Patents by Inventor Lijun Lin

Lijun Lin 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: 10982130
    Abstract: A composition for an environmentally friendly hydrofracturing friction reducer product can be synthesized. A method for synthesis of a friction reducer emulsion can include using gas-to-liquid synthesized oil as a continuous phase in invert emulsion polymerization. The composition can be optimized by using a suitable amount of salt tolerant monomer for the best performance with salt tolerant features. Various inverting agents can be utilized for the self-inverting in brine with good product stability. The optimized friction reducer can be used in weighted brine hydrofracturing.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: April 20, 2021
    Assignee: CNPC USA Corporation
    Inventors: Litao Bai, Lijun Lin
  • Patent number: 10932192
    Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more specifically, to enhanced or evolved machine type communication (eMTC) power saving mode (PSM) enhancements for service outage. An example method generally includes receiving, from a modem of the wireless node, a first indication that indicates at least one of: network connectivity or network accessibility at the wireless node; receiving, from an applications processor of the wireless node, a second indication that indicates at least one of: server accessibility or availability of one or more applications; and determining when to enter a PSM based, at least in part, on at least one of: the first or second indications.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: February 23, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Liangchi Hsu, Srinivasan Balasubramanian, Lijun Lin
  • Publication number: 20200369952
    Abstract: A hydraulic fracture fluid is provided. The fluid can include a liquid solvent, one or more surfactants, a proppant-forming compound, and one or more curing agents. The liquid reacts to form proppant in-situ under downhole conditions.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 26, 2020
    Applicant: CNPC USA Corporation
    Inventors: Lijun Lin, Jiangshui Huang, Litao Bai, Stephanie Yu, Fuchen Liu, Congbin Yin, Wei Gong
  • Patent number: 10752829
    Abstract: A hydraulic fracture fluid is provided. The fluid can include a liquid solvent, one or more surfactants, a proppant-forming compound, and one or more curing agents. The liquid reacts to form proppant in-situ under downhole conditions.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: August 25, 2020
    Assignee: CNPC USA CORPORATION
    Inventors: Lijun Lin, Jiangshui Huang, Litao Bai, Stephanie Yu, Fuchen Liu, Congbin Yin, Wei Gong
  • Publication number: 20200248064
    Abstract: A composition for an environmentally friendly hydrofracturing friction reducer product can be synthesized. A method for synthesis of a friction reducer emulsion can include using gas-to-liquid synthesized oil as a continuous phase in invert emulsion polymerization. The composition can be optimized by using a suitable amount of salt tolerant monomer for the best performance with salt tolerant features. Various inverting agents can be utilized for the self-inverting in brine with good product stability. The optimized friction reducer can be used in weighted brine hydrofracturing.
    Type: Application
    Filed: February 4, 2019
    Publication date: August 6, 2020
    Applicant: CNPC USA Corporation
    Inventors: Litao BAI, Lijun Lin
  • Publication number: 20200216750
    Abstract: Nano- and micro-particles (NMP) can be formed from an oil/water emulsion. The emulsion is made by mixing a liquid solvent, at least one surfactant, a particle-forming compound, and at least curing agent. If desired, pH control agents and viscosity enhancers can be added to the liquid solvent. The particle-forming compound and the curing agents are mixed together and form the oil phase in the emulsion and after curing, the particles are formed. The nano- and micro-particles can be used as proppant to enhance the conductivity of nano- and microfractures and fluid-loss-control additive for hydraulic fracturing operations.
    Type: Application
    Filed: January 4, 2019
    Publication date: July 9, 2020
    Applicants: CNPC USA Corporation, Beijing Huamei Inc. CNPC
    Inventors: Lijun Lin, Jiangshui Huang, Fuchen Liu, Lulu Song, Zhenzhou Yang, Yu Liu, Hanxiao Wang
  • Publication number: 20200131433
    Abstract: A hydraulic fracture fluid is provided. The fluid can include a liquid solvent, one or more surfactants, a proppant-forming compound, and one or more curing agents. The liquid reacts to form proppant in-situ under downhole conditions.
