Patents by Inventor Alireza Zolfaghari

Alireza Zolfaghari 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: 20240092644
    Abstract: A fluid system component can include a body that includes a multidimensional shape defined in orthogonal directions and layers stacked along one of the orthogonal directions, where at least one of the layers includes polymeric material and graphene nanoplatelets formed in situ from the polymeric material, and where the graphene nanoplatelets increase stiffness of the polymeric material.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 21, 2024
    Inventors: Manuel Marya, Alireza Zolfaghari, Srinand Sreedharan Karuppoor
  • Publication number: 20240080989
    Abstract: Thermally induced graphene sensing circuitry and methods for producing circuits from such thermally induced circuits are disclosed along with applications to hydrocarbon exploration and production, and related subterranean activities. The thermally induced graphene circuitry advantageously brings electrically interconnections otherwise absent on oilfield service tools, enabling components and tools to become smart.
    Type: Application
    Filed: November 6, 2023
    Publication date: March 7, 2024
    Inventors: Manuel Marya, Alireza Zolfaghari, Srinand Karuppoor
  • Publication number: 20240049385
    Abstract: A system may include a substrate and a coating deposited onto a surface of the substrate. The coating includes a carbon rich layer deposited on the substrate. The carbon rich layer is also characterized by a first carbon content including sp2 carbon and sp3 carbon. Further, the carbon rich layer includes one or more treated carbon regions. The one or more treated carbon regions possess an electrically conductive carbon material having a second carbon content including sp2 carbon and sp3 carbon. The second carbon content includes more sp2 carbon than the first carbon content, and may be pre-arranged and interconnected to produce an electrical circuitry with a pluralities of sensing abilities. The formed smart coating may be preferentially produced on a hard diamond-like carbon coating, such as a low friction and anti-scaling coating.
    Type: Application
    Filed: August 8, 2022
    Publication date: February 8, 2024
    Inventors: Alireza Zolfaghari, Manuel Marya
  • Publication number: 20230393008
    Abstract: A fluid system component can include a support body that includes a surface; and an electrical circuit supported at least in part by the surface, where the electrical circuit includes graphene adjacent to a composite material that includes a polymer convertible to graphene, and where the electrical circuit generates a signal responsive to deformation of at least a portion of the electrical circuit.
    Type: Application
    Filed: October 15, 2020
    Publication date: December 7, 2023
    Inventors: Manuel Paul Marya, Alireza Zolfaghari
  • Patent number: 11820664
    Abstract: A fluid system component can include a body that includes a multidimensional shape defined in orthogonal directions and layers stacked along one of the orthogonal directions, where at least one of the layers includes polymeric material and graphene nanoplatelets formed in situ from the polymeric material, and where the graphene nanoplatelets increase stiffness of the polymeric material.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: November 21, 2023
    Assignee: Schlumberger Technology Corporation
    Inventors: Manuel Marya, Alireza Zolfaghari, Srinand Sreedharan Karuppoor
  • Patent number: 11812561
    Abstract: Thermally induced graphene sensing circuitry and methods for producing circuits from such thermally induced circuits are presented in conjunction with applications to hydrocarbon exploration and production, and related subterranean activities. The thermally induced graphene circuity advantageously brings electrically interconnections otherwise absent on oilfield service tools, enabling components and tools to become smart.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: November 7, 2023
    Assignee: Schlumberger Technology Corporation
    Inventors: Manuel Marya, Alireza Zolfaghari, Srinand Karuppoor
  • Publication number: 20230086904
    Abstract: A material composition may include one or more polymeric materials. The material composition may also include one or more inorganic particles comprising oxides, carbonates, sulfides, or any combination thereof. Further, the material composition may include one or more metal particles that produce a detectable change in an electrical property or an optical property based on a reaction with at least one of H2O, CO2, or H2S. The one or more inorganic particles and the one or more metal particles may be dispersed within the one or more polymeric materials.
    Type: Application
    Filed: September 16, 2021
    Publication date: March 23, 2023
    Inventors: Manuel Marya, Alireza Zolfaghari
  • Publication number: 20230091259
    Abstract: The disclosure provides for sealing systems including a composite material that includes a thermoplastic lattice structure having interstitial space that is filled with fusible metal. The composite material is formed by additively manufacturing the lattice structure, and then filling the interstitial space with the metal. The composite material may be used to form portions of valves and seals.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 23, 2023
    Inventors: Manuel Marya, Alireza Zolfaghari, Christian Meade
  • Publication number: 20230038707
    Abstract: A fluid system component can include a body that includes a multidimensional shape defined in orthogonal directions and layers stacked along one of the orthogonal directions, where at least one of the layers includes polymeric material and graphene nanoplatelets formed in situ from the polymeric material, and where the graphene nanoplatelets increase stiffness of the polymeric material.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 9, 2023
    Inventors: Manuel Marya, Alireza Zolfaghari, Srinand Sreedharan Karuppoor
  • Publication number: 20210321521
    Abstract: Thermally induced graphene sensing circuitry and methods for producing circuits from such thermally induced circuits are presented in conjunction with applications to hydrocarbon exploration and production, and related subterranean activities. The thermally induced graphene circuity advantageously brings electrically interconnections otherwise absent on oilfield service tools, enabling components and tools to become smart.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 14, 2021
    Inventors: Manuel Marya, Alireza Zolfaghari, Srinand Karuppoor
  • Patent number: 10435554
    Abstract: A degradable downhole component can include a thermoset composite material that includes a thermoset resin that includes crosslinks to a water-soluble polymer and fiber.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: October 8, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Jushik Yun, Alireza Zolfaghari
  • Publication number: 20180079901
    Abstract: A degradable downhole component can include a thermoset composite material that includes a thermoset resin that includes crosslinks to a water-soluble polymer and fiber.
