Patents by Inventor Rajeev Chauhan

Rajeev Chauhan 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: 20240017445
    Abstract: The present invention relates to an extrusion process for preparing a low molecular weight PTFE micropowder, comprising the steps of: introducing a PTFE composition into a extruder; applying heat treatment to the extruder; extruding the PTFE composition in an extruder to reduce molecular weight through heat and shear force; cooling and pelletizing in a pelletizer to form granules of PTFE; and reducing the particle size of PTFE granules by milling method to form low molecular weight PTFE micropowder. The present invention also relates to an extrusion process for degradation of high molecular weight PTFE to produce low molecular weight Polytetrafluoroethylene micropowder.
    Type: Application
    Filed: September 19, 2020
    Publication date: January 18, 2024
    Inventors: Rajeev CHAUHAN, Deepak KAPOOR, Sanjay BHAN, Navin SONI, Amol PAWAR
  • Publication number: 20230151122
    Abstract: The present invention discloses a process for polymerizing fluoromonomers in an aqueous medium to form a fluoropolymer, said process comprising the steps of: (a) forming an aqueous solution comprising a first surfactant combination of at least one fluorinated surfactant and at least one non-10 fluorinated surfactant in a polymerization reactor; (b) pressurizing the polymerization reactor with said fluoromonomers; (c) initiating a polymerization reaction of said fluoromonomers to form said fluoropolymer; (d) propagation of said polymerization reaction, wherein a second surfactant combination of at least one fluorinated surfactant and at least one non-fluorinated surfactant is 15 metered or one shot dosed into the polymerization reactor; and (e) termination of said polymerization reaction after consumption of a desired quantity of said fluoromonomers.
    Type: Application
    Filed: May 14, 2021
    Publication date: May 18, 2023
    Applicant: GUJARAT FLUOROCHEMICALS LIMITED
    Inventors: Rajeev CHAUHAN, Gaurav KUMAR, P.S. RAO, Navin SONI, B.S. BHATTACHARYA, Anamika DUTTA, Anand Mohan PATEL
  • Publication number: 20220372179
    Abstract: The present invention relates to a process for preparing fluoropolymers or fluoroelastomers in an aqueous medium using a non fluorinated sulfonate type hydrocarbon containing surfactant, said process comprising the steps of: (a) forming an aqueous solution comprising an non-fluorinated, hydrocarbon containing, sulfonate anionic type surfactant in a polymerization reactor; (b) pressurizing the reactor with fluoromonomers to form an aqueous emulsion; (c) initiating polymerization of said fluoromonomers; and (d) Propagating the reaction (e) Terminating the reaction after consumption of desired weight of fluoromonomers; wherein the non-fluorinated, hydrocarbon containing, sulfonate type surfactant comprises 18 to 36 carbon atoms, wherein the molecular weight of the fluoropolymer ranges from 1×103 to 9×108 g/mol and wherein said process is devoid of passivating the surfactant.
    Type: Application
    Filed: October 12, 2020
    Publication date: November 24, 2022
    Applicant: GUJARAT FLUOROCHEMICALS LIMITED
    Inventors: Rajeev CHAUHAN, Gaurav KUMAR, P.s. RAO, Navin SONI, B.s. BHATTACHARYA, Anamika DUTTA, Akanksha SHUKLA, Anand Mohan PATEL
  • Publication number: 20220081494
    Abstract: The present invention relates to a process for the polymerization of fluoromonomers in an aqueous medium, said process comprising the steps of: forming an aqueous emulsion comprising a 2-Alkoxy acetate surfactant and fluoromonomer in a reactor; and initiating polymerization of said fluoromonomer by adding an initiator into the reaction mixture. Preferably, the surfactant used in the instant process is either Sodium 2-[(2-hexyldecyl)oxy] acetate or Sodium-2-dodecyloxyacetate.
