Patents by Inventor Zheng Lu

Zheng Lu 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: 20170145300
    Abstract: Proppants for use in subterranean formations and methods for fracturing a subterranean formation penetrated by a wellbore are provided. The proppant material comprises a particulate body having a hydrophobic surface. The method involves introducing a plurality of the particulate bodies into an aqueous fluid to produce a fracturing fluid. Subsequently, the fracturing fluid is introduced into the wellbore at or above a pressure sufficient to create or enhance at least one fracture in the subterranean formation. The proppant material has an increased buoyance factor within the aqueous fluid than a similar proppant material without the hydrophobic surface.
    Type: Application
    Filed: August 28, 2014
    Publication date: May 25, 2017
    Inventors: Zheng LU, Tingji TANG, Humberto Almeida OLIVEIRA
  • Publication number: 20170145299
    Abstract: The invention provides metal-organic frame-works (MOFs) and its compositions for use as proppants in a method of treating subterranean formations.
    Type: Application
    Filed: July 15, 2014
    Publication date: May 25, 2017
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Nathan Carl Schultheiss, Zheng Lu, Humberto Almeida Oliveira, Denise Nicole Benoit, Chandra Sekhar Palla-Venkata
  • Patent number: 9528034
    Abstract: This invention relates to flexible cyanoacrylate-containing compositions, having improved torsion stress resistance particularly when bonded to plastic substrates.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: December 27, 2016
    Assignee: Henkel IP & Holding GmbH
    Inventors: Ling Li, Joseph B. Schulz, Zheng Lu, Andrew Scott
  • Patent number: 9409932
    Abstract: Compounds useful as a photoinitiator and/or photosensitizer represented by the following formula (I): wherein R1 and R2 each independently designates an alkyl group of 1 to 12 carbon atoms or a cycloalkyl group of 5 or 6 carbon atoms or R1 and R2 form together with the carbon atom to which they are attached a cycloaliphatic ring of 5 or 6 carbon atoms, Si* represents an organopolysiloxane residue bonded via a silicon atom of this residue to the oxygen shown in formula (I), or a silane group SiR4R5R6, wherein R4, R5 and R6 each independently designates an alkyl group of 1 to 12 carbon atoms, a cycloalkyl group of 5 or 6 carbon atoms or an aryl group of 6 to 10 carbon atoms, and R3 designates a hydrogen atom or a group represented by the following formula (II) wherein R7 and R8 each independently designates an alkyl group of 1 to 12 carbon atoms or a cycloalkyl group of 5 or 6 carbon atoms or R7 and R8 form together with the carbon atom to which they are attached a cycloaliphatic ring of 5 or
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: August 9, 2016
    Assignees: Henkel IP & Holding GmbH, Henkel AG & Co. KGaA
    Inventors: Zhiming Pasing Li, Yong Zhang, Jinyou Li, Zhixiang Lu, Zheng Lu
  • Publication number: 20160208159
    Abstract: A method of treating a well includes placing a first stream comprising a carrier fluid, a polymerizable small molecule cationic clay control monomer, and an optional polymerization initiator into a fracture in a clay-containing subterranean formation, allowing the small molecule cationic clay control monomer to at least partially adsorb to a portion of the surface of the clay, and polymerizing at least a portion of the adsorbed clay control monomer. A clay stabilizing fluid includes an aqueous base fluid, a polymerizable small molecule cationic clay control monomer, and a polymerization initiator.
    Type: Application
    Filed: January 21, 2015
    Publication date: July 21, 2016
    Inventors: Zheng LU, Kurt W. HOEMAN
  • Patent number: 9355330
    Abstract: A system provides product annotation in a video to one or more users. The system receives a video from a user, where the video includes multiple video frames. The system extracts multiple key frames from the video and generates a visual representation of the key frame. The system compares the visual representation of the key frame with a plurality of product visual signatures, where each visual signature identifies a product. Based on the comparison of the visual representation of the key frame and a product visual signature, the system determines whether the key frame contains the product identified by the visual signature of the product. To generate the plurality of product visual signatures, the system collects multiple training images comprising multiple of expert product images obtained from an expert product repository, each of which is associated with multiple product images obtained from multiple web resources.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: May 31, 2016
    Assignee: National University of Singapore
    Inventors: Tat Seng Chua, Guangda Li, Zheng Lu, Meng Wang
  • Publication number: 20160131693
    Abstract: The present invention provides a power-cable ground current self-adaptive monitoring method. The steps including configuring a sample baseline, determining an impact factor set of the sample data, sampling real-time data of ground current by a power-cable ground current monitoring system, perform digital filtering on the sampled real-time data of ground current, applying a self-adaptive method to process the filtered sample data, and uploading the processed sample data to a backend monitoring device for real-time monitoring. The present invention may solve high energy loss and low information amount problems. The power consumption of monitoring device may be reduced by more than 50%, and server resource occupancy percentage may be lowered by about 20%. Efficiencies of evaluating external insulation status of the are enhanced.
