Patents by Inventor Prasanna Chandrasekhar

Prasanna Chandrasekhar 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).

  • Electrochromic Eyewear
    Publication number: 20200004050
    Abstract: Electrochromic eyewear that include a removable electrochromic lens are provided herein.
    Type: Application
    Filed: September 11, 2019
    Publication date: January 2, 2020
    Inventors: Prasanna Chandrasekhar, Brian Zay, Edward J. Laganis, Vasily V. Romanov, Anthony J. LaRosa
  • Electrochromic eyewear
    Patent number: 10444544
    Abstract: Electrochromic eyewear that include a removable electrochromic lens are provided herein.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: October 15, 2019
    Assignee: Ashwin-Ushas Corporation
    Inventors: Prasanna Chandrasekhar, Brian Zay, Edward J. Laganis, Vasily V. Romanov, Anthony J. LaRosa
  • Complimentary polymer electrochromic device
    Patent number: 10197881
    Abstract: A complimentary polymer or “dual-polymer” electrochromic device and methods of preparing the same are provided.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: February 5, 2019
    Assignee: Ashwin-Ushas Corporation, Inc.
    Inventor: Prasanna Chandrasekhar
  • Potentiostat/galvanostat with digital interface
    Patent number: 10175193
    Abstract: A potentiostat/galvanostat employs a controller for providing digital control signals to a digital-to-analog converter (DAC) that generates an analog output signal in response to digital control signals. A high current driver produces a high current output in response to the analog output signal from the DAC. A high current monitor monitors the output from the high current driver to produce a feedback signal for the high current driver to control the current produced by the high current driver and to produce an output dependent on the current supplied from the high current driver for monitoring by the controller. A counter electrode contact for a counter electrode is connected with the output of the high current monitor. A working electrode contact for a working electrode is electrically connected with a fixed stable voltage potential to enable electrochemical analysis of material between the counter electrode and the working electrode.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: January 8, 2019
    Assignee: Ashwin-Ushas Corporation, Inc.
    Inventors: Prasanna Chandrasekhar, Yanjie Chai
  • Electrochromic Eyewear
    Publication number: 20180252946
    Abstract: Electrochromic eyewear that include a removable electrochromic lens are provided herein.
    Type: Application
    Filed: August 26, 2016
    Publication date: September 6, 2018
    Applicant: Ashwin-Ushas Corporation, Inc.
    Inventors: Prasanna Chandrasekhar, Brian Zay, Edward J. Laganis, Vasily V. Romanov, Anthony J. LaRosa
  • ELECTROCHEMICAL DEPOSITION APPARATUS AND METHODS OF USING THE SAME
    Publication number: 20180209061
    Abstract: An electrochemical deposition apparatus and methods of using the same are provided herein.
    Type: Application
    Filed: March 19, 2018
    Publication date: July 26, 2018
    Inventors: Prasanna Chandrasekhar, Brian J. Zay, Richard Modes, Anthony La Rosa, Kyle Hobin
  • Method and apparatus for control of electrochromic devices
    Patent number: 9995949
    Abstract: The present invention provides apparatuses and methods for modulating the transmissivity of electrochromic devices utilizing a controller that provides a continuous potential that may be pulsed to the electrochromic device.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: June 12, 2018
    Assignee: Ashwin-Ushas Corporation, Inc.
    Inventor: Prasanna Chandrasekhar
  • Electrochemical deposition apparatus and methods of using the same
    Patent number: 9945045
    Abstract: An electrochemical deposition apparatus and methods of using the same are provided herein.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: April 17, 2018
    Assignee: Ashwin-Ushas Corporation, Inc.
    Inventors: Prasanna Chandrasekhar, Brian J. Zay, Richard Modes, Sr., Anthony LaRosa, Kyle Hobin
  • POTENTIOSTAT/GALVANOSTAT WITH DIGITAL INTERFACE
    Publication number: 20170184539
    Abstract: A potentiostat/galvanostat employs a controller for providing digital control signals to a digital-to-analog converter (DAC) that generates an analog output signal in response to digital control signals. A high current driver produces a high current output in response to the analog output signal from the DAC. A high current monitor monitors the output from the high current driver to produce a feedback signal for the high current driver to control the current produced by the high current driver and to produce an output dependent on the current supplied from the high current driver for monitoring by the controller. A counter electrode contact for a counter electrode is connected with the output of the high current monitor. A working electrode contact for a working electrode is electrically connected with a fixed stable voltage potential to enable electrochemical analysis of material between the counter electrode and the working electrode.
    Type: Application
    Filed: March 16, 2017
    Publication date: June 29, 2017
    Inventors: Prasanna Chandrasekhar, Yanjie Chai
  • Complimentary Polymer Electrochromic Device
    Publication number: 20170184936
    Abstract: A complimentary polymer or “dual-polymer” electrochromic device and methods of preparing the same are provided.
