Patents by Inventor Paul A. Medwick

Paul A. Medwick 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).

  • Patent number: 7998602
    Abstract: An appliance transparency includes a first substrate defining a No. 1 and a No. 2 surface and a second substrate spaced from the first substrate and defining a No. 3 and a No. 4 surface. A first coating is deposited over at least a portion of the No. 2 surface and is free of metallic layers. A second coating is deposited over at least a portion of the No. 4 surface and has at least one metallic layer. A protective coating is deposited over at least a portion of the second coating.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: August 16, 2011
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Paul A. Medwick, Andrew V. Wagner, James P. Thiel
  • Patent number: 7910229
    Abstract: A coated article is provided for use in an IG unit. The article includes a substrate and a coating formed over at least a portion of the substrate. The coating includes a plurality of separation layers having one or more dielectric layers and a plurality of infrared reflective layers. The coating can be positioned on the #2 or #3 surface of the IG unit and can provide a reference solar heat gain coefficient of less than or equal to 0.35.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: March 22, 2011
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Paul A. Medwick, Andrew V. Wagner, Dennis J. O'Shaughnessy
  • Publication number: 20100173141
    Abstract: A method of making an article that exhibits a metallic appearance includes treating a surface of a non-metallic substrate, e.g. a glass sheet to have a textured surface, and applying an overlay, e.g. a coating over the pattern. The percent of visible light transmittance, and percent visible light reflectance, of the substrate and the overlay is selected such that the pattern is visible when the article is viewed through one of the surfaces of the substrate or overlay. Also provided is a heatable coating having a low emissivity that can be used as the overlay.
    Type: Application
    Filed: March 18, 2010
    Publication date: July 8, 2010
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: Paul A. Medwick, James P. Thiel, Gary J. Marietti
  • Patent number: 7736750
    Abstract: An article includes a substrate, e.g. a glass sheet having a first major surface and an opposite second major surface having a textured surface to provide a predetermined pattern on the second surface of the substrate, and an overlay, e.g. a coating over the pattern. The percent of visible light transmittance, and percent visible light reflectance, of the substrate and the overlay is selected such that the pattern is visible when the article is viewed through one of the surfaces of the substrate or overlay. In one non-limiting embodiment, the substrate is glass and the article has a metallic appearance. In another non-limiting embodiment, the overlay is a transparent coating deposited on the second surface of the glass sheet into grooves of the pattern. Other non-limiting embodiments include the substrate having a Delta % haze of greater than 15%, and a protective overcoat over the coating.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: June 15, 2010
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Paul A. Medwick, James P. Thiel, Gary J. Marietti
  • Publication number: 20090233071
    Abstract: A reflective article, such as a solar mirror, includes a highly transparent substrate having a first major surface and a second major surface. At least one reflective coating is formed over at least a portion of one of the surfaces, e.g., the second major surface (or, alternatively, the first major surface). The reflective coating includes at least one metallic layer. An encapsulation structure can be formed over at least a portion of the second reflective coating.
    Type: Application
    Filed: December 9, 2008
    Publication date: September 17, 2009
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: Paul A. Medwick, Andrew V. Wagner, Gary J. Marietti
  • Publication number: 20090233106
    Abstract: A reflective article, such as a solar mirror, includes a highly transparent substrate having a first major surface and a second major surface. At least one reflective coating is formed over at least a portion of one of the surfaces, e.g., the second major surface (or, alternatively, the first major surface). The reflective coating includes at least one metallic layer. An encapsulation structure can be formed over at least a portion of the second reflective coating.
    Type: Application
    Filed: December 9, 2008
    Publication date: September 17, 2009
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: Paul A. Medwick, Andrew V. Wagner, Gary J. Marietti
  • Publication number: 20090233037
    Abstract: A reflective article, such as a solar mirror, includes a highly transparent substrate having a first major surface and a second major surface. At least one reflective coating is formed over at least a portion of one of the surfaces, e.g., the second major surface (or, alternatively, the first major surface). The reflective coating includes at least one metallic layer. An encapsulation structure can be formed over at least a portion of the second reflective coating.
    Type: Application
    Filed: December 9, 2008
    Publication date: September 17, 2009
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: Paul A. Medwick, Andrew V. Wagner, Gary J. Marietti
  • Publication number: 20090197097
    Abstract: An appliance transparency includes a first substrate defining a No. 1 and a No. 2 surface and a second substrate spaced from the first substrate and defining a No. 3 and a No. 4 surface. A first coating is deposited over at least a portion of the No. 2 surface and is free of metallic layers. A second coating is deposited over at least a portion of the No. 4 surface and has at least one metallic layer. A protective coating is deposited over at least a portion of the second coating.
    Type: Application
    Filed: August 7, 2008
    Publication date: August 6, 2009
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: Paul A. Medwick, Andrew V. Wagner, James P. Thiel
  • Publication number: 20090142602
    Abstract: A transparency includes a substrate having a first major surface and a second major surface. A first coating is provided over at least a portion of the first major surface, the first coating including one or more metal oxide layers. A second coating is provided over at least a portion of the second major surface, the second coating including one or more metallic layers.
