Patents by Inventor Pramod K. Sharma

Pramod K. Sharma 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: 20150060444
    Abstract: A glass container and a process for forming an inorganic silica coating on an exterior surface of the glass container to improve one or more surface characteristics of the glass container. A sol-gel solution including a polysilazane and an organic solvent is applied to the exterior surface of the glass container to form a sol-gel coating thereon. The glass container and the sol-gel coating are then exposed to a water vapor-containing environment and heated at a temperature of between 150 degrees Celsius and 600 degrees Celsius to transform the sol-gel coating into an inorganic silica coating. The as-formed silica coating has a hardness of greater than 8.5 GPa and is bonded to the exterior surface of the glass container through a plurality of siloxane bonds.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 5, 2015
    Applicant: Owens-Brockway Glass Container Inc.
    Inventors: Zhongming Wang, Carol A. Click, Michael P. Remington, Pramod K. Sharma, Edward A. Ordway
  • Patent number: 8940396
    Abstract: A glass container and a process for forming a graphene-containing coating on an exterior surface of the glass container to increase the strength of the glass container. A liquid coating composition that includes a physical mixture of a graphene material and a siloxane polymer is applied to the exterior surface of the glass container to form a precursor coating thereon. The glass container and the precursor coating are then cured to form a composite thin film of silica (SiO2) and graphene on the exterior surface of the glass container.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: January 27, 2015
    Inventor: Pramod K. Sharma
  • Patent number: 8916328
    Abstract: There is provided a forming a solution by mixing at least a polymeric silane, a solvent, acetone, acetic acid, and a rheological enhancer, wherein the rheological enhancer may comprise an acrylic latex; and agitating the solution. Also provided are methods of using the same in coated articles, and coated articles themselves.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: December 23, 2014
    Assignee: Guardian Industries Corp.
    Inventor: Pramod K. Sharma
  • Patent number: 8802589
    Abstract: Methods for forming porous anatase titanium dioxide coatings are disclosed. Sol-gel compositions are prepared having at least one porosity agent, are applied to a substrate, and at least one porosity agent is removed. Porous anatase titanium dioxide coatings having at least one of improved antimicrobial properties, self-cleaning properties, hydrophilicity, and/or temperability are also disclosed. Substrates comprising such coatings are also disclosed.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: August 12, 2014
    Assignee: Guardian Industries Corp.
    Inventor: Pramod K. Sharma
  • Publication number: 20140182337
    Abstract: Methods of manufacturing and coating a glass container by applying an aminofunctional silane coating composition to an exterior surface of the glass container, and then curing the silane coating composition to form a crosslinked siloxane coating on the exterior surface of the glass container.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: Owens-Brockway Glass Container Inc.
    Inventors: Pramod K. Sharma, Scott Cooper, Michael P. Remington, JR., Carol A. Click
  • Patent number: 8647652
    Abstract: Methods for preparing silver colloids and silica-coated silver colloids are disclosed. The silver colloids may be prepared by heating a silver-containing solution, combining the heated silver-containing solution with an acid solution, and cooling the combined solutions to form a silver colloid containing silver particles. The silver particles in the silver colloid can further be coated with silica. A method for preparing antimicrobial coatings is also disclosed.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: February 11, 2014
    Assignee: Guardian Industries Corp.
    Inventor: Pramod K Sharma
  • Publication number: 20140001075
    Abstract: A glass container and related methods of manufacturing and coating glass containers. The glass container includes an inorganic-organic hybrid coating over at least a portion of an exterior surface of a glass substrate.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 2, 2014
    Inventors: Michael P. Remington, JR., Pramod K. Sharma, Daniel Baker
  • Publication number: 20140001181
    Abstract: A glass container and related methods of manufacturing and coating glass containers. The glass container includes an inorganic-organic hybrid coating over at least a portion of an exterior surface of a glass substrate.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 2, 2014
    Inventors: Pramod K. Sharma, Carol A. Click
  • Patent number: 8617641
    Abstract: Certain example embodiments of this invention relate to coated articles that include anti-reflective (AR) coatings produced from colloidal silica with variable size particles in formulation, and/or methods of making the same. In certain example embodiments, the AR coatings advantageously exhibit high transmission, high transmission gain with respect to uncoated articles, and high b* values, before and/or after heat treatment. The AR coatings of certain example embodiments may be temperable or otherwise heat treatable (e.g., at temperatures of 500 degrees C. or greater) together with their supporting substrates. In certain example embodiments, the particle size for the colloidal silica is 10-110 nm, and the b* values are at least about 0.8. Certain example embodiments may be used in connection with photovoltaic devices and/or the like.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: December 31, 2013
    Assignee: Guardian Industries Corp.
