The surface layer includes a high refractive index region with a refractive index nhigh and a low refractive index region with a refractive index nlow. nbase and nsurface satisfy the equation |nsurface?nbase?0.001, nhigh is greater than or equal to nbase 1, and nlow is less than nbase. The high refractive index region is optically coupled to the base layer such that at least a portion of light propagating through the base layer leaks out of the base layer and into the high refractive index region. A display device or a luminaire can include the lighting unit.Type: GrantFiled: July 11, 2017Date of Patent: November 22, 2022Assignee: CORNING INCORPORATEDInventors: Venkata Adiseshaiah Bhagavatula, Natesan Venkataraman
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Publication number: 20220339906Abstract: A glass article includes a glass core layer and a glass cladding layer adjacent to the core layer. A coefficient of thermal expansion (CTE) of the core layer is greater than a CTE of the cladding layer. The core layer has a tensile stress, and the cladding layer has a compressive stress. A retained strength of the glass article is a strength determined after abrasion of an outer surface of the glass article with 1 mL of 90 grit SiC particles for 5 seconds at an abrasion pressure, and a ratio of the retained strength at an abrasion pressure of 25 psi to the retained strength at an abrasion pressure of 5 psi is at least about 0.3.Type: ApplicationFiled: July 8, 2022Publication date: October 27, 2022Inventors: Thomas Michael Cleary, Guangli Hu, John Christopher Mauro, Douglas Miles Noni, JR., 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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Publication number: 20220274871Abstract: A laminated glass article comprises a core layer comprising a core glass composition, and a cladding layer directly adjacent to the core layer and comprising a clad glass composition. A stress of the cladding layer increases with increasing distance from an outer surface of the cladding layer from a compressive stress to a tensile stress, transitions to a compressive stress as a step-change at an interface region between the core layer and the cladding layer, and increases with increasing distance from the interface region to a center of the core layer from the compressive stress to a tensile stress.Type: ApplicationFiled: July 31, 2020Publication date: September 1, 2022Inventors: Douglas Clippinger Allan, Vladislav Yuryevich Golyatin, Petr Gorelchenko, Jason Thomas Harris, Jin Su Kim, Peter Joseph Lezzi, Rostislav Vatchev Roussev, Natesan Venkataraman
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Patent number: 11413848Abstract: A glass article includes a glass core layer and a glass cladding layer adjacent to the core layer. A coefficient of thermal expansion (CTE) of the core layer is greater than a CTE of the cladding layer. The core layer has a tensile stress, and the cladding layer has a compressive stress. A retained strength of the glass article is a strength determined after abrasion of an outer surface of the glass article with 1 mL of 90 grit SiC particles for 5 seconds at an abrasion pressure, and a ratio of the retained strength at an abrasion pressure of 25 psi to the retained strength at an abrasion pressure of 5 psi is at least about 0.3.Type: GrantFiled: March 25, 2015Date of Patent: August 16, 2022Assignee: Corning IncorporatedInventors: Thomas Michael Cleary, Guangli Hu, John Christopher Mauro, Douglas Miles Noni, Jr., Natesan Venkataraman
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Publication number: 20220212446Abstract: A laminated glass article comprises a core layer comprising a core glass composition having an average core coefficient of thermal expansion (CTEcore) and a clad layer directly adjacent to the core layer and comprising a clad glass composition having an average clad coefficient of thermal expansion (CTEclad) that is less than the CTEcore such that the clad layer is in compression and the core layer is in tension. A compressive stress of the clad layer increases with increasing distance from the outer surface of the clad layer, transitions to a minimum tensile stress as a step-change at an interface region between the core layer and the clad layer, and a magnitude of the tensile stress increases continuously to a maximum tensile stress in the core layer. Other stress profiles, and methods of preparing laminated glass articles are also disclosed.Type: ApplicationFiled: April 13, 2020Publication date: July 7, 2022Inventors: Jason Thomas Harris, Jin Su Kim, Peter Joseph Lezzi, 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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Patent number: RE49307Abstract: Alkali-doped boroaluminosilicate glasses are provided. The glasses include the network formers SiO2, B2O3, and Al2O3. The glass may, in some embodiments, have a Young's modulus of less than about 65 GPa and/or a coefficient of thermal expansion of less than about 40×10?7/° C. The glass may be used as a cover glass for electronic devices, a color filter substrate, a thin film transistor substrate, or an outer clad layer for a glass laminate.Type: GrantFiled: June 16, 2020Date of Patent: November 22, 2022Assignee: Corning IncorporatedInventors: Adam James Ellison, Jason Sanger Frackenpohl, John Christopher Mauro, Douglas Miles Noni, Jr., Natesan Venkataraman