    Type: Application
    Filed: March 10, 2017
    Publication date: June 29, 2017
    Inventor: Prasanna Chandrasekhar
  • ELECTROCHEMICAL DEPOSITION APPARATUS AND METHODS OF USING THE SAME
    Publication number: 20170159201
    Abstract: An electrochemical deposition apparatus and methods of using the same are provided herein.
    Type: Application
    Filed: December 2, 2015
    Publication date: June 8, 2017
    Inventors: Prasanna Chandrasekhar, Brian J. Zay, Richard Modes, SR., Anthony LaRosa, Kyle Hobin
  • Potentiostat/galvanostat with digital interface
    Patent number: 9632059
    Abstract: A potentiostat/galvanostat employs a controller for providing digital control signals to a digital-to-analog converter (DAC) that generates an analog output signal in response to digital control signals. A high current driver produces a high current output in response to the analog output signal from the DAC. A high current monitor monitors the output from the high current driver to produce a feedback signal for the high current driver to control the current produced by the high current driver and to produce an output dependent on the current supplied from the high current driver for monitoring by the controller. A counter electrode contact for a counter electrode is connected with the output of the high current monitor. A working electrode contact for a working electrode is electrically connected with a fixed stable voltage potential to enable electrochemical analysis of material between the counter electrode and the working electrode.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: April 25, 2017
    Assignee: Ashwin-Ushas Corporation, Inc.
    Inventors: Prasanna Chandrasekhar, Yanjie Chai
  • Complimentary polymer electrochromic device
    Patent number: 9594284
    Abstract: A complimentary polymer or “dual-polymer” electrochromic device and methods of preparing the same are provided.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: March 14, 2017
    Assignee: Ashwin-Ushas Corporation, Inc.
    Inventor: Prasanna Chandrasekhar
  • POTENTIOSTAT/GALVANOSTAT WITH DIGITAL INTERFACE
    Publication number: 20170067848
    Abstract: A potentiostat/galvanostat employs a controller for providing digital control signals to a digital-to-analog converter (DAC) that generates an analog output signal in response to digital control signals. A high current driver produces a high current output in response to the analog output signal from the DAC. A high current monitor monitors the output from the high current driver to produce a feedback signal for the high current driver to control the current produced by the high current driver and to produce an output dependent on the current supplied from the high current driver for monitoring by the controller. A counter electrode contact for a counter electrode is connected with the output of the high current monitor. A working electrode contact for a working electrode is electrically connected with a fixed stable voltage potential to enable electrochemical analysis of material between the counter electrode and the working electrode.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 9, 2017
    Inventors: Prasanna Chandrasekhar, Yanjie Chai
  • Electrochromic eyewear
    Patent number: 9482880
    Abstract: Electrochromic eyewear that include a removable electrochromic lens are provided herein.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: November 1, 2016
    Assignee: Ashwin-Ushas Corporation, Inc.
    Inventors: Prasanna Chandrasekhar, Brian J. Zay, Edward J. Laganis, Vasily V. Romanov, Anthony J. LaRosa
  • METHOD AND APPARATUS FOR CONTROL OF ELECTROCHROMIC DEVICES
    Publication number: 20160266410
    Abstract: The present invention provides apparatuses and methods for modulating the transmissivity of electrochromic devices utilizing a controller that provides a continuous potential that may be pulsed to the electrochromic device.
    Type: Application
    Filed: May 20, 2016
    Publication date: September 15, 2016
    Inventor: Prasanna Chandrasekhar
  • Complimentary polymer electrochromic device
    Patent number: 9274395
    Abstract: A complimentary polymer or “dual-polymer” electrochromic device and methods of preparing the same are provided.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: March 1, 2016
    Assignee: Ashwin-Ushas Corporation, Inc.
    Inventor: Prasanna Chandrasekhar
  • Variable-emittance electrochromic devices and methods of preparing the same
    Patent number: 9207515
    Abstract: Variable-emittance, electrochromic devices utilizing IR-active conducting polymers and methods of preparing the same are disclosed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 8, 2015
    Assignee: Ashwin-Ushas Corporation, Inc.
    Inventor: Prasanna Chandrasekhar
  • COMPLIMENTARY POLYMER ELECTROCHROMIC DEVICE
    Publication number: 20150275385
    Abstract: A complimentary polymer or “dual-polymer” electrochromic device and methods of preparing the same are provided.
    Type: Application
    Filed: June 12, 2015
    Publication date: October 1, 2015
    Inventor: Prasanna Chandrasekhar
  • Electrochromic eyewear
    Patent number: D834086
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: November 20, 2018
    Assignee: Ashwin-Ushas Corporation, Inc.
    Inventors: Prasanna Chandrasekhar, Brian J. Zay, Edward J. Laganis, Vasily V. Romanov, Anthony J. LaRosa