    Inventors: Pramod K. Sharma, Mark A. Lewis
  • Publication number: 20130299378
    Abstract: A glass container and related methods of manufacturing a glass container. A solution having a composition including a silane, a solvent, a catalyst, and water, is applied to an exterior glass surface of the glass container, at a temperature between 40 and 60 degrees Celsius, such that the solution at least partially fills the surface imperfections. The glass container is heated at a temperature greater than 500 degrees Celsius to produce Si—O—Si bonds with the exterior glass surface of the glass container to result in a coating having between 10% and 20% silicate-based material by weight.
    Type: Application
    Filed: May 9, 2012
    Publication date: November 14, 2013
    Inventors: Pramod K. Sharma, Carol A. Click
  • Patent number: 8545899
    Abstract: Methods for forming surface roughened titanium dioxide coatings are disclosed. Sol-gel compositions may be prepared having colloidal metal oxide particles and/or colloidal silica particles, formed on a substrate, and subsequently the coated substrate may be heated at a temperature sufficient to form a surface roughened anatase titanium dioxide coating. Surface roughened titanium dioxide coatings having at least one of improved antimicrobial properties, self-cleaning properties, hydrophilicity, and/or activation time are also disclosed. Substrates comprising such coatings are also disclosed.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: October 1, 2013
    Assignee: Guardian Industries Corp.
    Inventor: Pramod K. Sharma
  • Patent number: 8450600
    Abstract: A method of making an anti-reflection coating using a sol-gel process, for use in a photovoltaic device or the like. The method may include the following steps in certain example embodiments: forming a polymeric component of silica by mixing silane(s) with one or more of a first solvent, a catalyst, and water; forming a silica sol gel by mixing the polymeric component with a colloidal silica, and optionally a second solvent; forming a metal oxide sol by mixing silane(s) with a metal oxide, a second catalyst, and a third solvent; forming a combined sol by mixing the metal oxide sol with the silica sol; casting the mixture by spin coating or the like to form a silica and metal oxide containing layer on a substrate; and curing and/or heat treating the layer. This layer may make up all or only part of an anti-reflection coating which may be used in a photovoltaic device or the like.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: May 28, 2013
    Assignee: Guardian Industries Corp.
    Inventor: Pramod K. Sharma
  • Patent number: 8319095
    Abstract: A low-index silica coating may be made by forming silica sol comprising a silane and/or a colloidal silica. The silica precursor may be deposited on a substrate (e.g., glass substrate) to form a coating layer. The coating layer may then be cured and/or fired using temperature(s) of from about 550 to 700° C. A capping layer composition comprising an antifog composition including a siloxane and/or hydrofluororether may be formed, deposited on the coating layer, then cured and/or fired to form a capping layer The capping layer improves the durability of the coating. The low-index silica based coating may be used as an antireflective (AR) film on a front glass substrate of a photovoltaic device (e.g., solar cell) or any other suitable application in certain example instances.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: November 27, 2012
    Assignee: Guardian Industries Corp.
    Inventor: Pramod K. Sharma
  • Publication number: 20120217181
    Abstract: A glass container and related methods of manufacturing and coating glass containers. The glass container includes a hybrid sol-gel cross-linked on at least a portion of an exterior glass surface of the glass container.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 30, 2012
    Inventors: Carol A. Click, Pramod K. Sharma
  • Patent number: 8237047
    Abstract: A method of making an anti-reflection coating using a sol-gel process, for use in a photovoltaic device or the like. The method may include the following steps in certain example embodiments: forming a polymeric component of silica by mixing silane(s) with one or more of a first solvent, a catalyst, and water; forming a silica sol gel by mixing the polymeric component with a colloidal silica, and optionally a second solvent; forming a combined sol by mixing siloxane(s) with the silica sol; casting the mixture by spin coating or the like to form a silica and siloxane containing layer on a substrate; and curing and/or heat treating the layer. This layer may make up all or only part of an anti-reflection coating which may be used in a photovoltaic device or the like.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: August 7, 2012
    Assignee: Guardian Industries Corp.
