Patents by Inventor Raghunath Padiyath

Raghunath Padiyath 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: 11414924
    Abstract: In certain embodiments, the present disclosure relates to low emissivity films and articles comprising them. Other embodiments are directed to methods of reducing emissivity in an article comprising the use of low emissivity films. In some embodiments, the low emissivity films comprise a metal layer and a pair of layers, one comprising a metal oxide such as zinc tin oxide and the other layer comprising a silicon compound, adjacent each of the two sides of the metal layer. This type of assembly may serve various purposes, including being used as a sun control film. These constructions may be used, for example, as window films on glazing units for reducing transmission of infrared radiation across the film in both directions.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: August 16, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Raghunath Padiyath, Gregory F. King, Stephen P. Maki
  • Publication number: 20220252772
    Abstract: Infrared reflectors are described. In particular, infrared reflectors with reduced off-axis color are described. Such infrared reflectors may be useful in laminated glass constructions, particularly for applications where the glass may be exposed to water.
    Type: Application
    Filed: April 28, 2022
    Publication date: August 11, 2022
    Inventors: Christopher A. Haak, Timothy J. Nevitt, Kevin M. Hamer, Raghunath Padiyath, Neeraj Sharma, Gregory F. King, William C. Pettit, III, Ronald K. Thery, Richard Yufeng Liu
  • Patent number: 11346987
    Abstract: Infrared reflectors are described. In particular, infrared reflectors with reduced off-axis color are described. Such infrared reflectors may be useful in laminated glass constructions, particularly for applications where the glass may be exposed to water.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: May 31, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Christopher A. Haak, Timothy J. Nevitt, Kevin M. Hamer, Raghunath Padiyath, Neeraj Sharma, Gregory F. King, William C. Pettit, III, Ronald K. Thery, Richard Yufeng Liu
  • Publication number: 20220043195
    Abstract: Infrared reflectors are described. In particular, infrared reflectors with reduced off-axis color are described. Such infrared reflectors may be useful in laminated glass constructions, particularly for applications where the glass may be exposed to water.
    Type: Application
    Filed: March 11, 2020
    Publication date: February 10, 2022
    Inventors: Christopher A. Haak, Timothy J. Nevitt, Kevin M. Hamer, Raghunath Padiyath, Neeraj Sharma, Gregory F. King, William C. Pettit, III, Ronald K. Thery, Richard Yufeng Liu
  • Publication number: 20220019000
    Abstract: The present disclosure relates to articles and methods of sealing light redirecting film constructions comprising a microstructured optical film, such as a daylight redirecting film, bonded to another film. This type of assembly may serve various purposes. For example, the assembly may protect the structured film, provide additional functionality, such as diffusion or infrared reflection, and/or facilitate attachment of the microstructured optical film to a mounting surface, such as a glazing or window pane. The methods for sealing the edge of a light redirecting construction inhibit ingress of water and other contaminants during the film installation and afterwards during its regular use.
    Type: Application
    Filed: July 31, 2017
    Publication date: January 20, 2022
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Raghunath Padiyath, Eric L. Askeland, John F. Reed, Shannon S. Le Blanc, Erik A. Aho, Ronald K. Thery, Manoj Nirmal
  • Publication number: 20210110563
    Abstract: A system for measuring dimensions of film to be applied to a window includes a plurality of removable cards for placement on the window, each of the plurality of removable cards having a plurality of visible correspondence points at pre-defined positions on the respective removable card. The system further includes a mobile device having an image capture device, and the image capture device is configured to capture an image of the window having a set of correspondence points visible in the image. Additionally, the system includes a server configured to receive the image of the window captured by the mobile device and process the image to determine dimensions of a film to be cut for the window based on the set of correspondence points and the pre-defined positions, and processing the image removes perspective distortions in the image. The system is configured to output the dimensions of the film.