    Type: Application
    Filed: October 25, 2018
    Publication date: April 30, 2020
    Applicant: CNPC USA CORPORATION
    Inventors: Lijun Lin, Jiangshui Huang, Litao Bai, Stephanie Yu, Fuchen Liu, Congbin Yin, Wei Gong
  • Patent number: 10499340
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine, using a real-time clock (RTC) included in a microcontroller, that a modem module is to exit a power saving mode; instruct a load switch to connect the modem module to a battery of the UE based at least in part on the determination; and instruct the modem module to exit the power saving mode based at least in part on the determination. Numerous other aspects are provided.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: December 3, 2019
    Assignee: Qualcomm Incorporated
    Inventors: Lijun Lin, Vieri Vanghi, Liangchi Hsu
  • Patent number: 10455512
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine, using a real-time clock (RTC) included in a microcontroller, that a modem module is to exit a power saving mode; instruct a load switch to connect the modem module to a battery of the UE based at least in part on the determination; and instruct the modem module to exit the power saving mode based at least in part on the determination. Numerous other aspects are provided.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: October 22, 2019
    Assignee: Qualcomm Incorporated
    Inventors: Lijun Lin, Vieri Vanghi, Liangchi Hsu
  • Patent number: 9950952
    Abstract: Pumpable process-fluid compositions and methods for establishing hydraulic isolation in cemented subterranean wells comprise more than 1 wt % polyacrylamide and a non-metallic crosslinker. Upon entering voids and cracks in or adjacent to a cement sheath, and contacting the set-cement surfaces, the compositions react and form a seal that prevents further leakage.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: April 24, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Lijun Lin, Philip F. Sullivan, Gary John Tustin
  • Patent number: 9942852
    Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more specifically, to power savings based on distributed enhanced machine type communication (eMTC) functions, for example, between an applications processor and a modem of an eMTC device. An example method generally includes entering a power saving mode (PSM), wherein entering the PSM includes performing a first power collapse of an applications processor of the wireless node and a modem of the wireless node into a low power state; exiting the PSM at expiry of a wake-up timer, wherein exiting the PSM includes waking up the applications processor and the modem from the low power state to an active power state; and in response to exiting the PSM, performing a second power collapse of the applications processor into the low power state while the modem operates in the active power state.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: April 10, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Liangchi Hsu, Srinivasan Balasubramanian, Lijun Lin
  • Patent number: 9904458
    Abstract: A method for information processing is provided in the disclosure. The method includes: acquiring a first operation of a user; determining a first application and generating a first instruction based on the first operation, wherein the first instruction is adapted to set the first application to a first mode; setting the first application to the first mode based on the first instruction; acquiring a second operation of the user; generating a second instruction based on the second operation; not distributing the second instruction to the first application in the case where it is determined that the second operation belongs to a first type of operation event; and distributing the second instruction to a corresponding application in the case where it is determined that the second operation does not belong to the first type of operation event. An electronic apparatus is further provided in the disclosure.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: February 27, 2018
    Assignee: Lenovo (Beijing) Co., Ltd.
    Inventors: Shaofeng Zhu, Lijun Lin
  • Patent number: 9841944
    Abstract: A method for processing information applied in an electronic apparatus is provided. The method includes: acquiring a first operation to trigger the multi-window manager; displaying the multi-window management interface corresponding to the multi-window manager in the touch-control display unit based on the first operation; displaying the at least one object identifier corresponding to the at least one application in the multi-window management interface, and displaying running status information corresponding to the at least one application. Using the technical solution of the present invention, the user is able to know the applications which may be displayed in a form of a small window and the current running status thereof conveniently and quickly by means of a multi-window management interface, and thereby the user experience is improved.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: December 12, 2017
    Assignee: Lenovo (Beijing) Co., Ltd.
    Inventors: Guizhen Wang, Lijun Lin, Jing Wang, Leilei Zhao
  • Patent number: 9834719
    Abstract: Pumpable process-fluid compositions comprise polyacrylamide, a non-metallic crosslinker and a pH-adjustment material. Such compositions have utility in the context of controlling lost circulation in subterranean wells. Upon entering at least one lost circulation zone, the compositions crosslink, thereby forming a barrier that minimizes or stops fluid flow from the wellbore into the lost circulation zone.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: December 5, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Lijun Lin, Quanxin Guo, Brent Busby, Philip F. Sullivan
  • Publication number: 20170201943
    Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more specifically, to enhanced or evolved machine type communication (eMTC) power saving mode (PSM) enhancements for service outage. An example method generally includes receiving, from a modem of the wireless node, a first indication that indicates at least one of: network connectivity or network accessibility at the wireless node; receiving, from an applications processor of the wireless node, a second indication that indicates at least one of: server accessibility or availability of one or more applications; and determining when to enter a PSM based, at least in part, on at least one of: the first or second indications.
