Patents by Inventor Rajesh Kumar Varma

Rajesh Kumar Varma 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: 11452249
    Abstract: A carrier for reversibly immobilizing one or more objects is disclosed. The carrier comprises a frame having a major axis, a top surface, a bottom surface, and one or more openings through the frame along the major axis. The carrier also comprises a film comprising a thermoplastic elastomer material and having a top surface and a bottom surface. The film is attached to the frame based on thermal bonding of the top surface of the film to the bottom surface of the frame, is under tension along the major axis, and is free to flex at the openings. The top surface of the film comprises one or more exposed top surface portions that are accessible through the openings. The exposed top surface portions exhibit a holding force on stainless steel as per ASTM D1000 that is greater than that of the bottom surface of the film.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: September 20, 2022
    Assignee: DELPHON INDUSTRIES, LLC
    Inventor: Rajesh Kumar Varma
  • Publication number: 20200352067
    Abstract: A carrier for reversibly immobilizing one or more objects is disclosed. The carrier comprises a frame having a major axis, a top surface, a bottom surface, and one or more openings through the frame along the major axis. The carrier also comprises a film comprising a thermoplastic elastomer material and having a top surface and a bottom surface. The film is attached to the frame based on thermal bonding of the top surface of the film to the bottom surface of the frame, is under tension along the major axis, and is free to flex at the openings. The top surface of the film comprises one or more exposed top surface portions that are accessible through the openings. The exposed top surface portions exhibit a holding force on stainless steel as per ASTM D1000 that is greater than that of the bottom surface of the film.
    Type: Application
    Filed: December 5, 2018
    Publication date: November 5, 2020
    Inventor: Rajesh Kumar VARMA
  • Patent number: 10105927
    Abstract: The invention relates generally to carrier materials. More specifically, the present invention relates to silicon-free thermoplastic elastomer (TPE) materials for use in carrier devices. In some embodiments, a textured film to temporarily immobilize a device is provided, characterized in that a surface of the film in contact with the one or more objects is comprised of textured topology.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: October 23, 2018
    Assignee: Delphon Industries, LLC
    Inventors: Rajesh Kumar Varma, Darby Allen Davis, Claudia Leigh Allison
  • Patent number: 10081155
    Abstract: The invention relates generally to carrier materials. More specifically, the present invention relates to silicon-free thermoplastic elastomer (TPE) materials for use in carrier devices. In some embodiments, a textured film to temporarily immobilize a device is provided, characterized in that a surface of the film in contact with the one or more objects is comprised of textured topology.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: September 25, 2018
    Assignee: Delphon Industries, LLC
    Inventors: Rajesh Kumar Varma, Darby Allen Davis, Claudia Leigh Allison
  • Publication number: 20180207904
    Abstract: The invention relates generally to carrier materials. More specifically, the present invention relates to silicon-free thermoplastic elastomer (TPE) materials for use in carrier devices. In some embodiments, a textured film to temporarily immobilize a device is provided, characterized in that a surface of the film in contact with the one or more objects is comprised of textured topology.
    Type: Application
    Filed: March 19, 2018
    Publication date: July 26, 2018
    Inventors: Rajesh Kumar Varma, Darby Allen Davis, Claudia Leigh Allison
  • Patent number: 9931808
    Abstract: The invention relates generally to carrier materials. More specifically, the present invention relates to silicon-free thermoplastic elastomer (TPE) materials for use in carrier devices. In some embodiments, a textured film to temporarily immobilize a device is provided, characterized in that a surface of the film in contact with the one or more objects is comprised of textured topology.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: April 3, 2018
    Assignee: Delphon Industries, LLC
    Inventors: Rajesh Kumar Varma, Darby Allen Davis, Claudia Leigh Allison
  • Patent number: 7056971
    Abstract: A thermoplastic elastomer (“TPE”) which is oxygen-permeable is provided with excellent barrier properties against oxygen by melt-blending with a liquid polyisobutene oil plasticizer in an amount insufficient to render the plasticized elastomer tacky. If made tacky, enough detackifier is used to allow the product to be formed into a removable seal. The TPE may be a conventional thermoplastic vulcanizate or a block copolymer of a vinylaromatic compound, typically styrene, and a conjugated diene, typically butadiene or isoprene, or mixtures thereof; the block may be a diblock, triblock or higher block, but the preferred polyblock copolymer is a triblock with styrene end-blocks and a butadiene/isoprene mid-block. Preferably the diene mid-block is hydrogenated to provide a poly(lower)monoolefin mid-block. When the TPE is a TPV, some or all of the mineral oil used to make the TPV processable may also be substituted with the polyisobutene plasticizer.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: June 6, 2006
    Assignee: GLS Corporation
    Inventor: Rajesh Kumar Varma
  • Publication number: 20020160137
    Abstract: A thermoplastic elastomer (“TPE”) which is oxygen-permeable is provided with excellent barrier properties against oxygen by melt-blending with a liquid polybutene oil plasticizer in an amount insufficient to render the plasticized elastomer tacky. If made tacky, enough detackifier is used to allow the product to be formed into a removable seal. The TPE may be a conventional thermoplastic vulcanizate or a block copolymer of a vinylaromatic compound, typically styrene, and a conjugated diene, typically butadiene or isoprene, or mixtures thereof; the block may be a diblock, triblock or higher block, but the preferred polyblock copolymer is a triblock with styrene end-blocks and a butadiene/isoprene mid-block. Preferably the diene mid-block is hydrogenated to provide a poly(lower)monoolefin mid-block. When the TPE is a TPV, some or all of the mineral oil used to make the TPV processable may also be substituted with the polybutene plasticizer.
    Type: Application
    Filed: February 12, 2002
    Publication date: October 31, 2002
    Inventor: Rajesh Kumar Varma