Patents by Inventor Srikanth Varanasi

Srikanth Varanasi 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).

  • Publication number: 20240109274
    Abstract: A coated glass article and a method for its production is disclosed. One or more coatings and layers are applied onto or disposed between a pair of glass sheets to produce such coated glass article that enhances an accuracy and reliability of a heads-up-display system and an optical sensor coupled thereto. More particularly, the coated glass article includes an antireflective layer to facilitate a light transmission of at least 80% for a plurality of wavelengths through the coated glass article and a visible light reflective layer to enhance a visible light reflectance of the coated glass article to between 8.0% and 10.0%.
    Type: Application
    Filed: February 4, 2022
    Publication date: April 4, 2024
    Applicant: Pilkington Group Limited
    Inventor: Srikanth VARANASI
  • Publication number: 20230373195
    Abstract: A laminated glazing and a method for its production is disclosed. One or more coatings and layers are applied onto or disposed between a pair of sheets to produce such laminated glazing that enhances an accuracy and reliability of an optical sensor coupled thereto. More particularly, the laminated glazing includes an antireflective layer to facilitate a light transmission of at least 80% for a plurality of wavelengths through the laminated glazing.
    Type: Application
    Filed: September 27, 2021
    Publication date: November 23, 2023
    Inventors: Srikanth VARANASI, Timothy MCKITTRICK
  • Patent number: 11772463
    Abstract: A window assembly includes a first pane of glass. The first pane of glass is chemically strengthened and exhibits a surface compressive stress of 400 MPa or more. A second pane of glass has a first major surface and a second major surface. The second major surface of the second pane of glass and a first major surface of the first pane of glass face each other. The second pane of glass includes 68-74 weight % SiO2, 2-6 weight % MgO, 1-10 weight % CaO, 12-16 weight % Na2O, 0-1 weight % K2O, 0.8-2.0 weight % Fe2O3 (total iron), 0-1.25 weight % TiO2, and 0-1.25 weight % CeO2. A polymeric interlayer is provided between the first pane of glass and the second pane of glass. The window assembly exhibits a direct solar transmittance of 55% or less and a total solar transmittance of 65% or less.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: October 3, 2023
    Assignee: Pilkington Group Limited
    Inventors: Srikanth Varanasi, Martin James Horsley, James Eckhart
  • Patent number: 11718070
    Abstract: A laminated window assembly has a first glass pane with a coating formed thereon, a second glass pane, and a polymeric interlayer provided between the first glass pane and the second glass pane. The coating includes a first layer deposited over a major surface of the glass pane, wherein the first layer has a refractive index of 1.6 or more and a thickness of 50 nm or less, a second layer deposited over the first layer, wherein the second layer has a refractive index that is less than the refractive index of the first layer and a thickness of 50 nm or less, a third layer deposited over the second layer, wherein the third layer has a refractive index that is greater than the refractive index of the second layer and a thickness of less than 500 nm, and a fourth layer deposited over the third layer, wherein the fourth layer has a refractive index that is less than the refractive index of the third layer and a thickness of 100 nm or less.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: August 8, 2023
    Assignee: Pilkington Group Limited
    Inventors: Srikanth Varanasi, David Lawrence Bamber, Shannon Jurca, David Alan Strickler
  • Publication number: 20230202912
    Abstract: A method of making a reflective coated glass article includes providing a glass substrate. A first gaseous mixture is formed. The first gaseous mixture includes a silane compound and inert gas. The first gaseous mixture is delivered to a location above a major surface of the glass substrate to deposit a first coating layer directly on the major surface of the glass substrate. The first coating layer is deposited at a thickness of 5-50 nm. A second gaseous mixture is formed. The second gaseous mixture includes a silane compound, a radical scavenger and molecular oxygen. The second gaseous mixture is delivered to a location above the first coating layer. A second coating layer is deposited at a thickness of 5-50 nm over the first coating layer. The coated glass article exhibits a total visible light reflectance (Illuminant D65, ten degree observer) of 45% or more from a coated side of the coated glass article.
    Type: Application
    Filed: March 6, 2023
    Publication date: June 29, 2023
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: SRIKANTH VARANASI, NEIL MCSPORRAN, MATTHEW BARRINGTON MAHONEY
  • Publication number: 20230159381
    Abstract: The invention provides a method of making a coated glass article in which a gaseous mixture is formed including an aluminum-containing compound, a boron-containing compound, and an inert gas. This gaseous mixture is delivered to a location above a major surface of a glass substrate to deposit a coating comprising aluminum, boron, and oxygen over the major surface of the glass substrate.
    Type: Application
    Filed: April 22, 2021
    Publication date: May 25, 2023
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: JUN NI, SRIKANTH VARANASI
  • Publication number: 20230105541
    Abstract: A coated glazing includes a transparent glass substrate and a coating located on the glass substrate. The coating is provided with at least the following layers in sequence starting from the glass substrate: a first layer having a refractive index of more than 1.6, an optional second layer having a refractive index that is less than the refractive index of the first layer, a third layer based on tin dioxide, a fourth layer based on an oxide of silicon, and a fifth layer based on titanium dioxide, wherein the fifth layer is photocatalytic.
