Patents by Inventor Atul Bhatnagar

Atul Bhatnagar 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: 20230399468
    Abstract: A bio-based poly(arylether sulfone) copolymer (“copolymer b-PAES”) comprises at least two sulfone recurring units derived from two distinct dihydroxy/diol monomers: a bio-compatible and bio-based diol momoner and a bisphenol monomer distinct from Bisphenol S (BPS) and Bisphenol A (BPA). The dihydroxy bisphenol monomer comprises a substituted-phenol bisphenolic compound distinct from BPS and BPA, preferably comprises a bisphenol F derivative with both alkyl substituted-phenol groups. The bio-based diol monomer comprises at least one diol selected from isosorbide, isomannide and/or isoidide. The copolymer b-PAES is preferably free of BPA and BPS. A process for manufacturing such copolymer b-PAES, its use for manufacturing an article, an article made therefrom such as membranes, and a polymer solution for manufacture of membrane comprising such copolymer b-PAES.
    Type: Application
    Filed: December 10, 2021
    Publication date: December 14, 2023
    Inventors: Atul BHATNAGAR, Keshav S. GAUTAM
  • Publication number: 20230001362
    Abstract: The present invention relates to a membrane for purifying a biological fluid, comprising at least one poly(aryl ether sulfone) (PAES) polymer based on one specific dihydroxy monomer. The present invention also relates to a purification method for a biological fluid comprising at least a filtration step through this membrane, as well as to the polymer solution for preparing such membrane, comprising this PAES.
    Type: Application
    Filed: December 4, 2020
    Publication date: January 5, 2023
    Inventors: Atul BHATNAGAR, David B. THOMAS
  • Publication number: 20220396668
    Abstract: The present invention relates to a process for preparing a polysulfone (PSU) polymer having a low yellowness index (YI). The present disclosure also relates to a PSU obtained from this process, as well as to articles incorporating this PSU.
    Type: Application
    Filed: November 17, 2020
    Publication date: December 15, 2022
    Inventors: Atul BHATNAGAR, Gregory GOSCHY, Chantal LOUIS, David B. THOMAS
  • Patent number: 10829596
    Abstract: The present invention relates a mobile electronic device comprising at least one part made of a polymer composition comprising for more than 80% by weight (% wt.) relative to the total weight of the composition (C) of an aromatic polysulfone polymer comprising a residual chlorine content in an amount of less than 25 ?eq/g polymer.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: November 10, 2020
    Assignee: SOLVAY SPECIALTY POLYMERS USA, LLC
    Inventors: Atul Bhatnagar, Hong Chen, Theodore Moore
  • Publication number: 20180298147
    Abstract: The present invention relates a mobile electronic device comprising at least one part made of a polymer composition comprising for more than 80% by weight (% wt.) relative to the total weight of the composition (C) of an aromatic polysulfone polymer comprising a residual chlorine content in an amount of less than 25 ?eq/g polymer.
    Type: Application
    Filed: May 29, 2018
    Publication date: October 18, 2018
    Inventors: Atul BHATNAGAR, Hong CHEN, Theodore MOORE
  • Patent number: 10005887
    Abstract: The present invention relates a mobile electronic device comprising at least one part made of a polymer composition comprising for more than 80% by weight (% wt.) relative to the total weight of the composition (C) of an aromatic polysulfone polymer comprising a residual chlorine content in an amount of less than 25 ?eq/g polymer.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: June 26, 2018
    Assignee: Solvay Specialty Polymers USA, LLC
    Inventors: Atul Bhatnagar, Hong Chen, Theodore Moore
  • Publication number: 20150315341
    Abstract: The present invention relates a mobile electronic device comprising at least one part made of a polymer composition comprising for more than 80% by weight (% wt.) relative to the total weight of the composition (C) of an aromatic polysulfone polymer comprising a residual chlorine content in an amount of less than 25 ?eq/g polymer.
    Type: Application
    Filed: December 18, 2013
    Publication date: November 5, 2015
    Inventors: Atul BHATNAGAR, Hong CHEN, Theodore MOORE
  • Publication number: 20150129487
    Abstract: A poly(arylethersulfone) polymer comprising recurring units derived from at least one aromatic dihalocompound comprising at least one —S(?O)2— group and at least one diol (D) comprising at least one cycloaliphatic moiety (M).
