Patents by Inventor Qinglin Wu

Qinglin Wu 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: 20210264622
    Abstract: Disclosed are a video stitching method and a video stitching device. The video stitching method is applicable for stitching a first video and a second video, and includes: performing feature extraction, feature matching and screening on a first target frame of the first video and a second target frame of the second video, so as to obtain a first feature point pair set; performing forward tracking on the first target frame and the second target frame, so as to obtain a second feature point pair set; performing backward tracking on the first target frame and the second target frame, so as to obtain a third feature point pair set; and calculating a geometric transformation relationship between the first target frame and the second target frame according to a union of the first feature point pair set, the second feature point pair set and the third feature point pair set.
    Type: Application
    Filed: December 24, 2019
    Publication date: August 26, 2021
    Applicant: TSINGHUA UNIVERSITY
    Inventors: Huaqiang WU, Qinglin HE, Chen HU, WANG Xuguang
  • Patent number: 11028307
    Abstract: Bentonite (or other clay) water-based drilling fluids incorporating functionalized cellulose nanocrystals are disclosed. Cellulose nanocrystals are modified with tailored surface charges or tailored levels of salt-tolerant polymer grafting, and combined with bentonite (or other clay) nanoplatelets in an aqueous suspension. Thermal performance of drilling fluids can also be enhanced by surface grafting of thermally functional polymers onto cellulose nanocrystals.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: June 8, 2021
    Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventors: Qinglin Wu, Meichun Li
  • Patent number: 10882747
    Abstract: A high-strength network structured nano-carrier material and a preparation method and application thereof. A nano-cellulose solution and graphene are mixed and ultrasonication is performed in an ultrasonic pulverizer to obtain a nano-cellulose/graphene suspension. The suspension with a phenolic resin adhesive is mixed and stirred to obtain a nano-cellulose/graphene/phenolic resin suspension. The nano-cellulose/graphene/phenolic resin suspension is injected into a mold. The mold is placed in a freeze dryer for freezing and vacuum dried in two stages to obtain a nano-cellulose/graphene/phenolic resin aerogel. The aerogel is preheated and cured in a muffle furnace, then subjected to a high-temperature thermal decomposition treatment in a tube furnace to obtain a nano-carrier material having a high-strength network structure. The preparation method is simple and convenient, low in cost, environmentally friendly and green.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: January 5, 2021
    Assignee: CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
    Inventors: Yiqiang Wu, Zhen Zhang, Yan Qing, Qinglin Wu, Sha Luo, Cuihua Tian, Lei Li
  • Patent number: 10822752
    Abstract: An artificial turf system has polymeric turf fibers resembling grass, and infill particles interspersed among said turf fibers. At least some of the infill comprises synthetic composite particles containing a thermoplastic polymer and cellulosic fibers, in which thermoplastic polymer is a matrix that binds together the other components of each synthetic particle into a composite particle.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: November 3, 2020
    Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventor: Qinglin Wu
  • Patent number: 10620156
    Abstract: The invention discloses a metal nanoparticles/nanocellulose composites-based non-enzymatic electrochemical glucose sensor, comprising a three-electrode system composed of a working electrode, a counter electrode, and a reference electrode. The surface of the working electrode is coated with a metal nanoparticles/nanocellulose composites. The surface of the nanocellulose is modified with a strong cationic conducting polymer. The invention promotes the sensitivity and selectivity of glucose sensing with the linear range of 4 ?M-15 mM and the detection limit of 1.4 ?M. Therefore, the sensor possesses high sensitivity, high response speed, stable performance and high anti-interference ability. The preparation method of the metal nanoparticles/nanocellulose composites-based non-enzymatic electrochemical glucose sensor is simple and the cost is low. And enzyme is introduced into the preparation process.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: April 14, 2020
    Assignee: Energy Research Institute Co., Ltd, Henan Academy of Sciences
    Inventors: Tingzhou Lei, Lili Dong, Xiuqiang Zhang, Suxia Ren, Qinglin Wu, Gaofeng Chen, Guihua Yan
  • Publication number: 20190228062
    Abstract: Disclosed is a method for rendering a cell page, the method including: obtaining, by a server, a preset editor and a worksheet to be processed, where the worksheet includes multiple cells; in response to detection of a click event at the location of any one of the multiple cells, obtaining a table attribute of the cell based on the editor; and initializing a worksheet element for the cell based on the obtained table attribute, to realize the rendering of the cell page, where the worksheet includes a text entry box, a drop-down box, a selection box, or a date selection box. Further disclosed are an apparatus and a server for rendering a cell page, as well as a readable storage medium.