    Type: Application
    Filed: June 6, 2008
    Publication date: June 4, 2009
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: Paul A. Medwick, James P. Thiel, Andrew V. Wagner
  • Publication number: 20080145661
    Abstract: An article includes a substrate, e.g. a glass sheet having a first major surface and an opposite second major surface having a textured surface to provide a predetermined pattern on the second surface of the substrate, and an overlay, e.g. a coating over the pattern. The percent of visible light transmittance, and percent visible light reflectance, of the substrate and the overlay is selected such that the pattern is visible when the article is viewed through one of the surfaces of the substrate or overlay. In one non-limiting embodiment, the substrate is glass and the article has a metallic appearance. In another non-limiting embodiment, the overlay is a transparent coating deposited on the second surface of the glass sheet into grooves of the pattern. Other non-limiting embodiments include the substrate having a Delta % haze of greater than 15%, and a protective overcoat over the coating.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 19, 2008
    Inventors: Paul A. Medwick, James P. Thiel, Gary J. Marietti
  • Patent number: 7329433
    Abstract: The present invention provides a method of making a coated article, including the steps of: (A) providing a substrate; (B) depositing one or more dielectric layers over the substrate, the dielectric layers comprising: (i) a first dielectric film having at least one film of zinc oxide, silicon oxide, tin oxide, silicon nitride, silicon oxynitrate, or an oxide of an alloy of zinc and tin having zinc in a weight percent range of 10 to 90 and tin in a weight percent range of 90 to 10, and (ii) a second dielectric film deposited over the first dielectric film, the second dielectric film having at least: a zinc oxide, tin oxide film, wherein the zinc oxide, tin oxide film has tin in a weight percent range of greater than 0 to less than 10 and the majority of the balance being zinc; and (C) depositing one or more infrared reflective layers on at least one of the dielectric layers.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: February 12, 2008
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Dennis J. O'Shaughnessy, James J. Finiey, Paul A. Medwick
  • Publication number: 20070116967
    Abstract: A coated article is provided for use in an IG unit. The article includes a substrate and a coating formed over at least a portion of the substrate. The coating includes a plurality of separation layers having one or more dielectric layers and a plurality of infrared reflective layers. The coating can be positioned on the #2 or #3 surface of the IG unit and can provide a reference solar heat gain coefficient of less than or equal to 0.35.
    Type: Application
    Filed: September 11, 2006
    Publication date: May 24, 2007
    Inventors: Paul Medwick, Andrew Wagner, Dennis O'Shaughnessy
  • Publication number: 20070116965
    Abstract: A coated substrate is disclosed. The coated substrate includes a substrate; a first dielectric layer overlying the substrate having a total thickness greater than 290 ?; a first infrared-reflective metal layer having a thickness ranging from 100 ? to 130 ? overlying the first dielectric layer; a first primer layer having a thickness ranging from 0.5 ? to 60 ? overlying the first infrared-reflective metal layer; a second dielectric layer overlying the first primer layer having a total thickness ranging from 680 ? to 870 ?; a second infrared-reflective metal layer having a thickness ranging from 115 ? to 150 ? overlying the second dielectric layer; a second primer layer having a thickness ranging from 0.5 ? to 60 ? overlying the second dielectric layer; and a third dielectric layer having a total thickness ranging from 190 ? to 380 ? overlying the second primer layer.
    Type: Application
    Filed: September 8, 2006
    Publication date: May 24, 2007
    Inventors: Paul Medwick, Andrew Wagner
  • Publication number: 20070036989
    Abstract: The present invention is directed to a low emissivity, low shading coefficient, low reflectance multi-layer coating and coated article having a visible light transmittance of greater than about 50%, preferably greater than about 55%, a shading coefficient of less than about 0.33 and en exterior reflectance of less than about 30%. The coated article, e.g. an IG unit, has a substrate with a first antireflective layer deposited over the substrate. A first infrared reflective layer is deposited over the first antireflective layer and a first primer layer is deposited over the first infrared reflective layer. A second antireflective layer is deposited over the first primer layer and a second infrared reflective layer is deposited over the second antireflective layer.
    Type: Application
    Filed: July 31, 2006
    Publication date: February 15, 2007
    Inventors: Paul Medwick, Russell Criss, Mehran Arbab, James Finley, Denvra Criss
  • Publication number: 20070009747
    Abstract: The present invention is directed to a low emissivity, low shading coefficient, multi-layer coating and coated article having a luminous transmission of less than about 70 percent, a shading coefficient less than about 0.44 and a solar heat gain coefficient of less than about 0.38 and a ratio of luminous transmittance to solar heat gain coefficient of greater than about 1.85. The coated article, e.g. an IG unit, has a substrate with at least one antireflective layer deposited over the substrate. At least one infrared reflective layer is deposited over the antireflective layer and at least one primer layer is deposited over the infrared reflective layer. Optionally a second antireflective layer is deposited over the first primer layer and optionally a second infrared reflective layer is deposited over the second antireflective layer.