    Type: Application
    Filed: December 1, 2016
    Publication date: July 13, 2017
    Inventors: Liangchi HSU, Srinivasan BALASUBRAMANIAN, Lijun LIN
  • Publication number: 20170201946
    Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more specifically, to power savings based on distributed enhanced machine type communication (eMTC) functions, for example, between an applications processor and a modem of an eMTC device. An example method generally includes entering a power saving mode (PSM), wherein entering the PSM includes performing a first power collapse of an applications processor of the wireless node and a modem of the wireless node into a low power state; exiting the PSM at expiry of a wake-up timer, wherein exiting the PSM includes waking up the applications processor and the modem from the low power state to an active power state; and in response to exiting the PSM, performing a second power collapse of the applications processor into the low power state while the modem operates in the active power state.
    Type: Application
    Filed: January 5, 2017
    Publication date: July 13, 2017
    Inventors: Liangchi HSU, Srinivasan BALASUBRAMANIAN, Lijun LIN
  • Publication number: 20170158939
    Abstract: This invention relates to compositions and methods for treating subterranean formations, in particular, oilfield stimulation compositions and methods using water-in-water polymer emulsions to uniformly dissolve a rheologically active polymer, such as a thickener or friction reducer, in the treatment fluid. The emulsions have a low viscosity and are easily pumped for mixing into a treatment fluid, where upon dilution with an aqueous medium, the polymer is easily hydrated without forming fish-eyes. The partitioning agent in the water-in-water emulsion does not generally affect the rheology of the treatment fluid. The invention also relates to further processing of the emulsion by wet grinding, high shear mixing and/or heating to enhance the hydration rate in the preparation of the well treatment fluid.
    Type: Application
    Filed: February 21, 2017
    Publication date: June 8, 2017
    Inventors: Yiyan Chen, Lijun Lin, Philip F. Sullivan
  • Patent number: 9658734
    Abstract: The present invention relates to communication technology and discloses an information processing method and an electronic device. The information processing method is applied in an electronic device. The touch display unit is capable of displaying at least one target object associated with the first application and displaying the first application in a small window or a full-screen window in response to the target object being touched. The full-screen window has a display area equal to an area where the touch display unit can accept a touch event and the small window has a display area smaller than the area where the touch display unit can accept a touch event. The small window is obtained by converting the full-screen window based on a first conversion parameter.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: May 23, 2017
    Assignees: Beijing Lenovo Software Ltd., Lenovo (Beijing) Limited
    Inventor: Lijun Lin
  • Patent number: 9574128
    Abstract: This invention relates to compositions and methods for treating subterranean formations, in particular, oilfield stimulation compositions and methods using water-in-water polymer emulsions to uniformly dissolve a rheologically active polymer, such as a thickener or friction reducer, in the treatment fluid. The emulsions have a low viscosity and are easily pumped for mixing into a treatment fluid, where upon dilution with an aqueous medium, the polymer is easily hydrated without forming fish-eyes. The partitioning agent in the water-in-water emulsion does not generally affect the rheology of the treatment fluid. The invention also relates to further processing of the emulsion by wet grinding, high shear mixing and/or heating to enhance the hydration rate in the preparation of the well treatment fluid.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: February 21, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yiyan Chen, Lijun Lin, Philip F. Sullivan
  • Publication number: 20160230071
    Abstract: Compositions comprise polyacrylamide, a non-metallic crosslinker and a pH-adjustment material. Such compositions have utility in the context of remedial cementing, plug cementing in particular. The compositions may be pumped into a subterranean well, where they polymerize and form a support on which a cement plug may sit. The support may maintain the position of the cement plug in the wellbore and minimize cement-plug contamination.
    Type: Application
    Filed: September 20, 2012
    Publication date: August 11, 2016
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Lijun Lin, Philip F. Sullivan, Dominique Guillot, Bruno Drochon