    Type: Application
    Filed: February 10, 2018
    Publication date: July 25, 2019
    Inventors: Qinglin Wu, Jinping Liu, Jianhu Huang, Chao Wang
  • Publication number: 20190127625
    Abstract: Bentonite (or other clay) water-based drilling fluids incorporating functionalized cellulose nanocrystals are disclosed. Cellulose nanocrystals are modified with tailored surface charges or tailored levels of salt-tolerant polymer grafting, and combined with bentonite (or other clay) nanoplatelets in an aqueous suspension. Thermal performance of drilling fluids can also be enhanced by surface grafting of thermally functional polymers onto cellulose nanocrystals.
    Type: Application
    Filed: October 31, 2018
    Publication date: May 2, 2019
    Applicant: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventors: Qinglin Wu, Meichun Li
  • Publication number: 20190077667
    Abstract: A high-strength network structured nano-carrier material and a preparation method and application thereof. A nano-cellulose solution and graphene are mixed and ultrasonication is performed in an ultrasonic pulverizer to obtain a nano-cellulose/graphene suspension. The suspension with a phenolic resin adhesive is mixed and stirred to obtain a nano-cellulose/graphene/phenolic resin suspension. The nano-cellulose/graphene/phenolic resin suspension is injected into a mold. The mold is placed in a freeze dryer for freezing and vacuum dried in two stages to obtain a nano-cellulose/graphene/phenolic resin aerogel. The aerogel is preheated and cured in a muffle furnace, then subjected to a high-temperature thermal decomposition treatment in a tube furnace to obtain a nano-carrier material having a high-strength network structure. The preparation method is simple and convenient, low in cost, environmentally friendly and green.
    Type: Application
    Filed: August 21, 2018
    Publication date: March 14, 2019
    Inventors: YIQIANG WU, ZHEN ZHANG, YAN QING, QINGLIN WU, SHA LUO, CUIHUA TIAN, LEI LI
  • Publication number: 20180179711
    Abstract: An artificial turf system has polymeric turf fibers resembling grass, and infill particles interspersed among said turf fibers. At least some of the infill comprises synthetic composite particles containing a thermoplastic polymer and cellulosic fibers, in which thermoplastic polymer is a matrix that binds together the other components of each synthetic particle into a composite particle.
    Type: Application
    Filed: June 10, 2016
    Publication date: June 28, 2018
    Applicant: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventor: Qinglin Wu
  • Publication number: 20170276640
    Abstract: The invention discloses a metal nanoparticles/nanocellulose composites-based non-enzymatic electrochemical glucose sensor, comprising a three-electrode system composed of a working electrode, a counter electrode, and a reference electrode. The surface of the working electrode is coated with a metal nanoparticles/nanocellulose composites. The surface of the nanocellulose is modified with a strong cationic conducting polymer. The invention promotes the sensitivity and selectivity of glucose sensing with the linear range of 4 ?M-15 mM and the detection limit of 1.4 ?M. Therefore, the sensor possesses high sensitivity, high response speed, stable performance and high anti-interference ability. The preparation method of the metal nanoparticles/nanocellulose composites-based non-enzymatic electrochemical glucose sensor is simple and the cost is low. And enzyme is introduced into the preparation process.
