Patents by Inventor Amitava Gupta

Amitava Gupta 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: 10682298
    Abstract: The present invention relates to a process for preparing an antimicrobial particulate composition. The invention also relates to personal care or hygiene composition comprising an antimicrobial particulate composition obtainable by the process in accordance with this invention. The invention more particularly relates to a process for preparing an antimicrobial metal nanoparticles immobilized in an inorganic porous material and also incorporating these particles in personal care or hygiene compositions. The antimicrobial particulate composition comprises 0.05% to 3% by weight of antimicrobial metal particles and 97 to 99.95% by weight of immobilizer comprising an inorganic porous material selected from zinc oxide, magnesium hydroxide or calcium carbonate.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: June 16, 2020
    Assignee: CONOPCO, INC.
    Inventors: Somnath Das, Satyaranjan Gupta, Rupak Mitra, Girish Muralidharan, Amitava Pramanik
  • Publication number: 20200141904
    Abstract: An acoustic wave biosensor component is provided. The acoustic wave biosensor comprising a piezoelectric substrate with or without 3D matrix microstructure to increase the surface of the effective sensing area and an anchor substance covalently bound to a surface of the piezoelectric substrate, and the anchor substance can bind to a capture reagent. A process for fabricating the 3D biosensor surface and component coating the surface of a piezoelectric material with bioactive film comprising an anchor substance is also provided.
    Type: Application
    Filed: July 5, 2018
    Publication date: May 7, 2020
    Applicant: AVIANA MOLECULAR TECHNOLOGIES, LLC
    Inventors: Soumen Das, John Martin Hamlyn, Amitava Gupta
  • Patent number: 10620459
    Abstract: Wearable electronic devices, for example wearable camera systems, and methods for attaching electronic devices such as camera systems to eyewear or other wearable articles are described.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: April 14, 2020
    Assignee: Pogotec, Inc.
    Inventors: Ronald D. Blum, William Kokonaski, Richard Clompus, Walter Dannhardt, Amitava Gupta, Bobi Arnold, Massimo Pinazza, Claudio Dalla Longa
  • Publication number: 20200012124
    Abstract: A lens comprises an internal cavity structure formed by dissolution of a soluble insert material. The internal soluble material may dissolve through a body of a lens such as a contact lens in order to form the cavity within the contact lens. The cavity within the lens can be shaped in many ways and corresponds to the shape of the dissolved material, such that many internal cavity shapes can be readily fabricated within the contact lens. The insert can be placed in a mold with a pre-polymer material, and the pre-polymer material cured with the insert placed in the mold to form the lens body. The polymerized polymer may comprise a low expansion polymer in order to inhibit expansion of the lens when hydrated. The polymer may comprise a hydrogel when hydrated. The soft contact lens material comprises a sufficient amount of cross-linking to provide structure to the lens and shape the cavity.
    Type: Application
    Filed: May 6, 2019
    Publication date: January 9, 2020
    Applicant: OneFocus Vision, Inc.
    Inventors: Steven B. WAITE, Amitava GUPTA, Gamil ALHAKIMI, Lisa STUDNICKI, Musa ALHAKIMI
  • Publication number: 20190361270
    Abstract: An accommodating contact lens comprises a variable focus optical module, which comprises an optical chamber and one or more eyelid engaging chambers coupled to the optical chamber with one or more extensions comprising channels extending between the optical chamber and the more eyelid engaging chambers. The module may comprise a self-supporting module capable of supporting itself prior to placement in a contact lens to facilitate placement prior to encapsulation in the contact lens. The module may comprise one or more optically transmissive materials, provides improved optical correction, and can be combined with soft contact lens materials such as hydrogels. In many embodiments, the module comprises a support structure extending between an upper membrane and a lower membrane in order to provide variable optical power accurately with decreased amounts distortion and improved responsiveness to eyelid induced pressure.
