Patents by Inventor Anurag Gupta

Anurag 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: 9968999
    Abstract: Permanent magnets are used for several important applications, including dc electrical motors, wind turbines, hybrid automobile, and for many other applications. Modern widely used rare-earth based permanent magnet materials, such as Sm—Co and Nd—Fe—B, are generally intermetallic alloys made from rare earth elements and transition metals such as cobalt. However, the high costs of rare earth elements make the widespread use of these permanent magnets commercially unattractive. The present work focuses on producing a new permanent magnet material, with good magnetic properties, which is free from rare-earth elements and thus cost-effective. The present invention provides a process to synthesis boron doped manganese antimonide as an alternative to rare earth based permanent magnet materials. The boron doped manganese antimonide disclosed in this invention is free from rare-earth element with good magnetic properties.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: May 15, 2018
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Nidhi Singh, Jiji Thomas Joseph Pulikkotil, Anurag Gupta, Kanika Anand, Ajay Dhar, Ramesh Chandra Budhani
  • Patent number: 9933296
    Abstract: A passive infrared motion detection sensor that includes a Fresnel focusing arrangement that creates at least a first infrared sensing region, a second infrared sensing region, and a third infrared sensing region, in which target detection in one or more infrared sensing regions is weighted to be distinguishable from target detection in remaining infrared sensing regions. The Fresnel focusing arrangement creates the weighted infrared sensing regions using a lenslet region, an optically opaque region and a plurality of extruded cylindrical lenslets that extend across a portion of both the lenslet region and the optically opaque region. The signal detection in at least the second weighted infrared sensing region, for example, an infrared sensing range between 6 and 10 feet, is weighted to easily distinguish between a pet within the second infrared sensing range and a person at any infrared sensing range.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: April 3, 2018
    Assignee: GOOGLE LLC
    Inventors: Anurag Gupta, Aveek Ravishekhar Purohit
  • Patent number: 9911532
    Abstract: A high density capacitor comprises a housing having a cavity, and a plurality of capacitors forming at least one capacitor bank disposed in the housing cavity. A native cooling fluid is disposed in the cavity, and a heat exchanger is coupled to the housing. A pump is configured to circulate the native cooling fluid from the cavity, through the heat exchanger, through the spacings along an outer surface of each of the capacitors to cool the capacitors using forced convection. The heat exchanger is configured to communicate a secondary fluid through the heat exchanger and draw heat from the native cooling fluid flowing through the heat exchanger. The heat exchanger may have a plenum having a plurality of openings configured to dispense the native cooling fluid from the heat exchanger proximate the at least one capacitor bank.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: March 6, 2018
    Assignee: Raytheon Company
    Inventors: Anurag Gupta, Robert R. Lopez, Stephen B. Kuznetsov
  • Patent number: 9903338
    Abstract: A wind turbine blade is provided. The wind turbine blade includes a first section and a second section adjacent the first section. At least one of the first section and the second section includes a skin segment and a network of support members disposed within the skin segment. The network of support members is configured for expansion.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: February 27, 2018
    Assignee: General Electric Company
    Inventors: Wendy Wen-Ling Lin, Anurag Gupta
  • Patent number: 9903814
    Abstract: Apparatus, systems, methods, and related computer program products for handling temperature variation with optoelectronic components of a hazard detection system are described herein. A power characteristic of an optoelectronic component of the hazard detection system may be used to determine a temperature of an environment of the hazard detection system. A power characteristic of an optoelectronic component of the hazard detection system may be used to determine a smoke condition of an environment of the hazard detection system. Optoelectronic components of the hazard detection system may be optically coupled to determine a smoke condition of an environment of the hazard detection system. Multiple optoelectronics of the hazard detection system may be operative to detect forward scatter and back scatter of one or more types of light to determine a characteristic of a hazard particle.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: February 27, 2018
    Assignee: GOOGLE LLC
    Inventors: Daniel Adam Warren, Ian C. Smith, Morakinyo John Aina, Andrew W. Goldenson, Dietrich Ho, Anurag Gupta
  • Publication number: 20170358189
    Abstract: Various embodiments of a smoke chamber for a smoke detector are presented. Such a smoke chamber may include a housing, having a first portion and a second portion. The first portion may be through which an electromagnetic sensor and two or more electromagnetic emitters interact with an airspace within the housing. The second portion may have an airflow surface that at least partially defines a curved airflow path between the airspace within the housing and an external environment. The curved airflow path may curve radially outward.
    Type: Application
    Filed: May 17, 2017
    Publication date: December 14, 2017
    Applicant: Google Inc.
    Inventors: Mathias Schmidt, Adam Mittleman, Anurag Gupta, Mark Kraz, Nicholas Webb
  • Publication number: 20170336432
    Abstract: Methods and apparatus relating to a photodiode-augmented infrared (IR) motion sensor are provided. The IR motion sensor can be used to sense mid-IR range radiation emitting from a person. Within the IR motion sensor, incident mid-IR range radiation impinges on an IR sensing element situated behind a Fresnel lens. Thus, when the person crosses a particular region in the range of the IR motion sensor, the IR sensing element detects a change in radiation signature, and can subsequently notify another system, such as a security system, of the change. The IR motion sensor also includes an ambient light-sensing element configured to provide information used to perform a quality check, such as to rule out “false positive” outputs, on information output from the IR sensing element.