    Type: Application
    Filed: March 11, 2021
    Publication date: April 6, 2023
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: JOHN WILLIAM OLDFIELD, SRIKANTH VARANASI
  • Patent number: 11618505
    Abstract: A frame structure for maintaining energy storage devices of a vehicle in position which is deformed in a controlled way in the event of a side-impact, in such a way to avoid deforming into the location of the vehicle seats. The proposed frame structure is adapted to deform controllably in a centre position align with a location between the vehicle seats. In this way are occupants of the vehicle kept safe since no or less deformation occur in the vehicle seat location. The above advantages are provided by that lateral support members of the frame includes a deformation zone adapted to deform in response to a lateral force exerted on the lateral support member. The deformation zone is located such that, when the frame structure is installed in the vehicle, the deformation zone is aligned with a location between seats of the vehicle.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: April 4, 2023
    Assignee: Volvo Car Corporation
    Inventors: Aria Ravantab, Fredrik Övgård, Srikanth Varanasi, Sven Ström, Krister Amundsson
  • Publication number: 20230098954
    Abstract: A coated glazing includes a transparent glass substrate, and a coating located on the glass substrate. The coating is provided with at least the following layers in sequence starting from the glass substrate: a first layer having a refractive index of more than 1.6, an optional second layer having a refractive index that is less than the refractive index of the first layer, a third layer based on tin dioxide doped with antimony, niobium and/or neodymium, and a fourth layer based on titanium dioxide, wherein the fourth layer is photocatalytic.
    Type: Application
    Filed: March 11, 2021
    Publication date: March 30, 2023
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: JOHN WILLIAM OLDFIELD, SRIKANTH VARANASI
  • Publication number: 20230071762
    Abstract: A coated glass article provides a visible light reflecting, solar control glazing with a low emittance, a low solar heat gain coefficient, and a low shading coefficient that can significantly improve energy costs in buildings and homes while providing a desirable neutral color for, at least, film side reflection. The low emittance characteristic of the 5 glazing would minimize any indirect heat gain from absorption.
    Type: Application
    Filed: February 18, 2021
    Publication date: March 9, 2023
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: SRIKANTH VARANASI, VIKASH RANJAN, LILA RAJ DAHAL
  • Patent number: 11542194
    Abstract: A coated glass article includes a glass substrate. A coating is formed on the glass substrate. The coating includes a first coating layer. The first coating layer includes fluorine doped tin oxide. A second coating layer is provided between the glass substrate and the first coating layer. The second coating layer includes silicon dioxide and at least one of phosphorus and boron. The coated glass article exhibits a haze of 2.0% or less.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: January 3, 2023
    Assignee: Pilkington Group Limited
    Inventors: Lila Raj Dahal, Douglas Martin Nelson, Jun Ni, David Alan Strickler, Srikanth Varanasi
  • Patent number: 11485678
    Abstract: A chemical vapor deposition process for forming a silicon oxide coating includes providing a moving glass substrate. A gaseous mixture is formed and includes a silane compound, a first oxygen-containing molecule, a radical scavenger, and at least one of a phosphorus-containing compound and a boron-containing compound. The gaseous mixture is directed toward and along the glass substrate. The gaseous mixture is reacted over the glass substrate to form a silicon oxide coating on the glass substrate at a deposition rate of 150 nm*m/min or more.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: November 1, 2022
    Assignee: Pilkington Group Limited
    Inventors: Lila Raj Dahal, Douglas Martin Nelson, Jun Ni, David Alan Strickler, Srikanth Varanasi
  • Publication number: 20220234334
    Abstract: A laminated window assembly has a first glass pane with a coating formed thereon, a second glass pane, and a polymeric interlayer provided between the first glass pane and the second glass pane. The coating includes a first layer deposited over a major surface of the glass pane, wherein the first layer has a refractive index of 1.6 or more and a thickness of 50 nm or less, a second layer deposited over the first layer, wherein the second layer has a refractive index that is less than the refractive index of the first layer and a thickness of 50 nm or less, a third layer deposited over the second layer, wherein the third layer has a refractive index that is greater than the refractive index of the second layer and a thickness of less than 500 nm, and a fourth layer deposited over the third layer, wherein the fourth layer has a refractive index that is less than the refractive index of the third layer and a thickness of 100 nm or less.
    Type: Application
    Filed: May 20, 2020
    Publication date: July 28, 2022
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: SRIKANTH VARANASI, DAVID LAWRENCE BAMBER, SHANNON JURCA, DAVID ALAN STRICKLER
  • Publication number: 20220212524
    Abstract: A window assembly includes a first pane of glass. The first pane of glass is chemically strengthened and exhibits a surface compressive stress of 400 MPa or more. A second pane of glass has a first major surface and a second major surface. The second major surface of the second pane of glass and a first major surface of the first pane of glass face each other. The second pane of glass includes 68-74 weight % SiO2, 2-6 weight % MgO, 1-10 weight % CaO, 12-16 weight % Na2O, 0-1 weight % K2O, 0.8-2.0 weight % Fe2O3 (total iron), 0-1.25 weight % TiO2, and 0-1.25 weight % CeO2. A polymeric interlayer is provided between the first pane of glass and the second pane of glass. The window assembly exhibits a direct solar transmittance of 55% or less and a total solar transmittance of 65% or less.