    Type: Application
    Filed: May 8, 2019
    Publication date: April 15, 2021
    Inventors: Raghunath Padiyath, Viruru Phaniraj, Jeffrey P. Adolf, Steven P. Floeder
  • Patent number: 10723102
    Abstract: In certain embodiments, the present disclosure relates to low emissivity films and articles comprising them. Other embodiments are directed to methods of reducing emissivity in an article comprising the use of low emissivity films. In some embodiments, the low emissivity films comprise a metal layer and one or more zirconium nitride layers adjacent the metal layer. This type of assembly may serve various purposes, including being used as a sun control film. These constructions may be used, for example, on glazing units for reducing transmission of infrared radiation across the film in both directions.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: July 28, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Raghunath Padiyath, Stephen P. Maki, Robert R. Owings, Gregory F. King
  • Publication number: 20200181975
    Abstract: In certain embodiments, the present disclosure relates to low emissivity films and articles comprising them. Other embodiments are directed to methods of reducing emissivity in an article comprising the use of low emissivity films. In some embodiments, the low emissivity films comprise a metal layer and a pair of layers, one comprising a metal oxide such as zinc tin oxide and the other layer comprising a silicon compound, adjacent each of the two sides of the metal layer. This type of assembly may serve various purposes, including being used as a sun control film. These constructions may be used, for example, as window films on glazing units for reducing transmission of infrared radiation across the film in both directions.
    Type: Application
    Filed: April 12, 2018
    Publication date: June 11, 2020
    Inventors: Raghunath PADIYATH, Gregory F. KING, Stephen P. MAKI
  • Patent number: 10520655
    Abstract: Glazing articles that reduce glare include a glazing substrate, and a reflective polarizing film article attached to the glazing substrate. The reflective polarizing film article includes a reflective polarizing film, and a reflection inhibitor layer. The reflective polarizing film articles reduce transmission of polarized light with a polarization block axis that is horizontal, and reduce horizontally polarized light to 90% or less of the horizontally polarized incident visible light. The reflective polarizing film may include a multi-layer film construction. The reflection inhibitor layer may include a tinted layer or an absorptive polarizer layer. Glazing units that reduce glare include at least one glazing substrate, at least one reflective polarizing film, and at least one reflection inhibitor layer. The glazing substrate, reflective polarizing film, and reflection inhibitor layer may or may not be in contact with one another.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: December 31, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bert T. Chien, Yufeng Liu, Kristopher J. Derks, Raghunath Padiyath, Stephen J. Strauss
  • Patent number: 10151860
    Abstract: The present disclosure relates generally to light management constructions comprising microstructured prismatic elements useful in the preparation of sun-facing light redirecting films having reduced glare.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: December 11, 2018
    Assignee: 3m Innovative Properties Company
    Inventors: Bing Hao, Manoj Nirmal, Charles A. Marttila, Owen M. Anderson, Scott M. Tapio, Erik A. Aho, Raghunath Padiyath, Jonathan F. Mansheim, John F. Reed
  • Patent number: 10088610
    Abstract: Light management constructions contain an optical substrate having a first major surface and a second major surface opposite the first major surface. The first major surface is a microstructured surface with asymmetrical structures. The asymmetrical structures form an ordered arrangement of a plurality of multi-sided refractive prisms, with the multi-sided refractive prisms having a cross section of 4 or greater sides. The light management constructions can be incorporated into optical articles such as windows.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: October 2, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Raghunath Padiyath, Charles A. Marttila, Mark K. Nestegard
  • Patent number: 10072173
    Abstract: A coating composition is disclosed. The coating composition includes a poly(methyl methacrylate) polymer or copolymer having a weight average molecular weight of at least 50,000 grams per mole; monomer comprising at least one of an alkylene diacrylate, alkylene dimethacrylate, cycloalkylene diacrylate, or cycloalkylenedimethacrylate, wherein the at least one of an alkylene diacrylate, alkylene dimethacrylate, cycloalkylene diacrylate, or cycloalkylenedimethacrylate provides at least 80 percent by weight of the monomer; and a stabilizer against ultraviolet light. An article including a coating on a surface of a substrate and a method of making the article are also disclosed. The coating on the surface of the substrate is obtained by curing the disclosed coating composition.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 11, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Susannah C. Clear, Raghunath Padiyath, Garry W. Lachmansingh, Mark A. Strobel, Sonja S. Mackey, Naiyong Jing
  • Patent number: 9945525
    Abstract: Solar light redirecting glazing units include light redirecting and light diffusing constructions. The solar light redirecting glazing units may include a glazing substrate, a visible light diffusing layer, and a light redirecting layer oriented such that incoming solar light contacts the visible light diffusing layer before contacting the light redirecting layer. The solar light redirecting glazing units may include a glazing substrate, a patterned visible light diffusing layer, and a light redirecting layer. The solar light redirecting glazing units may include two glazing substrates separated by an intervening space with a solar light redirecting layer disposed on one glazing substrate, and a visible light diffusing layer disposed on the other glazing substrate.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: April 17, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Raghunath Padiyath, Bing Hao, Charles A. Marttila
  • Publication number: 20180095196
    Abstract: The present disclosure relates generally to light management constructions comprising microstructured prismatic elements useful in the preparation of sun-facing light redirecting films having reduced glare.
