Patents by Inventor Lili Cui

Lili Cui 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: 20220298405
    Abstract: The invention relates to the field of oilfield chemistry, and discloses a self-repairing plugging gel polymer for drilling fluid, a preparation method and application thereof, and the drilling fluid containing the gel polymer, wherein the polymer contains a structural unit A, a structural unit B, a structural unit C and a structural unit D, and the structural unit A is a structural unit with a structure shown in the formula (1); the structural unit B is a structural unit with a structure shown in the formula (2); the structural unit C is a structural unit with a structure shown in the formula (3); the structural unit D is a structural unit having a structure represented by the formula (4).
    Type: Application
    Filed: November 2, 2021
    Publication date: September 22, 2022
    Applicant: China University of Petroleum (Beijing)
    Inventors: Lili YANG, Chunlin XIE, Guancheng JIANG, Tian AO, Dechang KONG, Kaixiao CUI
  • Patent number: 11379960
    Abstract: Embodiments of the present disclosure provides an image processing method, comprising: acquiring an initial image comprising an image of pupil; acquiring an accumulative histogram set of grayscale values of pixels in the initial image; determining a threshold for binarizing the initial image according to a grayscale value corresponding to a target region in respective accumulative histograms in the accumulative histogram set, wherein the target region corresponds to the image of pupil in the initial image; and binarizing the initial image according to the threshold. An image processing apparatus and a wearable device are further provided.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: July 5, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Gang Li, Lili Chen, Jiankang Sun, Fuqiang Ma, Liyang Cui, Minglei Chu, Yachong Xue
  • Publication number: 20180273712
    Abstract: Disclosed herein are ethylene-based polymers having low densities and narrow molecular weight distributions, but high melt strengths for blown film processing. Such polymers can be produced by peroxide-treating a metallocene-catalyzed resin.
    Type: Application
    Filed: May 25, 2018
    Publication date: September 27, 2018
    Inventors: Lili Cui, Ashish M. Sukhadia, Vivek Rohatgi
  • Patent number: 10017617
    Abstract: Disclosed herein are ethylene-based polymers having low densities and narrow molecular weight distributions, but high melt strengths for blown film processing. Such polymers can be produced by peroxide-treating a metallocene-catalyzed resin.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: July 10, 2018
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Lili Cui, Ashish M. Sukhadia, Vivek Rohatgi
  • Publication number: 20170306114
    Abstract: Disclosed herein are ethylene-based polymers having low densities and narrow molecular weight distributions, but high melt strengths for blown film processing. Such polymers can be produced by peroxide-treating a metallocene-catalyzed resin.
    Type: Application
    Filed: July 7, 2017
    Publication date: October 26, 2017
    Inventors: Lili Cui, Ashish M. Sukhadia, Vivek Rohatgi
  • Patent number: 9732197
    Abstract: Disclosed herein are ethylene-based polymers having low densities and narrow molecular weight distributions, but high melt strengths for blown film processing. Such polymers can be produced by peroxide-treating a metallocene-catalyzed resin.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: August 15, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Lili Cui, Ashish M. Sukhadia, Vivek Rohatgi
  • Patent number: 9605100
    Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can employ a catalyst system containing two or three metallocene components, resulting in ethylene-based copolymers that can have a medium density and improved stress crack resistance.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: March 28, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Mark L. Hlavinka, Errun Ding, Paul DesLauriers, Yongwoo Inn, Lili Cui, Qing Yang, Ashish M. Sukhadia, Guylaine St. Jean, Richard M. Buck
  • Publication number: 20160304644
    Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can employ a catalyst system containing two or three metallocene components, resulting in ethylene-based copolymers that can have a medium density and improved stress crack resistance.
    Type: Application
    Filed: June 27, 2016
    Publication date: October 20, 2016
    Inventors: Mark L. Hlavinka, Errun Ding, Paul DesLauriers, Yongwoo Inn, Lili Cui, Qing Yang, Ashish M. Sukhadia, Guylaine St. Jean, Richard M. Buck
  • Publication number: 20160229967
    Abstract: Disclosed herein are ethylene-based polymers having low densities and narrow molecular weight distributions, but high melt strengths for blown film processing. Such polymers can be produced by peroxide-treating a metallocene-catalyzed resin.
    Type: Application
    Filed: April 21, 2016
    Publication date: August 11, 2016
    Inventors: Lili Cui, Ashish M. Sukhadia, Vivek Rohatgi
  • Patent number: 9394393
    Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can employ a catalyst system containing two or three metallocene components, resulting in ethylene-based copolymers that can have a medium density and improved stress crack resistance.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: July 19, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Mark L. Hlavinka, Errun Ding, Paul DesLauriers, Yongwoo Inn, Lili Cui, Qing Yang, Ashish Sukhadia, Guylaine St. Jean, Richard M. Buck
  • Patent number: 9346897
    Abstract: Disclosed herein are ethylene-based polymers having low densities and narrow molecular weight distributions, but high melt strengths for blown film processing. Such polymers can be produced by peroxide-treating a metallocene-catalyzed resin.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: May 24, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Lili Cui, Ashish M. Sukhadia, Vivek Rohatgi
  • Publication number: 20150376312
    Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can employ a catalyst system containing two or three metallocene components, resulting in ethylene-based copolymers that can have a medium density and improved stress crack resistance.
    Type: Application
    Filed: September 2, 2015
    Publication date: December 31, 2015
    Inventors: Mark L. Hlavinka, Errun Ding, Paul DesLauriers, Yongwoo Inn, Lili Cui, Qing Yang, Ashish Sukhadia, Guylaine St. Jean, Richard M. Buck
  • Patent number: 9156970
    Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can employ a catalyst system containing two or three metallocene components, resulting in ethylene-based copolymers that can have a medium density and improved stress crack resistance.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: October 13, 2015
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Mark L. Hlavinka, Errun Ding, Paul DesLauriers, Yongwoo Inn, Lili Cui, Qing Yang, Ashish Sukhadia, Guylaine St. Jean, Richard M. Buck
  • Publication number: 20150065669
    Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can employ a catalyst system containing two or three metallocene components, resulting in ethylene-based copolymers that can have a medium density and improved stress crack resistance.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 5, 2015
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Mark L. Hlavinka, Errun Ding, Paul DesLauriers, Yongwoo Inn, Lili Cui, Qing Yang, Ashish Sukhadia, Guylaine St. Jean, Richard M. Buck
  • Publication number: 20140342141
    Abstract: Disclosed herein are ethylene-based polymers having low densities and narrow molecular weight distributions, but high melt strengths for blown film processing. Such polymers can be produced by peroxide-treating a metallocene-catalyzed resin.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 20, 2014
    Inventors: Lili Cui, Ashish M. Sukhadia, Vivek Rohatgi
  • Patent number: D905318
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: December 15, 2020
    Inventor: Lili Cui
  • Patent number: D905319
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: December 15, 2020
    Inventor: Lili Cui