    Type: Application
    Filed: November 27, 2014
    Publication date: May 12, 2016
    Inventors: TAO YU, HUI ZHU, JIAN DU, ZHENG LU, HAO WANG
  • Publication number: 20160032491
    Abstract: Nitrogen-doped CZ silicon crystal ingots and wafers sliced therefrom are disclosed that provide for post epitaxial thermally treated wafers having oxygen precipitate density and size that are substantially uniformly distributed radially and exhibit the lack of a significant edge effect. Methods for producing such CZ silicon crystal ingots are also provided by controlling the pull rate from molten silicon, the temperature gradient and the nitrogen concentration. Methods for simulating the radial bulk micro defect size distribution, radial bulk micro defect density distribution and oxygen precipitation density distribution of post epitaxial thermally treated wafers sliced from nitrogen-doped CZ silicon crystals are also provided.
    Type: Application
    Filed: July 29, 2015
    Publication date: February 4, 2016
    Inventors: Zheng Lu, Gaurab Samanta, Tse-Wei Lu, Feng-Chien Tsai
  • Publication number: 20160017189
    Abstract: This invention relates to flexible cyanoacrylate-containing compositions, having improved torsion stress resistance particularly when bonded to plastic substrates.
    Type: Application
    Filed: September 28, 2015
    Publication date: January 21, 2016
    Inventors: Ling Li, Joseph B. Schulz, Zheng Lu, Andrew Scott
  • Publication number: 20150373075
    Abstract: Methods, apparatus, systems, and software for implementing context adaptive video streaming using multiple streaming connections. Original video content is split into multiple bitstreams at a video streaming server and streamed to a video streaming client. Higher-importance video content, such as I-frames and the base layer for scalable video coder (SVC) content are streamed over a high-priority streaming connection, while lower-importance video content is streamed over a low-priority streaming connection. The high-priority streaming connection may employ a reliable connection protocol such as TCP protocol, while the lower-priority connection may employ UDP or a modified TCP protocol under which some portions of the bitstream may be dropped. Cross-layer context adaptive streaming may be implemented under which context data such as network context and video application context information may be considered to adjust parameters associated with implement one or more streaming connections.
    Type: Application
    Filed: June 23, 2014
    Publication date: December 24, 2015
    Inventors: Radia Perlman, Vallabhajosyula S. Somayazulu, Hassnaa Moustafa, Jeffrey R. Foerster, Zheng Lu
  • Publication number: 20150266907
    Abstract: The present invention provides a compound represented by the following formula (I): wherein R1 and R2 each independently designates an alkyl group of 1 to 12 carbon atoms or a cycloalkyl group of 5 or 6 carbon atoms or R1 and R2 form together with the carbon atom to which they are attached a cycloaliphatic ring of 5 or 6 carbon atoms, Si* represents an organopolysiloxane residue bonded via a silicon atom of this residue to the oxygen shown in formula (I), or a silane group SiR4R5R6, wherein R4, R5 and R6 each independently designates an alkyl group of 1 to 12 carbon atoms, a cycloalkyl group of 5 or 6 carbon atoms or an aryl group of 6 to 10 carbon atoms, and R3 designates a hydrogen atom or a group represented by the following formula (II) wherein R7 and R8 each independently designates an alkyl group of 1 to 12 carbon atoms or a cycloalkyl group of 5 or 6 carbon atoms or R7 and R8 form together with the carbon atom to which they are attached a cycloaliphatic ring of 5 or 6 carbon atoms, an
    Type: Application
    Filed: June 3, 2015
    Publication date: September 24, 2015
    Inventors: Zhiming Pasing Li, Yong Zhang, Jinyou Li, Zhixiang Lu, Zheng Lu
  • Patent number: 9105318
    Abstract: A memory device operable to provide multi-port functionality, which may comprise a single-port memory having a first operating frequency that is at least twice of a second operation frequency of a multi-port memory, a read synchronization module that synchronizes a set of read signals from the second operation frequency to the first operating frequency, a write synchronization module that synchronizes a set of write signals from the second operation frequency to the first operating frequency, a read/write signal selector that integrates a set of synchronized read signals and a set of synchronized write signals into a set of input control signals of the single-port memory, and a read out data synchronization module configured to synchronize a set of read out data from the single-port memory with the second operation frequency of the multi-port memory.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: August 11, 2015
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Yu Chang, Wei-Zheng Lu, Fu-Chiang Jan
  • Publication number: 20150177935
    Abstract: A digital map based 3D-character geospatial virtual interaction system for social networking proposes a visual and audio presentation and virtual interaction system and methods for presenting 3D-characters which can be extended to other 3D objects (e.g. cars, buses, bikes, ships, planes, etc.) and presenting their animations and sounds for interactions on a digital map mimicking the actual persons' and/or objects' physical appearances, looks, shapes, voices, sounds, locations, movements, behaviours and interactions, some or all of which can be mimicked, the visual and audio presentation and virtual interaction system and methods being combined with a geographic information system (GIS) supported social networking platform which can store, manage and distribute geospatial and virtual interaction information along with other social networking information for use on the actual persons' computing devices (e.g., any type of computers, smartphones, tablets, microcontrollers, etc.).