    Inventor: Pramod K. Sharma
  • Publication number: 20120114842
    Abstract: Certain example embodiments relate to articles supporting photocatalytic layers that also include UV-reflecting unclerlayers, and/or methods of making the same. In certain example embodiments, the inclusion of a UV-reflecting underlayer surprisingly and unexpectedly results in the reduction of dosing time to enable quick activation of the photocatalytic coating. For example, dosing time may be reduced from a few hours to a few minutes or even seconds in certain example embodiments. The UV-reflecting underlayer may be a single-layer coating or a multi-layer stack.
    Type: Application
    Filed: January 12, 2012
    Publication date: May 10, 2012
    Applicant: Guardian Industries Corp.
    Inventors: Pramod K. SHARMA, Nathan P. MELLOTT
  • Patent number: 8114472
    Abstract: A method of making an antiglare coating using a mullite sol, possibly for use in a plasma display device, a photovoltaic device, or the like. The method may include the following steps in certain example embodiments: forming a mullite sol by mixing glycycloxypropyltrimethoxysilane (or other suitable silane) with an aluminum chloride (or other suitable aluminum-containing compound), and one or more of a solvent and water; casting the mixture by spin coating to form a layer on a substrate (e.g., a glass substrate); and curing and/or heat treating the layer. This layer may make up all or only part of an antiglare coating.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: February 14, 2012
    Assignee: Guardian Industries Corp.
    Inventor: Pramod K. Sharma
  • Patent number: 8110297
    Abstract: Certain example embodiments relate to articles supporting photocatalytic layers that also include UV-reflecting underlayers, and/or methods of making the same. In certain example embodiments, the inclusion of a UV-reflecting underlayer surprisingly and unexpectedly results in the reduction of dosing time to enable quick activation of the photocatalytic coating. For example, dosing time may be reduced from a few hours to a few minutes or even seconds in certain example embodiments. The UV-reflecting underlayer may be a single-layer coating or a multi-layer stack.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: February 7, 2012
    Assignee: Guardian Industries Corp.
    Inventors: Pramod K. Sharma, Nathan P. Mellott
  • Patent number: 7951426
    Abstract: Methods of making hydrophilic coatings having anti-fog properties, and hydrophilic articles are provided. In certain example instances, a substrate supports a surfactant and polyethylenimine. The method includes forming a polyethylenimine-solvent mixture; applying a surfactant to a surface of the substrate; and applying the polyethylenimine-solvent mixture to the dried surfactant on the surface of the substrate. After drying or curing, the resulting coating may be hydrophilic thereby allowing water or the like to easily shed therefrom (e.g., providing anti-fog properties).
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: May 31, 2011
    Assignee: Guardian Industries Corp.
    Inventor: Pramod K. Sharma
  • Publication number: 20110108101
    Abstract: Certain example embodiments of this invention relate to coated articles that include anti-reflective (AR) coatings produced from colloidal silica with variable size particles in formulation, and/or methods of making the same. In certain example embodiments, the AR coatings advantageously exhibit high transmission, high transmission gain with respect to uncoated articles, and high b* values, before and/or after heat treatment. The AR coatings of certain example embodiments may be temperable or otherwise heat treatable (e.g., at temperatures of 500 degrees C. or greater) together with their supporting substrates. In certain example embodiments, the particle size for the colloidal silica is 10-110 nm, and the b* values are at least about 0.8. Certain example embodiments may be used in connection with photovoltaic devices and/or the like.
    Type: Application
    Filed: November 12, 2009
    Publication date: May 12, 2011
    Inventors: Pramod K. Sharma, Mark A. Lewis