Patents by Inventor Sridhar Karthik Kailasam
Sridhar Karthik Kailasam 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).
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Patent number: 11668990Abstract: Electrochromic devices and methods may employ the addition of a defect-mitigating insulating layer which prevents electronically conducting layers and/or electrochromically active layers from contacting layers of the opposite polarity and creating a short circuit in regions where defects form. In some embodiments, an encapsulating layer is provided to encapsulate particles and prevent them from ejecting from the device stack and risking a short circuit when subsequent layers are deposited. The insulating layer may have an electronic resistivity of between about 1 and 108 Ohm-cm. In some embodiments, the insulating layer contains one or more of the following metal oxides: aluminum oxide, zinc oxide, tin oxide, silicon aluminum oxide, cerium oxide, tungsten oxide, nickel tungsten oxide, and oxidized indium tin oxide. Carbides, nitrides, oxynitrides, and oxycarbides may also be used.Type: GrantFiled: August 14, 2020Date of Patent: June 6, 2023Assignee: View, Inc.Inventors: Robert T. Rozbicki, Sridhar Karthik Kailasam, Robin Friedman, Dane Thomas Gillaspie, Anshu A. Pradhan, Disha Mehtani
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Publication number: 20230144015Abstract: Methods, apparatus, and systems for mitigating pinhole defects in optical devices such as electrochromic windows. One method mitigates a pinhole defect in an electrochromic device by identifying the site of the pinhole defect and obscuring the pinhole to make it less visually discernible.Type: ApplicationFiled: September 30, 2022Publication date: May 11, 2023Applicant: View, Inc.Inventors: Robin Sean Friedman, Sridhar Karthik Kailasam, Rao P. Mulpuri, Ronald M. Parker, Ronald A. Powell, Anshu Ajit Pradhan, Robert Tad Rozbicki, Vinod Khosla
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Publication number: 20230148443Abstract: Various embodiments herein relate to electrochromic devices and electrochromic device precursors, as well as methods and apparatus for fabricating such electrochromic devices and electrochromic device precursors. In certain embodiments, the electrochromic device or precursor may include one or more particular materials such as a particular electrochromic material and/or a particular counter electrode material. In various implementations, the electrochromic material includes tungsten titanium molybdenum oxide. In these or other implementation, the counter electrode material may include nickel tungsten oxide, nickel tungsten tantalum oxide, nickel tungsten niobium oxide, nickel tungsten tin oxide, or another material.Type: ApplicationFiled: October 26, 2021Publication date: May 11, 2023Inventors: Robert T. Rozbicki, Sridhar Karthik Kailasam
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Publication number: 20230096768Abstract: Disclosed herein are systems, apparatuses, methods, and non-transitory computer readable media related to a display construct coupled to a structure (e.g., a vision window). The structure can be a supportive structure such as a fixture. The display construct is configured to facilitate media display and is at least partially transparent. The vision window may be a tintable window, e.g., a window in which its tint is electrically controllable (e.g., an electrochromic window). Various interactive capabilities with the display construct are disclosed (e.g., via a touch screen).Type: ApplicationFiled: November 11, 2022Publication date: March 30, 2023Inventors: Nitesh Trikha, Robert Michael Martinson, Anthony Young, Vinh N. Nguyen, Matthew Burton Sheffield, Chee Yung Chan, Todd Daniel Antes, Sridhar Karthik Kailasam
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Publication number: 20230077008Abstract: Disclosed herein are systems, apparatuses, methods, and non-transitory computer readable media related to a display construct coupled to a structure (e.g., a vision window). The structure can be a supportive structure such as a fixture. The display construct is configured to facilitate media display and is at least partially transparent. The vision window may be a tintable window, e.g., a window in which its tint is electrically controllable (e.g., an electrochromic window). Various interactive capabilities with the display construct are disclosed (e.g., via a touch screen).Type: ApplicationFiled: November 11, 2022Publication date: March 9, 2023Applicant: View, Inc.Inventors: Nitesh Trikha, Robert Michael Martinson, Anthony Young, Vinh N. Nguyen, Matthew Burton Sheffield, Chee Yung Chan, Todd Daniel Antes, Sridhar Karthik Kailasam