    Type: Application
    Filed: May 15, 2013
    Publication date: May 14, 2015
    Inventors: Atul Bhatnagar, Hong Chen, Chantal Louis, Narmandakh Taylor, Joel Pollino
  • Publication number: 20140379336
    Abstract: An ear-based wearable networking device, system, and method is disclosed. The wearable networking device, system, and method is configured to monitor and process plural conversations in proximity of a user and store the associated information in a cloud system. The cloud system is configured to, based on the associated information, process, archive, create alerts, create reminders, retrieve, etc.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 25, 2014
    Inventor: Atul BHATNAGAR
  • Patent number: 8742062
    Abstract: A polymer comprising sulfone groups, ketone groups and optionally substituted polyarylene groups, wherein the number of moles of sulfone groups over the number of moles of ketone groups ratio is greater than 1. A process for making such polymer, a composition comprising such polymer, and articles made therefrom.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: June 3, 2014
    Assignee: Solvay Advanced Polymers, L.L.C.
    Inventors: Atul Bhatnagar, William W. Looney, Chantal Louis
  • Publication number: 20140113093
    Abstract: A polymer which comprises recurring units derived from at least one monomer (M) having a general formula (I) Y1—Z1-Q-Z2—Y2 wherein Y1 and Y2, equal or different from each other, are independently selected from a group consisting of OH, SH, Cl, Br, NO2 or I; Z1 and Z2, equal or different from each other, independently comprises at least 1 aromatic ring and, Q comprises at least one hydrophilic moiety (H) selected from the group consisting of a sulfone (SO2), a ketone (CO), a phosphine oxide (PO), an ether, a thioether, an ester, an anhydride, a carbonate, an amide, an imide, an imine and an urethane group, and the interatomic distance between Y1 and Y2 is at least 10 ?, the monomer has an EC50 response value to the estrogen receptor a (ER?) equal to or at least 26000 nM.
    Type: Application
    Filed: May 24, 2012
    Publication date: April 24, 2014
    Applicant: SOLVAY SPECIALITY POLYMERS USA, LLC
    Inventors: George A. Corbin, Theodore Moore, Atul Bhatnagar
  • Publication number: 20140033242
    Abstract: A computer-implemented method, a video service assurance system, and a wireless network with video service assurance provide analytics associated with video services in a network, such as Long Term Evolution (LTE) wireless networks, and actionable recommendations to improve the video services. In particular, the computer-implemented method of video service assurance includes obtaining measurement data and statistics from at least one network element in a network related to a plurality of video streams thereon, performing data aggregation and analysis with the measurement data and statistics related to the video streams, and providing actionable recommendations for improvement of the video streams to the at least one network element based on the data aggregation and analysis.
    Type: Application
    Filed: July 24, 2013
    Publication date: January 30, 2014
    Inventors: Srinivasa RAO, Atul BHATNAGAR
  • Publication number: 20100310804
    Abstract: A polymer comprising sulfone groups, ketone groups and optionally substituted polyarylene groups, wherein the number of moles of sulfone groups over the number of moles of ketone groups ratio is greater than 1. A process for making such polymer, a composition comprising such polymer, and articles made therefrom.
    Type: Application
    Filed: June 10, 2010
    Publication date: December 9, 2010
    Applicant: SOLVAY ADVANCED POLYMERS, L.L.C.
    Inventors: Atul BHATNAGAR, William W. LOONEY, Chantal LOUIS
  • Publication number: 20100024695
    Abstract: Fabric comprising a plurality of fibers (F) comprising at least one polymer material (P) selected from the group consisting of: (1) a blend (B12) composed of at least one poly(aryl ether ketone) and at least one poly(aryl ether sulfone); (2) a polymer (P3) comprising sulfone groups, ketone groups and arylene groups, and (3) a blend (B123) thereof. Filter assemblies and filtration systems incorporating such fabric.
    Type: Application
    Filed: March 20, 2008
    Publication date: February 4, 2010
    Applicant: SOLVAY ADVANCED POLYMERS, L.L.C.