    Type: Application
    Filed: October 11, 2017
    Publication date: April 5, 2018
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: BING HAO, MANOJ NIRMAL, CHARLES A. MARTTILA, OWEN M. ANDERSON, SCOTT M. TAPIO, ERIK A. AHO, RAGHUNATH PADIYATH, JONATHAN F. MANSHEIM, JOHN F. REED
  • Publication number: 20180086024
    Abstract: In certain embodiments, the present disclosure relates to low emissivity films and articles comprising them. Other embodiments are directed to methods of reducing emissivity in an article comprising the use of low emissivity films. In some embodiments, the low emissivity films comprise a metal layer and one or more zirconium nitride layers adjacent the metal layer. This type of assembly may serve various purposes, including being used as a sun control film. These constructions may be used, for example, on glazing units for reducing transmission of infrared radiation across the film in both directions.
    Type: Application
    Filed: April 18, 2016
    Publication date: March 29, 2018
    Inventors: Raghunath Padiyath, Stephen P. Maki, Robert R. Owings, Gregory F. King
  • Patent number: 9910192
    Abstract: The present disclosure relates generally to light management constructions comprising microstructured prismatic elements useful in the preparation of room-facing light redirecting films having reduced glare.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: March 6, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Bing Hao, Manoj Nirmal, Charles A. Marttila, Raghunath Padiyath, Jonathan F. Mansheim, Erik A. Aho, Scott M. Tapio, Owen M. Anderson, Eileen M. F. Haus, John F. Reed
  • Patent number: 9903549
    Abstract: The present disclosure is directed on some embodiments to light redirecting constructions comprising a first glazing substrate, a light redirecting film comprising at least one microstructure surface, a second glazing substrate, and a first interlayer bonding the first glazing substrate to both the light redirecting film and the second glazing substrate; wherein the light redirecting film has an area smaller than the area of the first interlayer.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: February 27, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Raghunath Padiyath, Jonathan F. Mansheim, Stephen J. Kuncio
  • Patent number: 9817161
    Abstract: The present disclosure relates generally to light management constructions comprising microstructured prismatic elements useful in the preparation of sun-facing light redirecting films having reduced glare.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: November 14, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bing Hao, Manoj Nirmal, Charles A. Marttila, Owen M. Anderson, Scott M. Tapio, Erik A. Aho, Raghunath Padiyath, Jonathan F. Mansheim, John F. Reed
  • Publication number: 20170248743
    Abstract: The present disclosure relates generally to light management constructions comprising microstructured prismatic elements useful in the preparation of sun-facing light redirecting films having reduced glare.
    Type: Application
    Filed: October 13, 2015
    Publication date: August 31, 2017
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: BING HAO, MANOJ NIRMAL, CHARLES A. MARTTILA, OWEN M. ANDERSON, SCOTT M. TAPIO, ERIK A. AHO, RAGHUNATH PADIYATH, JONATHAN F. MANSHEIM, JOHN F. REED
  • Publication number: 20170248741
    Abstract: The present disclosure relates generally to light management constructions comprising microstructured prismatic elements useful in the preparation of room-facing light redirecting films having reduced glare.
    Type: Application
    Filed: October 16, 2015
    Publication date: August 31, 2017
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: BING HAO, MANOJ NIRMAL, CHARLES A. MARTTILA, RAGHUNATH PADIYATH, JONATHAN F. MANSHEIM, ERIK A. AHO, SCOTT M. TAPIO, OWEN M. ANDERSON, EILEEN M. F. HAUS, JOHN F. REED