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: 20210130229
    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: Application
    Filed: August 31, 2018
    Publication date: May 6, 2021
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: LILA RAJ DAHAL, DOUGLAS MARTIN NELSON, JUN NI, DAVID ALAN STRICKLER, SRIKANTH VARANASI
  • Publication number: 20210122423
    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: Application
    Filed: October 21, 2020
    Publication date: April 29, 2021
    Inventors: Aria Ravantab, Fredrik Övgård, Srikanth Varanasi, Sven Ström, Krister Amundsson
  • Patent number: 10780673
    Abstract: A light emitting diode display is described including inner and outer panes of glass. The inner pane of glass has first and second major surfaces wherein a visible light reflection from the second major surface is 7.6% or less. The outer pane of glass is in a parallel relationship with the inner pane of glass. One or more light emitting diodes (LEDs) and at least one (a first) interlayer is provided between the inner and outer panes of glass. The first interlayer encapsulates the one or more LEDs. A conductive coating may be formed over the first major surface of the inner pane of glass and at least one (a first) of the one or more LEDs may be provided on the conductive coating, the first light emitting diode being in electrical communication with the conductive coating. The conductive coating may be transparent to visible light.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: September 22, 2020
    Assignee: Pilkington Group Limited
    Inventors: Srikanth Varanasi, Neil McSporran
  • Publication number: 20200262748
    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: October 5, 2018
    Publication date: August 20, 2020
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: SRIKANTH VARANASI, NEIL MCSPORRAN, MATTHEW BARRINGTON MAHONEY
  • Publication number: 20200156448
    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: July 27, 2018
    Publication date: May 21, 2020
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: SRIKANTH VARANASI, MARTIN JAMES HORSLEY, JAMES ECKHART
  • Publication number: 20200123047
    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: Application
    Filed: April 5, 2018
    Publication date: April 23, 2020
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: MATTHEW BARRINGTON MAHONEY, NEIL MCSPORRAN, SRIKANTH VARANASI, KYLE ERIK SWORD, JASON MICHAEL SHIRK
  • Patent number: 10377664
    Abstract: A coated glass article including a glass substrate and a coating deposited over the glass substrate. The coating includes a first inorganic metal oxide layer deposited over a major surface of the glass substrate. A second inorganic metal oxide layer is deposited over the first inorganic metal oxide layer. A third inorganic metal oxide layer is deposited over the second inorganic metal oxide layer. A fourth inorganic metal oxide layer is deposited over the third inorganic metal oxide layer. The coated glass article exhibits a total visible light transmittance (Illuminant C) of 40% or more and a visible light reflectance (Illuminant C) of 30% or more.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: August 13, 2019
    Assignee: Pilkington Group Limited
    Inventor: Srikanth Varanasi
  • Publication number: 20190134952
    Abstract: A light emitting diode display is described including inner and outer panes of glass. The inner pane of glass has first and second major surfaces wherein a visible light reflection from the second major surface is 7.6% or less. The outer pane of glass is in a parallel relationship with the inner pane of glass. One or more light emitting diodes (LEDs) and at least one (a first) interlayer is provided between the inner and outer panes of glass. The first interlayer encapsulates the one or more LEDs. A conductive coating may be formed over the first major surface of the inner pane of glass and at least one (a first) of the one or more LEDs may be provided on the conductive coating, the first light emitting diode being in electrical communication with the conductive coating. The conductive coating may be transparent to visible light.
    Type: Application
    Filed: April 7, 2017
    Publication date: May 9, 2019
    Inventors: SRIKANTH VARANASI, NEIL MCSPORRAN
  • Patent number: 10151861
    Abstract: A coated glass article includes a coating formed over a glass substrate. The coating comprises an optional base layer of an oxide of silicon, a first coating layer of an oxide of titanium, niobium or chromium, a second coating layer of an oxide of silicon, and a third coating layer of an oxide of tin. The coated glass article exhibits a Tvis of 40%-55% and an Rf of 40%-60%. A video display can be mounted behind the coated glass article, such that when the video display is in operation it is visible through the coated glass article and when the video display is not in operation is it concealed by the coated glass article.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: December 11, 2018
    Assignee: Pilkington Group Limited
    Inventor: Srikanth Varanasi
  • Patent number: 10101503
    Abstract: A coated glass article includes a glass substrate and a coating 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 1.8 or more. The coating also includes a second inorganic metal oxide layer deposited over the first inorganic metal oxide layer. The second inorganic metal oxide layer has a refractive index of 1.6 or less. The coated glass article exhibits a total visible light reflectance of 6.5% or less.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: October 16, 2018
    Assignee: Pilkington Group Limited
    Inventor: Srikanth Varanasi
  • Patent number: 10042089
    Abstract: A coated glass article includes a glass substrate and a pyrolytic coating deposited 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 includes titanium dioxide or tin oxide, has a refractive index of 1.8 or more, and is deposited at a thickness of 40 nm or less. A second inorganic metal oxide layer is deposited directly on the first inorganic metal oxide layer. The second inorganic metal oxide layer includes silicon dioxide and has a refractive index of 1.6 or less. A third inorganic metal oxide layer is deposited directly on the major surface of the glass substrate. The third inorganic metal oxide layer comprises silicon dioxide. The first inorganic metal oxide layer is deposited directly on the third inorganic metal oxide layer. The coated glass article exhibits a total visible light reflectance of 6.5% or less.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: August 7, 2018