    Type: Application
    Filed: December 23, 2019
    Publication date: March 17, 2022
    Inventors: Bhuvanesh GUPTA, Bishwajit Santosh Bhattacharya, Rajeev Chauhan, Jitendra Kumar Rathour, Gaurav Kumar, Chetna Verma
  • Patent number: 10936693
    Abstract: The subject disclosure relates to interaction and execution of objects in a distributed network or in the cloud. Each object comprises a Uniform Resource Identifier (URI) path that names the object in the cloud through a distributed object directory. A client device can directly interface with a live instance of an object based on the URI path. The object can be agnostic to remote procedure call semantics. In some aspects, the object can be connected to an interacted with either remotely or locally. Further, single instances or multiple instances of the object can exist at substantially the same time.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: March 2, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ray Patch, Liviu Tiganus, Rajeev Chauhan
  • Publication number: 20140379865
    Abstract: The subject disclosure relates to interaction and execution of objects in a distributed network or in the cloud. Each object comprises a Uniform Resource Identifier (URI) path that names the object in the cloud through a distributed object directory. A client device can directly interface with a live instance of an object based on the URI path. The object can be agnostic to remote procedure call semantics. In some aspects, the object can be connected to an interacted with either remotely or locally. Further, single instances or multiple instances of the object can exist at substantially the same time.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Inventors: Ray Patch, Liviu Tiganus, Rajeev Chauhan
  • Patent number: 8856171
    Abstract: The subject disclosure relates to interaction and execution of objects in a distributed network or in the cloud. Each object comprises a Uniform Resource Identifier (URI) path that names the object in the cloud through a distributed object directory. A client device can directly interface with a live instance of an object based on the URI path. The object can be agnostic to remote procedure call semantics. In some aspects, the object can be connected to an interacted with either remotely or locally. Further, single instances or multiple instances of the object can exist at substantially the same time.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: October 7, 2014
    Assignee: Microsoft Corporation
    Inventors: Ray Patch, Liviu Tiganus, Rajeev Chauhan
  • Publication number: 20120254239
    Abstract: The subject disclosure relates to interaction and execution of objects in a distributed network or in the cloud. Each object comprises a Uniform Resource Identifier (URI) path that names the object in the cloud through a distributed object directory. A client device can directly interface with a live instance of an object based on the URI path. The object can be agnostic to remote procedure call semantics. In some aspects, the object can be connected to an interacted with either remotely or locally. Further, single instances or multiple instances of the object can exist at substantially the same time.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 4, 2012
    Applicant: MICROSOFT CORPORATION
    Inventors: Ray Patch, Liviu Tiganus, Rajeev Chauhan
  • Publication number: 20120102453
    Abstract: Architecture that enables a software object to be a multi-dimensional object by associating additional dimensions to the object. The object, in addition to the actual data dimension, is now provided with inherent object dimensions that include, but are not limited to, a localization dimension, security dimension, version dimension, personalization dimension, and attributes dimension, for example. The actual data dimension and one or more inherent object dimensions can be added, changed, or modified in realtime. A mapping component maps object relationships between an in-memory form and a tabular form storable in a database. An application programming interface facilitates interaction with the object, and the actual data dimension, and the one or more inherent object dimensions.
    Type: Application
    Filed: October 21, 2010
    Publication date: April 26, 2012
    Applicant: Microsoft Corporation
    Inventors: Raymond Patch, Rajeev Chauhan
  • Publication number: 20120096048
    Abstract: Architecture that associates personalized information (e.g., user preferences) to an object that needs to be displayed in a custom way. The preferences are associated with the object as an inherent object dimension, in addition to the actual data (another dimension). The intrinsic actual data contained within the object itself is considered the first dimension, and additional data and/or metadata make up additional dimensions. Whenever the object is retrieved, the associated personal preferences as the inherent object dimension are returned with the object. The web developer simple uses the associated preferences to build the webpage. If no preferences were defined, the object can be configured to return with a default set of preferences.
    Type: Application
    Filed: October 19, 2010
    Publication date: April 19, 2012
    Applicant: Microsoft Corporation
    Inventors: Raymond Patch, Rajeev Chauhan