    Type: Application
    Filed: May 21, 2019
    Publication date: November 28, 2019
    Applicant: OneFocus Technology, LLC
    Inventors: Steven B. WAITE, Amitava GUPTA, Urban SCHNELL
  • Publication number: 20190361269
    Abstract: A meniscus shaped lens module comprises one or more structures that decrease an amount of pressure or force to move one or more surfaces of the lens module and increase a separation distance of anterior and posterior surfaces of the module in order to provide an increase in optical power. A lens structure of the module comprises one or more of a pattern of a surface of a central chamber, a meniscus, a reduced diameter or a soft material in order to provide increased amounts of curvature of an outer contact lens surface with decreased amounts of pressure. The pattern can be formed in one or more of many ways, and may comprise one or more of folds, patterning, bellows or concertinaed surface of an optically transmissive material having a substantially uniform thickness such as a sheet of a membrane material.
    Type: Application
    Filed: April 16, 2019
    Publication date: November 28, 2019
    Applicant: OneFocus Vision, Inc.
    Inventors: Steven B. WAITE, Amitava GUPTA, Urban SCHNELL, Jean-Christophe ROULET, Michel SAINT-GHISLAIN, Stefan TROLLER
  • Publication number: 20190327567
    Abstract: A hearing aid system according to sonic examples includes a hearing aid which includes a microphone, amplifier, speaker, and a telecoil. In some examples, the hearing aid may include a battery or a capacitor for storing power wirelessly received from a distance separated wireless power transfer unit. The telecoil may be configured to receive audio signals and couple the audio signals to audio processing circuitry of the hearing aidL The telecoil may be further configured to receive power signals from the base unit and couple the power signals to power supply circuitry of the hearing aid, for example for charging the battery of the hearing aid. Examples of transmitter and receiver coils, and of distance and orientation optimization are described. Examples of wireless charging systems that may be used with hearing aids or other medical assistance devices are described.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 24, 2019
    Applicant: POGOTEC, INC.
    Inventors: RONALD D. BLUM, WILLIAM KOKONASKI, STEFAN BAUER, JEAN-NOEL FEHR, AMITAVA GUPTA, RICHARD CLOMPUS
  • Publication number: 20190313025
    Abstract: A wearable camera systems according to examples of the present disclosure may include a camera and a mobile charging unit. The camera may include onboard power, memory and control for capturing and storing an image without being connected to the mobile charging unit and the camera body may have a width or a height that is smaller than the length of the camera body. The camera body may include a trigger for initiating image capture. The wearable camera may be attachable to an eyewear temple and the mobile charging unit is configured to recharge the wearable camera without being connected to an external power source.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Applicant: POGOTEC, INC.
    Inventors: RONALD D. BLUM, AMITAVA GUPTA, WILLIAM KOKONASKI, RICHARD CLOMPUS, MASSIMO PINAZZA, CLAUDIO DALLA LONGA, STEFAN BAUER, JEAN-NOEL FEHR, WALTER DANNHARDT
  • Publication number: 20190262243
    Abstract: The present invention relates to a process for preparing an antimicrobial particulate composition. The invention also relates to personal care or hygiene composition comprising an antimicrobial particulate composition obtainable by the process in accordance with this invention. The invention more particularly relates to a process for preparing an antimicrobial metal nanoparticles immobilized in an inorganic porous material and also incorporating these particles in personal care or hygiene compositions. The antimicrobial particulate composition comprises 0.05% to 3% by weight of antimicrobial metal particles and 97 to 99.95% by weight of immobilizer comprising an inorganic porous material selected from zinc oxide, magnesium hydroxide or calcium carbonate.