    Type: Application
    Filed: June 19, 2006
    Publication date: January 11, 2007
    Inventors: Paul Medwick, Russell Criss, Denvra Criss, Mehran Arbab, James Finley
  • Publication number: 20060029754
    Abstract: A coated substrate is disclosed. The coated substrate includes a substrate; a first dielectric layer overlying the substrate having a total thickness greater than 290 ?; a first infrared-reflective metal layer having a thickness ranging from 100 ? to 130 ? overlying the first dielectric layer; a first primer layer having a thickness ranging from 0.5 ? to 60 ? overlying the first infrared-reflective metal layer; a second dielectric layer overlying the first primer layer having a total thickness ranging from 680 ? to 870 ?; a second infrared-reflective metal layer having a thickness ranging from 115 ? to 150 ? overlying the second dielectric layer; a second primer layer having a thickness ranging from 0.5 ? to 60 ? overlying the second dielectric layer; and a third dielectric layer having a total thickness ranging from 190 ? to 380 ? overlying the second primer layer.
    Type: Application
    Filed: August 5, 2004
    Publication date: February 9, 2006
    Inventors: Paul Medwick, Andrew Wagner
  • Publication number: 20050155695
    Abstract: The present invention provides a method of making a coated article, including the steps of: (A) providing a substrate; (B) depositing one or more dielectric layers over the substrate, the dielectric layers comprising: (i) a first dielectric film having at least one film of zinc oxide, silicon oxide, tin oxide, silicon nitride, silicon oxynitrate, or an oxide of an alloy of zinc and tin having zinc in a weight percent range of 10 to 90 and tin in a weight percent range of 90 to 10, and (ii) a second dielectric film deposited over the first dielectric film, the second dielectric film having at least: a zinc oxide, tin oxide film, wherein the zinc oxide, tin oxide film has tin in a weight percent range of greater than 0 to less than 10 and the majority of the balance being zinc; and (C) depositing one or more infrared reflective layers on at least one of the dielectric layers.
    Type: Application
    Filed: December 20, 2004
    Publication date: July 21, 2005
    Inventors: Dennis O'Shaughnessy, James Finley, Paul Medwick
  • Patent number: 6899953
    Abstract: Tin is added to a zinc cathode target to enhance the sputter efficiency of the target. Films deposited using the cathode, e.g., greater than zero but less than 10 weight percent tin and greater than 90 but less than 100 weight percent zinc improve the chemical durability of a high transmittance, low emissivity coating stack over coating stacks having zinc oxides without tin oxide. High transmittance, low emissivity coating stacks are heated with the heated coating having reduced haze by selecting the thickness of metal primer layer between an infrared reflective film, e.g. a silver film and a dielectric film, e.g., a 52-48 zinc stannate, zinc oxide, tin oxide film or a zinc oxide film. Also disclosed are enhancing films that lower the resistivity of silver films deposited thereon and improve chemical durability of the coating stack.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: May 31, 2005
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Dennis J. O'Shaughnessy, James J Finley, Paul A. Medwick
  • Patent number: 6849328
    Abstract: A method and coating are provided for temporarily protecting a substrate or article during shipping, handling or storage by applying a removable protective coating over at least a portion of the substrate. The substrate may be flat or curved and may have zero, one or more functional coatings. A plurality of substrates with the protective coating of the invention may be arranged in a shipping container so that the protective coating reduces the possibility of damage to the substrate or optional functional coating. In one embodiment, the protective coating is the evaporation or reaction product of an aqueous coating composition containing a polyvinyl alcohol polymer which may be subsequently removed by aqueous washing, thermal decomposition or combustion. In another embodiment, the protective coating is formed by sputtering a substantially carbon coating onto the substrate. The carbon coating is subsequently removed by combustion.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: February 1, 2005
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Paul A. Medwick, Erin Goodreau, Ernest L. Lawton, James J. Finley, George M. Martin, James P. Thiel, Gary J. Marietti, Roger L. Scriven
  • Patent number: 6682773
    Abstract: A method and coating are provided for temporarily protecting a substrate or article during shipping, handling or storage by applying a removable protective coating over at least a portion of the substrate. The substrate may be flat or curved and may have zero, one or more functional coatings. A plurality of substrates with the protective coating of the invention may be arranged in a shipping container so that the protective coating reduces the possibility of damage to the substrate or optional functional coating. In one embodiment, the protective coating is the evaporation or reaction product of an aqueous coating composition containing a polyvinyl alcohol polymer which may be subsequently removed by aqueous washing, thermal decomposition or combustion. In another embodiment, the protective coating is formed by sputtering a substantially carbon coating onto the substrate. The carbon coating is subsequently removed by combustion.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: January 27, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Paul A. Medwick, Erin Goodreau, Ernest L. Lawton, James J. Finley, George M. Martin, James P. Thiel, Gary J. Marietti, Roger L. Scriven