Patents by Inventor Hari Parvatareddy

Hari Parvatareddy 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: 20220355583
    Abstract: This invention relates to packaging applications. It generally relates to polyethylene or ethylene/?-olefin copolymer based co-extruded, multi-layer films or sheets—rigid or flexible—for thermoforming into shaped containers such as packaging containers. Inter alia, the films have improved barrier properties, toughness, and snapability. Particularly, the films of the present invention comprise one or more stacks of polypropylene layers, wherein at least one stack comprises nucleating agents. In one embodiment, the polypropylene layers in the stack are provided such that any two adjacent layers have different microstructures that provide a interface or interphase between the two layers with likely different microstructures and/or crystallinity. The overall polypropylene stack structure assists in disrupting the transport of oxygen, thereby providing a laminate or structure, for example a rigid film or sheet, with enhanced oxygen-barrier properties.
    Type: Application
    Filed: May 5, 2022
    Publication date: November 10, 2022
    Inventors: Hari Parvatareddy, Jimmy A. Shah
  • Publication number: 20220212389
    Abstract: This invention generally relates to polyethylene or ethylene/?-olefin copolymer based co-extruded, multi-layer films or sheets—rigid or flexible—for thermoforming into shaped containers such as packaging containers. Inter alia, the rigid films have improved barrier properties, toughness, and snapability. Particularly, the films of the present invention comprise one or more stacks of polypropylene layers. In one embodiment, the polypropylene layers in the stack are provided such that any two adjacent layers have different microstructures that provide a interface or interphase between the two layers with likely different microstructures and/or crystallinity. The overall polypropylene stack structure assists in disrupting the transport of oxygen, thereby providing a laminate or structure, for example a rigid film or sheet, with enhanced oxygen-barrier properties.
    Type: Application
    Filed: August 16, 2021
    Publication date: July 7, 2022
    Inventors: Jimmy A. Shah, Hari Parvatareddy
  • Patent number: 8609751
    Abstract: The instant invention generally provides polymer microfiller composite comprising a molecularly self-assembling material and a microfiller, and a process of making and an article comprising the polymer microfiller composite.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: December 17, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Jerry E. White, Hari Parvatareddy, Felix Achille, Leonardo C. Lopez, Rudolf J. Koopmans, Rene Broos, Steven R. Lakso
  • Publication number: 20130034721
    Abstract: A roofing system comprising a thermal insulation foam layer which is applied onto a roof deck, and a mortar layer, wherein the thermal insulation foam layer is between the roof deck and the mortar layer. The mortar layer is made of a mortar composition, which could achieve the ratio of compressive strength to bending strength is less than 3 while keeping the bending strength larger than 7 MPa.
    Type: Application
    Filed: April 21, 2010
    Publication date: February 7, 2013
    Inventors: Yanyan Wang, Wulong X. Xu, Liang Zhang, Loganathan Ravisanker, Hari Parvatareddy
  • Publication number: 20110154764
    Abstract: A composite structure comprising an extruded polystyrene layer, a mortar layer and a primer layer, wherein at least one surface of the extruded polystyrene layer is planed, and the mortar layer is made from a mortar composition comprising re-dispersible powder, cellulose ether, one or more viscosity modification agents, one or more hydraulic binders, and one or more aggregates. A method of making such a composite structure.
    Type: Application
    Filed: September 22, 2008
    Publication date: June 30, 2011
    Applicant: CAmtek Ltd.
    Inventors: XiaoMing Simon Wang, Hari Parvatareddy, WuLong Hunter Xu, Jing Jeffery Li
  • Publication number: 20100137478
    Abstract: The instant invention generally provides polymer microfiller composite comprising a molecularly self-assembling material and a microfiller, and a process of making and an article comprising the polymer microfiller composite.
    Type: Application
    Filed: November 20, 2009
    Publication date: June 3, 2010
    Inventors: Jerry E. White, Hari Parvatareddy, Felix Achille, Leonardo C. Lopez, Rudolf J. Koopmans, Rene Broos, Scott T. Matteucci, Steven R. Lakso