    Type: Application
    Filed: May 10, 2019
    Publication date: August 29, 2019
    Inventors: Somnath DAS, Satyaranjan GUPTA, Rupak MITRA, Girish MURALIDHARAN, Amitava PRAMANIK
  • Patent number: 10379383
    Abstract: An accommodating contact lens module is provided for use with an accommodating contact lens. Components of the accommodating contact lens module can be manufactured and assembled with low distortion optics to provide improved vision. The module comprises a self-supporting module capable of being grasped by one of the components and placed in a mold without distorting the optical components of the module when placed. The module is compatible with soft contact lens materials, and compatible with soft contact lens manufacturing processes such as molding of hydrogels and silicones. The module may comprise one or more of many components that can be placed in the mold together. These components can be placed in the mold for encapsulation in order to provide accurate optical correction of the eye of the subject, for both far vision and near vision. In many embodiments, the module is inspected prior to placement in the mold.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: August 13, 2019
    Assignee: ONEFOCUS TECHNOLOGY, LLC
    Inventors: Steven B. Waite, Amitava Gupta, Urban Schnell
  • Patent number: 10359679
    Abstract: Devices and methods related generally to electrochromic materials and their use. In some embodiments, the electrochromic materials are for use on an optical substrate, such as a lens, a semi-finished lens blank, and the like. Some embodiments include an electrochromic stack including nanostructured materials. Some embodiments include an electrochromic stack including nanostructured electrochromic materials. Some embodiments include one or more ion-conducting layers. Methods of making electrochromic stacks having nanostructured materials and/or ion-conducting layers are also discussed.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: July 23, 2019
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Anita Trajkovska-Broach, Amitava Gupta, William Kokonaski, Ronald D. Blum
  • Patent number: 10348965
    Abstract: A wearable camera systems according to examples of the present disclosure may include a camera and a mobile charging unit. The camera may include onboard power, memory and control for capturing and storing an image without being connected to the mobile charging unit and the camera body may have a width or a height that is smaller than the length of the camera body. The camera body may include a trigger for initiating image capture. The wearable camera may be attachable to an eyewear temple and the mobile charging unit is configured to recharge the wearable camera without being connected to an external power source.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: July 9, 2019
    Assignee: PogoTec, Inc.
    Inventors: Ronald D. Blum, Amitava Gupta, William Kokonaski, Richard Clompus, Massimo Pinazza, Claudio Dalla Longa, Stefan Bauer, Jean-Noel Fehr, Walter Dannhardt
  • Patent number: 10338411
    Abstract: An accommodating contact lens comprises a variable focus optical module, which comprises an optical chamber and one or more eyelid engaging chambers coupled to the optical chamber with one or more extensions comprising channels extending between the optical chamber and the more eyelid engaging chambers. The module may comprise a self-supporting module capable of supporting itself prior to placement in a contact lens to facilitate placement prior to encapsulation in the contact lens. The module may comprise one or more optically transmissive materials, provides improved optical correction, and can be combined with soft contact lens materials such as hydrogels. In many embodiments, the module comprises a support structure extending between an upper membrane and a lower membrane in order to provide variable optical power accurately with decreased amounts distortion and improved responsiveness to eyelid induced pressure.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: July 2, 2019
    Assignee: OneFocus Technology, LLC
    Inventors: Steven B. Waite, Amitava Gupta, Urban Schnell
  • Patent number: 10341787
    Abstract: A hearing aid system according to some examples includes a hearing aid which includes a microphone, amplifier, speaker, and a telecoil. In some examples, the hearing aid may include a battery or a capacitor for storing power wirelessly received from a distance separated wireless power transfer unit. The telecoil may be configured to receive audio signals and couple the audio signals to audio processing circuitry of the hearing aid. The telecoil may be further configured to receive power signals from the base unit and couple the power signals to power supply circuitry of the hearing aid, for example for charging the battery of the hearing aid. Examples of transmitter and receiver coils, and of distance and orientation optimization are described. Examples of wireless charging systems that may be used with hearing aids or other medical assistance devices are described.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: July 2, 2019
    Assignee: PogoTec, Inc.
    Inventors: Ronald D. Blum, William Kokonaski, Stefan Bauer, Jean-Noel Fehr, Amitava Gupta, Richard Clompus
  • Publication number: 20190179173
    Abstract: A connector assembly comprising a base having an adapter and a retainer, the adapter configured to reversibly couple to a wearable device using a magnet, ferromagnetic material, or combinations thereof; an elastic member partially positioned within the retainer, the elastic member having a first loop portion adjacent a first end of the retainer and a second loop portion adjacent a second end of the retainer; and wherein the elastic member is configured to stretchably move with respect to the base such that, responsive to a force pulling the first loop portion over a portion of an eyewear frame, the second loop portion changes in size.