    Type: Application
    Filed: June 5, 2017
    Publication date: September 28, 2017
    Inventors: Tingzhou LEI, Lili DONG, Xiuqiang ZHANG, Suxia REN, qinglin WU, Gaofeng CHEN, Guihua YAN
  • Patent number: 9453156
    Abstract: A method is disclosed for reducing lost circulation in drilling wells, employing composite materials as lost circulation materials. The composites comprise a thermoplastic polymer and cellulosic fibers. Optionally the composites may include other components such as calcium carbonate, clay, oil and other blending agents.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: September 27, 2016
    Assignee: Board of Supervisors of Louisiana State University And Agricultural and Mechanical College
    Inventor: Qinglin Wu
  • Patent number: 9366098
    Abstract: A method for reducing lost circulation in drilling wells employs composite materials containing an engineering thermoplastic polymer and mineral fibers. Optionally the composites may also include other components such as calcium carbonate and blending agents.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: June 14, 2016
    Assignee: Board of Supervisors of Louisiana State University And Agricultural and Mechanical College
    Inventor: Qinglin Wu
  • Publication number: 20140374110
    Abstract: A method is disclosed for reducing lost circulation in drilling wells, employing composite materials containing an engineering thermoplastic polymer and mineral fibers. Optionally the composites may also include other components such as calcium carbonate and blending agents.
    Type: Application
    Filed: January 24, 2013
    Publication date: December 25, 2014
    Inventor: Qinglin Wu
  • Publication number: 20140370422
    Abstract: We disclose novel metallic nanoparticles coated with a thin protective carbon shell, and three-dimensional nano-metallic sponges; methods of preparation of the nanoparticles; and uses for these novel materials, including wood preservation, strengthening of polymer and fiber/polymer building materials, and catalysis.
    Type: Application
    Filed: September 3, 2014
    Publication date: December 18, 2014
    Applicant: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventors: Kun Lian, Qinglin Wu
  • Patent number: 8828485
    Abstract: We disclose novel metallic nanoparticles coated with a thin protective carbon shell, and three-dimensional nano-metallic sponges; methods of preparation of the nanoparticles; and uses for these novel materials, including wood preservation, strengthening of polymer and fiber/polymer building materials, and catalysis.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: September 9, 2014
    Assignee: Board of Supervisors of Louisiana State University And Agricultural and Mechanical College
    Inventors: Kun Lian, Qinglin Wu
  • Publication number: 20120108472
    Abstract: A method is disclosed for reducing lost circulation in drilling wells, employing composite materials as lost circulation materials. The composites comprise a thermoplastic polymer and cellulosic fibers. Optionally the composites may include other components such as calcium carbonate, clay, oil and other blending agents.
    Type: Application
    Filed: August 11, 2009
    Publication date: May 3, 2012
    Inventor: Qinglin Wu
  • Publication number: 20120021222
    Abstract: We disclose novel metallic nanoparticles coated with a thin protective carbon shell, and three-dimensional nano-metallic sponges; methods of preparation of the nanoparticles; and uses for these novel materials, including wood preservation, strengthening of polymer and fiber/polymer building materials, and catalysis.
    Type: Application
    Filed: September 30, 2011
    Publication date: January 26, 2012
    Inventors: Kun Lian, Qinglin Wu
  • Publication number: 20110263758
    Abstract: A method is disclosed for recycling polymer containers contaminated with oil, for example used HDPE motor oil containers, in an energy efficient manner, that does not require a costly washing step. The commercial value of the polymers is preserved by converting the contaminated polymers into value-added products. Composites are made from discarded motor oil containers, the residual motor oil therein, cellulosic fibers, and blending agents or other additives. In one embodiment, the process uses the residual oil to advantage as a fiber blending agent, or to make polymer types in a blend more compatible with one another.
    Type: Application
    Filed: December 9, 2008
    Publication date: October 27, 2011
    Inventors: Qinglin Wu, Yong Lei
  • Publication number: 20090098033
    Abstract: We disclose novel metallic nanoparticles coated with a thin protective carbon shell, and three-dimensional nano-metallic sponges; methods of preparation of the nanoparticles; and uses for these novel materials, including wood preservation, strengthening of polymer and fiber/polymer building materials, and catalysis.
    Type: Application
    Filed: February 8, 2007
    Publication date: April 16, 2009
    Inventors: Kun Lian, Qinglin Wu