    Type: Application
    Filed: May 19, 2016
    Publication date: November 23, 2017
    Inventors: Andrew Goldenson, Anurag Gupta
  • Patent number: 9822193
    Abstract: A system and method for startup of a polyolefin reactor temperature control system having a first reactor temperature control path, a second reactor temperature control path, and a shared temperature control path. In some embodiments, during startup the second reactor temperature control path is configured to allow the temperature of a second reactor to rise due to the heat of the exothermic polymerization reaction occurring within reactor until reaching a predetermined setpoint temperature. In other embodiments, during startup a first reactor temperature control path is configured to include a heat exchanger used as a cooler, and a second reactor temperature control path is configured to include a heat exchanger used as a heater, to raise the temperature of the second reactor until reaching a predetermined setpoint temperature.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: November 21, 2017
    Assignee: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Timothy O. Odi, Ralph Romig, Joseph Curren, Anurag Gupta
  • Publication number: 20170304003
    Abstract: Disclosed herein are optical assemblies having thin, low profile shapes. These optical assemblies may be used with fiber coupled lasers and other light sources, including high power sources, to irradiate tissue at a wavelength suitable for inducing ablation or coagulation to a target depth, denaturation, thermal modification of a tissue, and/or preferential injury to a target tissue structure. Example optical assemblies can produce substantially uniform illumination patterns that are useful for treating superficial tissue, including the internal or luminal (e.g., esophageal) tissue. Some examples may have capability for cooling superficial tissue or skin, such as a detachable, reusable heat sink for active cooling without consumables, fluid pumps, or other cooling equipment.
    Type: Application
    Filed: December 30, 2016
    Publication date: October 26, 2017
    Inventors: Kathleen McMillan, Anurag Gupta, James Patrick McGuire, JR.
  • Publication number: 20170306059
    Abstract: A system and method for startup of a polyolefin reactor temperature control system having a first reactor temperature control path, a second reactor temperature control path, and a shared temperature control path. In some embodiments, during startup the second reactor temperature control path is configured to allow the temperature of a second reactor to rise due to the heat of the exothermic polymerization reaction occurring within reactor until reaching a predetermined setpoint temperature. In other embodiments, during startup a first reactor temperature control path is configured to include a heat exchanger used as a cooler, and a second reactor temperature control path is configured to include a heat exchanger used as a heater, to raise the temperature of the second reactor until reaching a predetermined setpoint temperature.
    Type: Application
    Filed: July 11, 2017
    Publication date: October 26, 2017
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Timothy O. Odi, Ralph Romig, Joseph Curren, Anurag Gupta
  • Publication number: 20170254703
    Abstract: Methods and apparatus relating to a pyroelectric IR (PIR) motion sensor are provided. The provided PIR motion sensor can be used to determine an angular position of a moving person relative to the PIR motion sensor. The provided PIR motion sensor can be used to determine a proximity of a moving person relative to the PIR motion sensor. The angular position and the proximity can be used to identify a false alarm, estimate occupancy of a region, enable tracking of a target, and the like. In an example, the provided PIR motion sensor includes multiple PIR sensors and a Fresnel lens including lenslets configured to direct received IR radiation to at least two of the PIR sensors.
    Type: Application
    Filed: March 1, 2016
    Publication date: September 7, 2017
    Inventors: Aveek Ravishekhar Purohit, Anurag Gupta
  • Patent number: 9733477
    Abstract: An eyepiece includes a first end for receiving display light, an end reflector, and a viewing region including a partially reflective surface to redirect at least a portion of the display light out of an eye-ward side of the eyepiece along an emission path. The partially reflective surface is obliquely angled to cause the emission path to have a first oblique angle in a first dimension relative to a first normal vector of the eye-ward side. The end reflector is tilted to cause the emission path to have a second oblique angle in a second dimension relative to the first normal vector of the eye-ward side. The first and second dimensions are orthogonal to each other.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: August 15, 2017
    Assignee: Google Inc.
    Inventor: Anurag Gupta
  • Patent number: 9709797
    Abstract: An eyepiece for a head mounted display (“HMD”) includes a doublet lens that includes a first optical element and a second optical element. The first optical element has an entry surface to receive the display light from a micro display and a first coupling surface. The second optical element has an exit surface and a second coupling surface paired to the first coupling surface of the first optical element. The doublet lens is configured to direct the display light through the first coupling surface, the second coupling surface, and through the exit surface.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: July 18, 2017
    Assignee: Google Inc.