    Assignee: Pilkington Group Limited
    Inventor: Srikanth Varanasi
  • Patent number: 9957194
    Abstract: The invention relates to a multi-layer pyrolytic coating stack deposited on a tinted glass substrate to form a coated glass article exhibiting a desired combination of emissivity, visible light transmittance and solar heat gain coefficient. A method for depositing the multi-layer coating stack on the tinted glass substrate is also part of the invention.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: May 1, 2018
    Assignee: Pilkington Group Limited
    Inventors: Michel J. Soubeyrand, Srikanth Varanasi
  • Patent number: 9938619
    Abstract: A chemical vapor deposition process for depositing a titanium oxide coating is provided. The chemical vapor deposition process for depositing the titanium oxide coating includes providing a glass substrate. A gaseous mixture is formed. The gaseous mixture includes a titanium-containing compound and a fluorine-containing compound. The titanium-containing compound is an oxygen-containing compound or the gaseous mixture includes a first oxygen-containing compound. The gaseous mixture is directed toward and along the glass substrate. The mixture reacts over the glass substrate to form the titanium oxide coating thereon.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: April 10, 2018
    Assignee: Pilkington Group Limited
    Inventors: Srikanth Varanasi, Jun Ni, Douglas M. Nelson
  • Publication number: 20170355638
    Abstract: A coated glass article including a glass substrate and a coating deposited over the glass substrate. The coating includes a first inorganic metal oxide layer deposited over a major surface of the glass substrate. A second inorganic metal oxide layer is deposited over the first inorganic metal oxide layer. A third inorganic metal oxide layer is deposited over the second inorganic metal oxide layer. A fourth inorganic metal oxide layer is deposited over the third inorganic metal oxide layer. The coated glass article exhibits a total visible light transmittance (Illuminant C) of 40% or more and a visible light reflectance (Illuminant C) of 30% or more.
    Type: Application
    Filed: October 29, 2015
    Publication date: December 14, 2017
    Applicant: PILKINGTON GROUP LIMITED
    Inventor: SRIKANTH VARANASI
  • Patent number: 9776914
    Abstract: A CVD process for depositing a zinc oxide coating is provided. The CVD process includes providing a moving glass substrate. The CVD process also includes forming a gaseous mixture of an alkyl zinc compound and an inert gas as a first stream, providing a first gaseous inorganic oxygen-containing compound in a second stream and providing a second gaseous inorganic oxygen-containing compound in the second stream, a third stream or in both the second and third streams. Additionally, the CVD process includes mixing the streams at or near a surface of the moving glass substrate and a zinc oxide coating is formed thereon. A method for forming a coated glass article is also provided. Additionally, a coated glass article is provided.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: October 3, 2017
    Assignee: Pilkington Group Limited
    Inventors: Yu Wang, Srikanth Varanasi, David Alan Strickler
  • Publication number: 20170204000
    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: Application
    Filed: February 12, 2015
    Publication date: July 20, 2017
    Applicant: PILKINGTON GROUP LIMITED
    Inventor: SRIKANTH VARANASI
  • Publication number: 20170123109
    Abstract: A coated glass article includes a glass substrate and a pyrolytic coating deposited 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 includes titanium dioxide or tin oxide, has a refractive index of 1.8 or more, and is deposited at a thickness of 40 nm or less. A second inorganic metal oxide layer is deposited directly on the first inorganic metal oxide layer. The second inorganic metal oxide layer includes silicon dioxide and has a refractive index of 1.6 or less. A third inorganic metal oxide layer is deposited directly on the major surface of the glass substrate. The third inorganic metal oxide layer comprises silicon dioxide. The first inorganic metal oxide layer is deposited directly on the third inorganic metal oxide layer. The coated glass article exhibits a total visible light reflectance of 6.5% or less.
    Type: Application
    Filed: January 16, 2017
    Publication date: May 4, 2017
    Inventor: Srikanth Varanasi
  • Publication number: 20170010393
    Abstract: A coated glass article includes a coating formed over a glass substrate. The coating comprises an optional base layer of an oxide of silicon, a first coating layer of an oxide of titanium, niobium or chromium, a second coating layer of an oxide of silicon, and a third coating layer of an oxide of tin. The coated glass article exhibits a Tvis of 40%-55% and an Rf of 40%-60%. A video display can be mounted behind the coated glass article, such that when the video display is in operation it is visible through the coated glass article and when the video display is not in operation is it concealed by the coated glass article.
    Type: Application
    Filed: February 10, 2015
    Publication date: January 12, 2017
    Applicant: PILKINGTON GROUP LIMITED
    Inventor: SRIKANTH VARANASI
  • Publication number: 20160124120
    Abstract: A coated glass article includes a glass substrate and a coating 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 1.8 or more. The coating also includes a second inorganic metal oxide layer deposited over the first inorganic metal oxide layer. The second inorganic metal oxide layer has a refractive index of 1.6 or less. The coated glass article exhibits a total visible light reflectance of 6.5% or less.
    Type: Application
    Filed: October 16, 2015
    Publication date: May 5, 2016
    Inventor: Srikanth Varanasi
  • Publication number: 20160076144
    Abstract: A chemical vapor deposition process for depositing a titanium oxide coating is provided. The chemical vapor deposition process for depositing the titanium oxide coating includes providing a glass substrate. A gaseous mixture is formed. The gaseous mixture includes a titanium-containing compound and a fluorine-containing compound. The titanium-containing compound is an oxygen-containing compound or the gaseous mixture includes a first oxygen-containing compound. The gaseous mixture is directed toward and along the glass substrate. The mixture reacts over the glass substrate to form the titanium oxide coating thereon.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 17, 2016
    Inventors: Srikanth Varanasi, Jun Ni, Douglas M. Nelson