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Publication number: 20230070288Abstract: Disclosed herein are systems, apparatuses, methods, and non-transitory computer readable media related to a display construct coupled to a structure (e.g., a vision window). The structure can be a supportive structure such as a fixture. The display construct is configured to facilitate media display and is at least partially transparent. The vision window may be a tintable window, e.g., a window in which its tint is electrically controllable (e.g., an electrochromic window). Various interactive capabilities with the display construct are disclosed (e.g., via a touch screen).Type: ApplicationFiled: November 11, 2022Publication date: March 9, 2023Inventors: Nitesh Trikha, Robert Michael Martinson, Anthony Young, Vinh N. Nguyen, Matthew Burton Sheffield, Chee Yung Chan, Todd Daniel Antes, Sridhar Karthik Kailasam
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Patent number: 11599003Abstract: Electrochromic devices and methods may employ the addition of a defect-mitigating insulating layer which prevents electronically conducting layers and/or electrochromically active layers from contacting layers of the opposite polarity and creating a short circuit in regions where defects form. In some embodiments, an encapsulating layer is provided to encapsulate particles and prevent them from ejecting from the device stack and risking a short circuit when subsequent layers are deposited. The insulating layer may have an electronic resistivity of between about 1 and 108 Ohm-cm. In some embodiments, the insulating layer contains one or more of the following metal oxides: aluminum oxide, zinc oxide, tin oxide, silicon aluminum oxide, cerium oxide, tungsten oxide, nickel tungsten oxide, and oxidized indium tin oxide. Carbides, nitrides, oxynitrides, and oxycarbides may also be used.Type: GrantFiled: March 31, 2020Date of Patent: March 7, 2023Assignee: View, Inc.Inventor: Sridhar Karthik Kailasam
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Patent number: 11561446Abstract: Electrochromic devices and methods may employ the addition of a defect-mitigating insulating layer which prevents electronically conducting layers and/or electrochromically active layers from contacting layers of the opposite polarity and creating a short circuit in regions where defects form. In some embodiments, an encapsulating layer is provided to encapsulate particles and prevent them from ejecting from the device stack and risking a short circuit when subsequent layers are deposited. The insulating layer may have an electronic resistivity of between about 1 and 108 Ohm-cm. In some embodiments, the insulating layer contains one or more of the following metal oxides: aluminum oxide, zinc oxide, tin oxide, silicon aluminum oxide, cerium oxide, tungsten oxide, nickel tungsten oxide, and oxidized indium tin oxide. Carbides, nitrides, oxynitrides, and oxycarbides may also be used.Type: GrantFiled: March 2, 2020Date of Patent: January 24, 2023Assignee: View, Inc.Inventors: Sridhar Karthik Kailasam, Robin Friedman, Dane Thomas Gillaspie, Anshu A. Pradhan, Robert T. Rozbicki, Disha Mehtani
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Publication number: 20230011016Abstract: Window controller systems and methods are disclosed herein. In some embodiments, a window controller system for controlling multiple optically switchable devices comprises a printed circuit board comprising a first plurality of footprints to which a first plurality of components is mounted and a second plurality of footprints, wherein a subset of the second plurality of footprints is populated by a second plurality of components. The first plurality of components may comprise: a plurality of insulated glass unit (IGU) controllers, each configured to control an IGU of a corresponding plurality of IGUs operatively coupled to the window controller system; and a processing unit configured to control each of the plurality of IGU controllers. The second plurality of components may be selected based on a cable type and/or a protocol type used to provide power and data signals to the printed circuit board.Type: ApplicationFiled: July 22, 2022Publication date: January 12, 2023Inventors: Robert Michael Martinson, Feliciano Vicente Gomez-Martinez, Sajith Kamalnath Gopinathanasari, Nitesh Trikha, Stephen Clark Brown, Anshu A. Pradhan, Sridhar Karthik Kailasam
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Publication number: 20230008603Abstract: The embodiments herein relate to electrochromic stacks, electrochromic devices, and methods and apparatus for making such stacks and devices. In various embodiments, an anodically coloring layer in an electrochromic stack or device is fabricated to include a heterogeneous structure, for example a heterogeneous composition and/or morphology. Such heterogeneous anodically coloring layers can be used to better tune the properties of a device.Type: ApplicationFiled: May 27, 2022Publication date: January 12, 2023Inventors: Dane Thomas Gillaspie, Sridhar Karthik Kailasam, Robert T. Rozbicki