    Type: Application
    Filed: September 19, 2017
    Publication date: March 22, 2018
    Inventors: Jushik Yun, Alireza Zolfaghari
  • Patent number: 9140739
    Abstract: According to one disclosed embodiment, an on-chip resistor calibration circuit includes an RC oscillator having a test resistor and a precision capacitor as elements, a counter, and a reference clock. In one embodiment, an RC oscillator generates a waveform having a period dependent upon the resistance of the test resistor and the capacitance of the precision capacitor. In such an embodiment, a counter and a reference clock may be configured to measure the period of the waveform. Using a pre-determined capacitance of the precision capacitor, a resistance of the test resistor may be determined. In another embodiment, an RC oscillator generates first and second waveforms through use of an additional capacitor that can be switched in and out of the RC oscillator circuit. Using a pre-determined capacitance of the precision capacitor, an RC product of the test resistor and the additional capacitor may be determined.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: September 22, 2015
    Assignee: BROADCOM CORPORATION
    Inventors: Alireza Zolfaghari, Chin-Ming Chien, Bojko Marholev
  • Publication number: 20150092636
    Abstract: A system and method in a transceiver for reducing power. In transmission mode (Tx), a local oscillator (LO) generator (LOGEN) circuit modifies a PLL oscillation signal that runs at a fraction of the carrier signal. In the receive mode (Rx), the LOGEN circuit increases power consumption unnecessarily and is bypassed in favor of a PLL output which is a multiple of the carrier signal.
    Type: Application
    Filed: November 1, 2013
    Publication date: April 2, 2015
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran, Alireza Zolfaghari
  • Patent number: 8885690
    Abstract: Various embodiments are disclosed relating to power control techniques for wireless transmitters. In an example embodiment, an apparatus is provided that may include a digital-to-analog converter (DAC) adapted to convert a digital amplitude signal to an analog amplitude signal during a first transmission mode and adapted to convert a digital power level signal to an analog power level signal during a second transmission mode.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: November 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Alireza Zolfaghari, Henrik Tholstrup Jensen, Hooman Darabi
  • Patent number: 8736322
    Abstract: A mobile communication device is provided that has a transceiver including a voltage controlled oscillator (VCO) and a calibration circuit for calibrating the VCO. The calibration circuit includes a logic block configured to estimate a calibration value for a tuning of the VCO to a desired frequency, and an asynchronous counter configured to execute a counting sequence to identify a frequency of the VCO after the tuning of the VCO using the calibration value, where the calibration circuit is configured to determine a tuned calibration value for producing the desired frequency from the counting sequence.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: May 27, 2014
    Assignee: Broadcom Corporation
    Inventors: Koji Kimura, Alireza Zolfaghari
  • Publication number: 20130285679
    Abstract: According to one disclosed embodiment, an on-chip resistor calibration circuit includes an RC oscillator having a test resistor and a precision capacitor as elements, a counter, and a reference clock. In one embodiment, an RC oscillator generates a waveform having a period dependent upon the resistance of the test resistor and the capacitance of the precision capacitor. In such an embodiment, a counter and a reference clock may be configured to measure the period of the waveform. Using a pre-determined capacitance of the precision capacitor, a resistance of the test resistor may be determined. In another embodiment, an RC oscillator generates first and second waveforms through use of an additional capacitor that can be switched in and out of the RC oscillator circuit. Using a pre-determined capacitance of the precision capacitor, an RC product of the test resistor and the additional capacitor may be determined.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 31, 2013
    Inventors: Alireza Zolfaghari, Chin-Ming Chien, Bojko Marholev
  • Publication number: 20130252564
    Abstract: Various embodiments are disclosed relating to power control techniques for wireless transmitters. In an example embodiment, an apparatus is provided that may include a digital-to-analog converter (DAC) adapted to convert a digital amplitude signal to an analog amplitude signal during a first transmission mode and adapted to convert a digital power level signal to an analog power level signal during a second transmission mode.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Inventors: Alireza Zolfaghari, Henrik Tholstrup Jensen, Hooman Darabi
  • Patent number: 8476911
    Abstract: According to one disclosed embodiment, an on-chip resistor calibration circuit includes an RC oscillator having a test resistor and a precision capacitor as elements, a counter, and a reference clock. In one embodiment, an RC oscillator generates a waveform having a period dependent upon the resistance of the test resistor and the capacitance of the precision capacitor. In such an embodiment, a counter and a reference clock may be configured to measure the period of the waveform. Using a pre-determined capacitance of the precision capacitor, a resistance of the test resistor may be determined. In another embodiment, an RC oscillator generates first and second waveforms through use of an additional capacitor that can be switched in and out of the RC oscillator circuit. Using a pre-determined capacitance of the precision capacitor, an RC product of the test resistor and the additional capacitor may be determined.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: July 2, 2013
    Assignee: Broadcom Corporation
    Inventors: Alireza Zolfaghari, Chin-Ming Chien, Bojko Marholev
  • Patent number: 8467473
    Abstract: Various embodiments are disclosed relating to power control techniques for wireless transmitters. In an example embodiment, an apparatus is provided that may include a digital-to-analog converter (DAC) adapted to convert a digital amplitude signal to an analog amplitude signal during a first transmission mode and adapted to convert a digital power level signal to an analog power level signal during a second transmission mode.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: June 18, 2013
    Assignee: Broadcom Corporation
    Inventors: Alireza Zolfaghari, Henrik Tholstrup Jensen, Hooman Darabi