    Type: Application
    Filed: March 24, 2022
    Publication date: July 7, 2022
    Applicant: Pilkington Group Limited
    Inventors: Srikanth Varanasi, Martin James Horsley, James Eckhart
  • Publication number: 20220204397
    Abstract: A method of reducing the emissivity of a coated glass article includes the following steps in sequence: (a) forming a coated glass article, the coated glass article comprising a glass substrate and a coating formed on the glass substrate, the coating having a first layer deposited over the glass substrate and a second layer, the second layer being provided between the first layer and the glass substrate, wherein the coated glass article exhibits a first emissivity; and (b) heating the coated glass article in an environment set to a predetermined temperature and for a predetermined period of time. After step (b), the coated glass article exhibits a second emissivity, the second emissivity being less than the first emissivity.
    Type: Application
    Filed: May 20, 2020
    Publication date: June 30, 2022
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: SRIKANTH VARANASI, DAVID ALAN STRICKLER, VIKASH RANJAN
  • Patent number: 11345630
    Abstract: A coated glass article includes a glass substrate and an anti-reflective coating formed over a first major surface of the glass substrate. The anti-reflective coating includes a color suppression interlayer and a first coating layer deposited over the color suppression interlayer. The first coating layer includes tin oxide and a dopant. The dopant includes antimony, molybdenum, or iron. A second coating layer is deposited over the first coating layer. The second coating layer includes an oxide of silicon. The coated glass article exhibits a total visible light transmittance of 70% or more and a film side visible light reflectance of less than 6.0%.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: May 31, 2022
    Assignee: Pilkington Group Limited
    Inventors: Matthew Barrington Mahoney, Neil McSporran, Srikanth Varanasi, Kyle Erik Sword, Jason Michael Shirk
  • Publication number: 20220153635
    Abstract: A glass article includes a glass substrate with a coating formed over the glass substrate. The coating includes a first anti-reflective layer deposited over the glass substrate, the first layer having a refractive index of 1.6 or more and a thickness of less than) ?/(4*n). A second anti-reflective layer is deposited over the first anti-reflective layer, the second anti-reflective layer having a thickness that is greater than the thickness of the first anti-reflective layer and a refractive index that is less than the refractive index of the first anti-reflective layer. The glass article exhibits a total visible light reflectance of less than 6.0%.
    Type: Application
    Filed: March 13, 2020
    Publication date: May 19, 2022
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: JUN NI, SRIKANTH VARANASI
  • Patent number: 11299018
    Abstract: A window assembly includes a first pane of glass. The first pane of glass is chemically strengthened and exhibits a surface compressive stress of 400 MPa or more. A second pane of glass has a first major surface and a second major surface. The second major surface of the second pane of glass and a first major surface of the first pane of glass face each other. The second pane of glass includes 68-74 weight % SiO2, 2-6 weight % MgO, 1-10 weight % CaO, 12-16 weight % Na2O, 0-1 weight % K2O, 0.8-2.0 weight % Fe2O3 (total iron), 0-1.25 weight % TiO2, and 0-1.25 weight % CeO2. A polymeric interlayer is provided between the first pane of glass and the second pane of glass. The window assembly exhibits a direct solar transmittance of 55% or less and a total solar transmittance of 65% or less.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: April 12, 2022
    Assignee: Pilkington Group Limited
    Inventors: Srikanth Varanasi, Martin James Horsley, James Eckhart
  • Patent number: 11124447
    Abstract: A coated glass article includes a glass substrate. A coating is formed over the glass substrate. The coating includes a first inorganic metal oxide layer deposited over a major surface of the glass substrate. The first inorganic metal oxide layer has a refractive index of 1.6 or more. A second inorganic metal oxide layer is deposited over the first inorganic metal oxide layer. The second inorganic metal oxide layer has a refractive index which is less than the refractive index of the first inorganic metal oxide layer. A third inorganic metal oxide layer is deposited over the second inorganic metal oxide layer. The third inorganic metal oxide layer has a refractive index of 2.2 or more and the refractive index of the third inorganic metal oxide layer is greater than the refractive index of the second inorganic metal oxide layer. A fourth inorganic metal oxide layer is deposited over the third inorganic metal oxide layer.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: September 21, 2021
    Assignee: Pilkington Group Limited
    Inventor: Srikanth Varanasi
  • Publication number: 20210155535
    Abstract: A coated glass article includes a glass substrate. A coating is formed on the glass substrate. The coating includes a first coating layer. The first coating layer includes fluorine doped tin oxide. A second coating layer is provided between the glass substrate and the first coating layer. The second coating layer includes silicon dioxide and at least one of phosphorus and boron. The coated glass article exhibits a haze of 2.0% or less.
    Type: Application
    Filed: August 31, 2018
    Publication date: May 27, 2021
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: LILA RAJ DAHAL, DOUGLAS MARTIN NELSON, JUN NI, DAVID ALAN STRICKLER, SRIKANTH VARANASI