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Publication number: 20220388900Abstract: Prior electrochromic devices frequently suffer from high levels of defectivity. The defects may be manifest as pin holes or spots where the electrochromic transition is impaired. This is unacceptable for many applications such as electrochromic architectural glass. Improved electrochromic devices with low defectivity can be fabricated by depositing certain layered components of the electrochromic device in a single integrated deposition system. While these layers are being deposited and/or treated on a substrate, for example a glass window, the substrate never leaves a controlled ambient environment, for example a low pressure controlled atmosphere having very low levels of particles. These layers may be deposited using physical vapor deposition. In certain embodiments, the device includes a counter electrode having an anodically coloring electrochromic material in combination with an additive.Type: ApplicationFiled: July 29, 2022Publication date: December 8, 2022Inventors: Anshu A. Pradhan, Robert T. Rozbicki, Dane Thomas Gillaspie, Sridhar Karthik Kailasam
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Publication number: 20220382224Abstract: Optically controllable windows and an associated window control system provide a building security platform. A window controller or other processing device can monitor for window breakage, cameras associated with windows can monitor for intruders, and transparent displays can provide alerts regarding detected activity within a building. A window control system can detect deviations from expected I/V characteristics of an optically controllable window during normal operation of the window (tint transitions, steady state conditions, etc.) and/or during application of a security-related perturbing event, and provide alerts upon their occurrence.Type: ApplicationFiled: August 3, 2022Publication date: December 1, 2022Applicant: View, Inc.Inventors: Dhairya Shrivastava, Stephen Clark Brown, Gordon E. Jack, Horop Puth, Illayathambi Kunadian, Oner Bicakci, Sridhar Karthik Kailasam, Fabian Strong, Brandon Tinianov, Joseph Lunardi
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Publication number: 20220357626Abstract: Methods, systems, apparatuses, and media for controlling optical transitions are provided. In some embodiments, a method comprises: (a) applying a drive voltage having a preset magnitude to an optically switchable device to cause the optically switchable device to transition from an initial optical state toward a target optical state; (b) measuring an open circuit voltage (Voc) of the optically switchable device and/or an amount of charge that has been delivered to the optically switchable device; (c) comparing characteristics of the measured Voc and/or the amount of charge to at least one parameter indicative of a target duration of time for the optically switchable device to transition from the initial optical state to the target optical state; (d) modifying the drive voltage to have a modified magnitude, wherein the modified magnitude is determined based at least in part on the comparison; and (e) repeating (a) and (b) until the target optical state is reached.Type: ApplicationFiled: July 13, 2022Publication date: November 10, 2022Inventors: Stephen Clark Brown, Sridhar Karthik Kailasam, Anshu A. Pradhan
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Publication number: 20220334445Abstract: Aspects of this disclosure concern controllers and control methods for applying a drive voltage to bus bars of optically switchable devices such as electrochromic devices. Such devices are often provided on windows such as architectural glass. In certain embodiments, the applied drive voltage is controlled in a manner that efficiently drives an optical transition over the entire surface of the electrochromic device. The drive voltage is controlled to account for differences in effective voltage experienced in regions between the bus bars and regions proximate the bus bars. Regions near the bus bars experience the highest effective voltage. In some cases, feedback may be used to monitor an optical transition. In these or other cases, a group of optically switchable devices may transition together over a particular duration to achieve approximately uniform tint states over time during the transition.Type: ApplicationFiled: April 13, 2022Publication date: October 20, 2022Inventors: Gordon E. Jack, Sridhar Karthik Kailasam, Stephen Clark Brown, Anshu A. Pradhan, Jose Vigano, Dhairya Shrivastava, Mark David Mendenhall