    Type: Application
    Filed: December 20, 2013
    Publication date: June 25, 2015
    Inventor: Zheng Lu
  • Patent number: 9050589
    Abstract: Disclosed are metal-bound tetracarbene catalysts, such as iron based aziridination catalyst, having the formula: wherein X is a group 6, 7, 8, 9, or 10 metal and wherein Z is a hydrogen, alkyl, aryl or organic group, wherein the alkyl, aryl or organic group is optionally are independently substituted. In a specific example, a metal-bound tetracarbene catalyst has the formula: Also disclosed are methods of making (synthesizing), transmetallation reagents, these agents, metal-bound tetracarbene catalysts, and a method of catalytic alkene aziridination, using the disclosed metal-bound tetracarbene catalysts.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: June 9, 2015
    Assignee: University of Tennessee Research Foundation
    Inventors: David Matthew Jenkins, Steven Alan Cramer, Zheng Lu
  • Patent number: 9045387
    Abstract: The disclosure provides methods for the use of open metal frameworks to catalyze coupling reactions.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: June 2, 2015
    Assignees: The Regents of the University of California, BASF SE
    Inventors: Omar M. Yaghi, Alexander U. Czaja, Bo Wang, Zheng Lu
  • Publication number: 20140362651
    Abstract: A memory device operable to provide multi-port functionality, which may comprise a single-port memory having a first operating frequency that is at least twice of a second operation frequency of a multi-port memory, a read synchronization module that synchronizes a set of read signals from the second operation frequency to the first operating frequency, a write synchronization module that synchronizes a set of write signals from the second operation frequency to the first operating frequency, a read/write signal selector that integrates a set of synchronized read signals and a set of synchronized write signals into a set of input control signals of the single-port memory, and a read out data synchronization module configured to synchronize a set of read out data from the single-port memory with the second operation frequency of the multi-port memory.
    Type: Application
    Filed: October 24, 2013
    Publication date: December 11, 2014
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Yu CHANG, Wei-Zheng LU, Fu-Chiang JAN
  • Patent number: 8742152
    Abstract: The disclosure provides for metal catecholate frameworks, and methods of use thereof, including gas separation, gas storage, catalysis, tunable conductors, supercapacitors, and sensors.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: June 3, 2014
    Assignee: The Regents of the University of California
    Inventors: Omar M. Yaghi, Felipe Gandara-Barragan, Zheng Lu, Shun Wan
  • Publication number: 20140069007
    Abstract: A plant growth facilitating apparatus, for receiving and growing a plant, includes an accommodating body and a light emitting unit. The accommodating body defines an accommodating space for receiving the plant. The light emitting unit has a first LED set for emitting a red light in increasing the growth speed of the plant and a second LED set for emitting a blue light in promoting the photosynthesis of the plant. The wavelength range of the red light is 620-760 nanometer, and the wavelength range of the blue light is 360-480 nanometer. The light emitting unit is used for emitting light toward the accommodating space of the accommodating body, and the longest path of the light from the light emitting unit to the accommodating body is smaller than 1 meter.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Applicant: CASHIDO CORPORATION
    Inventors: SHIH-CHANG CHEN, CHUN-LUNG CHIU, YUAN-PENG LEE, PO-HUNG LAI, YI-ZHENG LU
  • Publication number: 20140029801
    Abstract: A system provides product annotation in a video to one or more users. The system receives a video from a user, where the video includes multiple video frames. The system extracts multiple key frames from the video and generates a visual representation of the key frame. The system compares the visual representation of the key frame with a plurality of product visual signatures, where each visual signature identifies a product. Based on the comparison of the visual representation of the key frame and a product visual signature, the system determines whether the key frame contains the product identified by the visual signature of the product. To generate the plurality of product visual signatures, the system collects multiple training images comprising multiple of expert product images obtained from an expert product repository, each of which is associated with multiple product images obtained from multiple web resources.
    Type: Application
    Filed: April 11, 2012
    Publication date: January 30, 2014
    Applicant: NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Tat Seng Chua, Guangda Li, Zheng Lu, Meng Wang
  • Publication number: 20130345431
    Abstract: Disclosed are metal-bound tetracarbene catalysts, such as iron based aziridination catalyst, having the formula: wherein X is a group 6, 7, 8, 9, or 10 metal and wherein Z is a hydrogen, alkyl, aryl or organic group, wherein the alkyl, aryl or organic group is optionally are independently substituted. In a specific example, a metal-bound tetracarbene catalyst has the formula: Also disclosed are methods of making (synthesizing), transmetallation reagents, these agents, metal-bound tetracarbene catalysts, and a method of catalytic alkene aziridination, using the disclosed metal-bound tetracarbene catalysts.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 26, 2013
    Inventors: David Matthew Jenkins, Steven Alan Cramer, Zheng Lu