    Inventors: Ozan Cakmakci, Amber M. Luttmann, Anurag Gupta
  • Publication number: 20170191930
    Abstract: Apparatus, systems, methods, and related computer program products for handling temperature variation with optoelectronic components of a hazard detection system are described herein. A power characteristic of an optoelectronic component of the hazard detection system may be used to determine a temperature of an environment of the hazard detection system. A power characteristic of an optoelectronic component of the hazard detection system may be used to determine a smoke condition of an environment of the hazard detection system. Optoelectronic components of the hazard detection system may be optically coupled to determine a smoke condition of an environment of the hazard detection system. Multiple optoelectronics of the hazard detection system may be operative to detect forward scatter and back scatter of one or more types of light to determine a characteristic of a hazard particle.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Daniel Adam Warren, Ian C. Smith, Morakinyo John Aina, Andrew W. Goldenson, Dietrich Ho, Anurag Gupta
  • Publication number: 20170191877
    Abstract: Apparatus, systems, methods, and related computer program products for handling temperature variation with optoelectronic components of a hazard detection system are described herein. A power characteristic of an optoelectronic component of the hazard detection system may be used to determine a temperature of an environment of the hazard detection system. A power characteristic of an optoelectronic component of the hazard detection system may be used determine a smoke condition of an environment of the hazard detection system. Optoelectronic components of the hazard detection system may be optically coupled to determine a smoke condition of an environment of the hazard detection system. Multiple optoelectronics of the hazard detection system may be operative to detect forward scatter and back scatter of one or more types of light to determine a characteristic of a hazard particle.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Daniel Adam Warren, Ian C. Smith, Morakinyo John Aina, Andrew W. Goldenson, Dietrich Ho, Anurag Gupta
  • Publication number: 20170191876
    Abstract: Apparatus, systems, methods, and related computer program products for handling temperature variation with optoelectronic components of a hazard detection system are described herein. A power characteristic of an optoelectronic component of the hazard detection system may be used to determine a temperature of an environment of the hazard detection system. A power characteristic of an optoelectronic component of the hazard detection system may be used to determine a smoke condition of an environment of the hazard detection system. Optoelectronic components of the hazard detection system may be optically coupled to determine a smoke condition of an environment of the hazard detection system. Multiple optoelectronics of the hazard detection system may be operative to detect forward scatter and back scatter of one or more types of light to determine a characteristic of a hazard particle.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Daniel Adam Warren, Ian C. Smith, Morakinyo John Aina, Andrew W. Goldenson, Dietrich Ho, Anurag Gupta
  • Patent number: 9685058
    Abstract: Various embodiments of a smoke chamber for a smoke detector are presented. Such a smoke chamber may include a housing, having a first portion and a second portion. The first portion may be through which an electromagnetic sensor and two or more electromagnetic emitters interact with an airspace within the housing. The second portion may have an airflow surface that at least partially defines a curved airflow path between the airspace within the housing and an external environment. The curved airflow path may curve radially outward.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: June 20, 2017
    Assignee: Google Inc.
    Inventors: Mathias Schmidt, Adam Mittleman, Anurag Gupta, Mark Kraz, Nicholas Webb
  • Patent number: 9671614
    Abstract: An eyepiece for a head wearable display includes a light guide component for guiding display light received at a peripheral location and emitting the display light at a viewing region. The light guide component includes an eye-ward facing surface having a reflection portion and a viewing portion, a folding surface oriented to reflect the display light received into the light guide component to the reflection portion of the eye-ward facing surface, and a first interface surface oriented to receive the display light reflected from the reflection portion of the eye-ward facing surface. A partially reflective layer is disposed on the first interface surface in the viewing region to reflect the display light through viewing portion of the eye-ward facing surface.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: June 6, 2017
    Assignee: Google Inc.
    Inventors: Ozan Cakmakci, Anurag Gupta, Oscar A. Martinez
  • Publication number: 20170152327
    Abstract: A system and method for a polyolefin reactor temperature control system having a first reactor temperature control path, a second reactor temperature control path, and a shared temperature control path. The shared temperature control path is configured to combine and process coolant return streams, and to provide coolant supply for the first reactor temperature control path and the second reactor temperature control path.
    Type: Application
    Filed: February 10, 2017
    Publication date: June 1, 2017
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Timothy O. Odi, Ralph Romig, Anurag Gupta
  • Publication number: 20170152328
    Abstract: A system and method for startup of a polyolefin reactor temperature control system having a first reactor temperature control path, a second reactor temperature control path, and a shared temperature control path. In some embodiments, during startup the second reactor temperature control path is configured to allow the temperature of a second reactor to rise due to the heat of the exothermic polymerization reaction occurring within reactor until reaching a predetermined setpoint temperature. In other embodiments, during startup a first reactor temperature control path is configured to include a heat exchanger used as a cooler, and a second reactor temperature control path is configured to include a heat exchanger used as a heater, to raise the temperature of the second reactor until reaching a predetermined setpoint temperature.
    Type: Application
    Filed: February 10, 2017
    Publication date: June 1, 2017
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Timothy O. Odi, Ralph Romig, Joseph Curren, Anurag Gupta