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Publication number: 20220308416Abstract: Various embodiments herein relate to electrochromic devices and electrochromic device precursors, as well as methods and apparatus for fabricating such electrochromic devices and electrochromic device precursors. In certain embodiments, the electrochromic device or precursor may include one or more particular materials such as a particular electrochromic material and/or a particular counter electrode material. In various implementations, the electrochromic material includes tungsten molybdenum oxide. In these or other implementation, the counter electrode material may include nickel tungsten oxide, nickel tungsten tantalum oxide, nickel tungsten niobium oxide, nickel tungsten tin oxide, or another material.Type: ApplicationFiled: June 5, 2020Publication date: September 29, 2022Inventors: Robert T. Rozbicki, Sridhar Karthik Kailasam
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Patent number: 11415949Abstract: Optically controllable windows and an associated window control system provide a building security platform. A window controller or other processing device can monitor for window breakage, cameras associated with windows can monitor for intruders, and transparent displays can provide alerts regarding detected activity within a building. A window control system can detect deviations from expected UV characteristics of an optically controllable window during normal operation of the window (tint transitions, steady state conditions, etc.) and/or during application of a security-related perturbing event, and provide alerts upon their occurrence.Type: GrantFiled: June 5, 2019Date of Patent: August 16, 2022Assignee: View, Inc.Inventors: Dhairya Shrivastava, Stephen Clark Brown, Gordon E. Jack, Rob Puth, Illayathambi Kunadian, Oner Bicakci, Sridhar Karthik Kailasam, Fabian Strong, Brandon Tinianov, Joseph Lunardi
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Publication number: 20220252952Abstract: Electrochromic device (550) having at least one multi-layer conductor (560,580) with a metal layer (564,584) between a first transparent conductive oxide layer (562,566,582,586) and a second transparent conductive oxide layer (562,566,582,586) and optionally having one or more tuning layers adjacent the metal layer.Type: ApplicationFiled: July 30, 2020Publication date: August 11, 2022Applicant: View, Inc.Inventors: Robert T. Rozbicki, Anshu A. Pradhan, Sridhar Karthik Kailasam, Robin Friedman, Gordon E. Jack, Dane Thomas Gillaspie
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Publication number: 20220221765Abstract: This disclosure provides spacers for smart windows. In one aspect, a window assembly includes a first substantially transparent substrate having an optically switchable device on a surface of the first substrate. The optically switchable device includes electrodes. A first electrode of the electrodes has a length about the length of a side of the optically switchable device. The window assembly further includes a second substantially transparent substrate a metal spacer between the first and the second substrates. The metal spacer has a substantially rectangular cross section, with one side of the metal spacer including a recess configured to accommodate the length of the first electrode such that there is no contact between the first electrode and the metal spacer. A primary seal material bonds the first substrate to the metal spacer and bonds the second substrate to the metal spacer.Type: ApplicationFiled: March 28, 2022Publication date: July 14, 2022Inventors: Yashraj Bhatnagar, Trevor Frank, Fabian Strong, Sridhar Karthik Kailasam, Robert Babcock, Ronald M. Parker, Robert T. Rozbicki
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Publication number: 20220204398Abstract: The embodiments herein relate to electrochromic stacks, electrochromic devices, and methods and apparatus for making such stacks and devices. In various embodiments, an anodically coloring layer in an electrochromic stack or device is fabricated to include a heterogeneous structure, for example a heterogeneous composition and/or morphology. Such heterogeneous anodically coloring layers can be used to better tune the properties of a device.Type: ApplicationFiled: March 16, 2022Publication date: June 30, 2022Inventors: Dane Thomas Gillaspie, Sridhar Karthik Kailasam, Robert T. Rozbicki
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Publication number: 20220066274Abstract: Various embodiments herein relate to electrochromic devices and electrochromic device precursors, as well as methods and apparatus for fabricating such electrochromic devices and electrochromic device precursors. In certain embodiments, the electrochromic device or precursor may include one or more particular materials such as a particular electrochromic material and/or a particular counter electrode material. In various implementations, the electrochromic material includes tungsten titanium molybdenum oxide. In these or other implementation, the counter electrode material may include nickel tungsten oxide, nickel tungsten tantalum oxide, nickel tungsten niobium oxide, nickel tungsten tin oxide, or another material.Type: ApplicationFiled: October 26, 2021Publication date: March 3, 2022Inventors: Robert T. Rozbicki, Sridhar Karthik Kailasam