    Type: Application
    Filed: August 9, 2017
    Publication date: June 13, 2019
    Applicant: POGOTEC, INC.
    Inventors: RONALD D. BLUM, WALTER DANNHARDT, RICHARD CLOMPUS, WILLIAM KOKONASKI, JEAN-NOEL FEHR, STEFAN BAUER, AMITAVA GUPTA
  • Patent number: 10302968
    Abstract: A meniscus shaped lens module comprises one or more structures that decrease an amount of pressure or force to move one or more surfaces of the lens module and increase a separation distance of anterior and posterior surfaces of the module in order to provide an increase in optical power. A lens structure of the module comprises one or more of a pattern of a surface of a central chamber, a meniscus, a reduced diameter or a soft material in order to provide increased amounts of curvature of an outer contact lens surface with decreased amounts of pressure. The pattern can be formed in one or more of many ways, and may comprise one or more of folds, patterning, bellows or concertinaed surface of an optically transmissive material having a substantially uniform thickness such as a sheet of a membrane material.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: May 28, 2019
    Assignee: ONEFOCUS VISION, INC.
    Inventors: Steven B. Waite, Amitava Gupta, Urban Schnell, Jean-Christophe Roulet, Michel Saint-Ghislain, Stefan Troller
  • Publication number: 20190064546
    Abstract: An accommodating contact lens comprises a variable focus optical module, which comprises an optical chamber and one or more eyelid engaging chambers coupled to the optical chamber with one or more extensions comprising channels extending between the optical chamber and the more eyelid engaging chambers. The module may comprise a self-supporting module capable of supporting itself prior to placement in a contact lens to facilitate placement prior to encapsulation in the contact lens. The module may comprise one or more optically transmissive materials, provides improved optical correction, and can be combined with soft contact lens materials such as hydrogels. In many embodiments, the module comprises a support structure extending between an upper membrane and a lower membrane in order to provide variable optical power accurately with decreased amounts distortion and improved responsiveness to eyelid induced pressure.
    Type: Application
    Filed: May 24, 2018
    Publication date: February 28, 2019
    Inventors: Steve B. Waite, Amitava Gupta, Urban Schnell
  • Publication number: 20190048180
    Abstract: A hydrogel formulation has been developed that can be cast to form a hydrophilic cross-linked network with water content of 30-60% by weight that undergoes a volume expansion less than 5% when equilibrated in water or an aqueous solution of ionic species. This hydrogel formulation was used to cast a soft contact lens incorporating an insert that may be a sealed module filled with a fluid. Diameter of lenses cast without an insert measured within 0.5-5.0% of the target diameter after hydration. The interface between the hydrogel and the insert in lenses cast with an insert remaining stress free after hydration, when the lens was inspected under a microscope. The formulation comprises and may consist of a mixture of hydrophilic mono-functional monomers, cross-linking agents, a photo-curing catalyst and a diluent.
    Type: Application
    Filed: May 7, 2018
    Publication date: February 14, 2019
    Inventors: Adam Harant, Neil CRAMER, Amelia DAVENPORT, Steve WAITE, Amitava GUPTA
  • Patent number: 10185163
    Abstract: Wearable electronic devices, for example wearable camera systems, and methods for attaching electronic devices such as camera systems to eyewear or other wearable articles are described.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: January 22, 2019
    Assignee: PogoTec, Inc.
    Inventors: Ronald D. Blum, William Kokonaski, Richard Clompus, Walter Dannhardt, Amitava Gupta, Bobi Arnold, Massimo Pinazza, Claudio Dalla Longa
  • Publication number: 20180333086
    Abstract: An implant includes a first calcium sensor portion and a body portion. The first calcium sensor portion includes a calcium-selective binding portion. The body portion includes a controller configured to process a signal received from the calcium-selective binding portion, and a transmitter/receiver.
    Type: Application
    Filed: November 11, 2016
    Publication date: November 22, 2018
    Applicant: Elenza, Inc.
    Inventor: Amitava Gupta