    Inventors: Celene Difrancia, William W. Looney, Pascale Nagels, Atul Bhatnagar, Gregory Warkoski
  • Patent number: 7565159
    Abstract: An active call handover arrangement for managing a handover between a plurality of telecommunication devices associated with a public extension number is provided. The arrangement includes a mobility server configured to manage a telecommunication session between a telecommunication device of a third-party caller and a first telecommunication device of the plurality of telecommunication devices. The arrangement also includes a switch component configured to be associated with at least one telecommunication device of the plurality of telecommunication devices. At least one telecommunication device is configured to include mobility client software. The switch component is also configured to enable a user to perform the handover between the first telecommunication device and a second telecommunication device of the plurality of telecommunication devices.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: July 21, 2009
    Assignee: Divitas Networks, Inc.
    Inventors: Snehal Karia, Atul Bhatnagar, Weijian Qian, Prashant Chauhan, Rajesh Palakkal, Joshua Marder, Rushika Panchal
  • Publication number: 20080220781
    Abstract: An active call handover arrangement for managing a handover between a plurality of telecommunication devices associated with a public extension number is provided. The arrangement includes a mobility server configured to manage a telecommunication session between a telecommunication device of a third-party caller and a first telecommunication device of the plurality of telecommunication devices. The arrangement also includes a switch component configured to be associated with at least one telecommunication device of the plurality of telecommunication devices. At least one telecommunication device is configured to include mobility client software. The switch component is also configured to enable a user to perform the handover between the first telecommunication device and a second telecommunication device of the plurality of telecommunication devices.
    Type: Application
    Filed: May 14, 2007
    Publication date: September 11, 2008
    Inventors: Snehal Karia, Atul Bhatnagar, Weijian Qian, Prashant Chauhan, Rajesh Palakkal, Joshua Marder, Rushika Panchal
  • Patent number: 7375178
    Abstract: High refractive index, melt processable polyphosphonates and methods for preparing the same are provided. These polymers are particularly useful for optical and ophthalmic parts, such as lenses. A method of preparing optical and ophthalmic lenses by injection molding the polymers of the present invention into the form of the optical or ophthalmic lenses is also provided.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: May 20, 2008
    Assignee: Essilor International
    Inventors: Hosadurga K. Shobha, Venkat Sekharipuram, James E. McGrath, Atul Bhatnagar
  • Publication number: 20070155951
    Abstract: High refractive index, melt processable polyphosphonates and methods for preparing the same are provided. These polymers are particularly useful for optical and ophthalmic parts, such as lenses. A method of preparing optical and ophthalmic lenses by injection molding the polymers of the present invention into the form of the optical or ophthalmic lenses is also provided.
    Type: Application
    Filed: June 27, 2006
    Publication date: July 5, 2007
    Inventors: Hosadurga Shobha, Venkat Sekharipuram, James McGrath, Atul Bhatnagar
  • Patent number: 7067083
    Abstract: High refractive index, melt processable polyphosphonates and methods for preparing the same are provided. These polymers are particularly useful for optical and ophthalmic parts, such as lenses. A method of preparing optical and ophthalmic lenses by injection molding the polymers of the present invention into the form of the optical or ophthalmic lenses is also provided.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: June 27, 2006
    Assignees: Essilor International (Compagnie Generale D'Optique), Virginia Tech Intellectual Properties, Inc.
    Inventors: Venkat Sekharipuram, Hosadurga K. Shobha, James E. McGrath, Atul Bhatnagar
  • Publication number: 20060123481
    Abstract: Network elements that are configured to perform deep packet inspection may be dynamically updated with patterns associated with malicious code, so that malicious code may be detected and blocked at the network level. As new threats are identified by a security service, new patterns may be created for those threats, and the new patterns may then be passed out onto the network in real time. The real time availability of patterns enables filter rules derived from the patterns to be applied by the network elements so that malicious code may be filtered on the network before it reaches the end users. The filter rules may be derived by security software resident in the network elements or may be generated by a filter generation service configured to generate network element specific filter rules for those network elements that are to be implemented as detection points on the network.
    Type: Application
    Filed: December 7, 2005
    Publication date: June 8, 2006
    Applicant: Nortel Networks Limited
    Inventors: Atul Bhatnagar, Tal Lavian