Patents by Inventor Jianwei Yuan

Jianwei Yuan 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: 11105250
    Abstract: The present disclosure provides a rain shield assembly, a pipe assembly and a turbine fracturing unit. The rain shield assembly comprises at least two sets of cover plate assemblies, wherein each set of cover plate assembly comprises a cover plate, a transmission mechanism and a locking device. When the cover plate(s) is(are) at a closed position, the opening is covered; when the cover plate of each set of cover plate assembly is at an open position, an additional pipe structure which is open at both ends and extends along an extension direction of the pipe is formed by which. According to the present disclosure, the cover plate(s) of the rain shield assembly, when opened, will jointly form an additional pipe structure connected to the open end of the pipe to guide the exhaust gas of the pipe to a further space. Such an arrangement may reduce noise on the one hand, and prevent backflow of the exhaust gas on the other hand.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: August 31, 2021
    Assignee: YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.
    Inventors: Peng Zhang, Rikui Zhang, Shanwu Fu, Weipeng Yuan, Jianwei Wang, Zhuqing Mao
  • Publication number: 20210230400
    Abstract: A solution including an associative polymer, a cyclodextrin polymer, and a solvent is provided. The associative polymer is a powder in the absence of the solvent. Additionally, a method of making down an associative polymer powder to form a solution is provided. The method includes blending a mixture of the powder, a cyclodextrin polymer, and a solvent to yield the solution, wherein the powder includes particles having been dry-cut to a median particle size of from about 200 microns to about 10,000 microns. Additionally, a powder product is provided. The powder product includes from about 80 wt. % to about 99.9 wt. % associative polymer; and from about 0.1 wt. % to about 20 wt. % of a cyclodextrin polymer.
    Type: Application
    Filed: December 13, 2018
    Publication date: July 29, 2021
    Applicant: ECOLAB USA INC.
    Inventors: Heqing Huang, Mingli Wei, Xiaodong Huang, Jianwei Yuan, David Jordan, Weiguo Cheng
  • Patent number: 10654753
    Abstract: Additives including sulfur-containing compounds are used in methods of treating synthetic gypsum. The additives can thermally stabilize heavy metals, such as mercury. This thermal stabilization reduces mercury release from the synthetic gypsum. Illustrative, non-limiting examples of sulfur-containing compounds include inorganic sulfides, organic sulfides, organic compounds containing nitrogen and sulfur, organic compounds containing oxygen and sulfur, and polymers containing sulfur.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: May 19, 2020
    Assignee: ECOLAB USA INC.
    Inventors: Bruce A. Keiser, Wayne M. Carlson, Nicholas R. Denny, Jianwei Yuan, Tommy Hung-Ting Chen
  • Publication number: 20190300429
    Abstract: Additives including sulfur-containing compounds are used in methods of treating synthetic gypsum. The additives can thermally stabilize heavy metals, such as mercury. This thermal stabilization reduces mercury release from the synthetic gypsum. Illustrative, non-limiting examples of sulfur-containing compounds include inorganic sulfides, organic sulfides, organic compounds containing nitrogen and sulfur, organic compounds containing oxygen and sulfur, and polymers containing sulfur.
    Type: Application
    Filed: August 7, 2017
    Publication date: October 3, 2019
    Applicant: ECOLAB USA INC.
    Inventors: Bruce A. Keiser, Wayne M. Carlson, Nicholas R. Denny, Jianwei Yuan, Tommy Hung-Ting Chen
  • Publication number: 20190155851
    Abstract: This application discloses an information filtering method and an information processing apparatus. Shared information that is shared by a user account of an online service is obtained. A credibility reference rating associated with the user account is obtained. The credibility reference rating indicates account credibility of the user account. Whether the shared information satisfies a filtering condition is determined based on the credibility reference rating. Further, the shared information is filtered when the shared information is determined to satisfy the filtering condition.
    Type: Application
    Filed: January 29, 2019
    Publication date: May 23, 2019
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Xingya WANG, Qian Chen, Boen Liang, Jinzheng Zhang, Jianwei Yuan, Leming Fang, Chao Wan, Jilan Liang, Zijian He, Rui Tang, Zhike Liang, Xin Huang, Huankun Huang, Haixia Rao, Junwei Shen, Jun Zhang, Shuqin Sun, Pengfei Wang, Yingchao Liu, Wa Ye, Fei Huang, Jiasheng Huang, Zheqi Feng, Luting Chen, Shuwen Hu, Lingyun Xu
  • Patent number: 9122768
    Abstract: A method and mobile communications device for retrieving and presenting partial skipped content are provided. A display of a mobile communication device provides content of a first segment and a further segment of an electronic document received at the mobile communication device. Content between the first segment and the further segment is skipped content which has not been received. On the display, an indication of the skipped content is provided, the indication including a selectable client control for retrieving at least a portion of the skipped content.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: September 1, 2015
    Assignee: BlackBerry Limited
    Inventors: Olav A. Sylthe, Jianwei Yuan, Dan Dumitru
  • Patent number: 9023302
    Abstract: Methods for facilitating the removal of mercury from flue gases by converting elemental mercury to oxidized mercury and subsequently capturing the oxidized mercury. In one aspect, a method of removing mercury from a mercury-containing flue gas may include the steps of introducing into the flue gas a sulfide source in an effective amount to convert elemental mercury to gaseous oxidized mercury and then capturing the gaseous oxidized mercury.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: May 5, 2015
    Assignee: Ecolab USA Inc.
    Inventors: Bruce A. Keiser, Richard Mimna, Nicholas S. Ergang, Robert W. Dorner, Jianwei Yuan, Hung-Ting Chen
  • Publication number: 20140271418
    Abstract: Methods for facilitating the removal of mercury from flue gases by converting elemental mercury to oxidized mercury and subsequently capturing the oxidized mercury. In one aspect, a method of removing mercury from a mercury-containing flue gas may include the steps of introducing into the flue gas a sulfide source in an effective amount to convert elemental mercury to gaseous oxidized mercury and then capturing the gaseous oxidized mercury.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 18, 2014
    Applicant: ECOLAB USA INC.
    Inventors: Bruce A. Keiser, Richard Mimna, Nicholas S. Ergang, Robert W. Dorner, Jianwei Yuan, Hung-Ting Chen
  • Patent number: 8753599
    Abstract: A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: June 17, 2014
    Assignee: Nalco Company
    Inventors: Bruce A. Keiser, Jitendra T. Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L. Stiles, Richard Mimna, Wayne M. Carlson
  • Publication number: 20140145111
    Abstract: Methods for controlling mercury emissions and/or reducing corrosion of equipment used in combustion processes are provided, and more particularly, methods for controlling mercury re-emissions from a wet flue gas desulfurizer and/or reducing corrosion of the wet flue gas desulfurizer.
    Type: Application
    Filed: November 26, 2013
    Publication date: May 29, 2014
    Applicant: ECOLAB USA INC.
    Inventors: Bruce A. Keiser, Robert W. Dorner, Jianwei Yuan, Jitendra Shah, Wayne M. Carlson
  • Patent number: 8632742
    Abstract: Disclosed are methods for controlling, mercury emissions, and more particularly, to methods for controlling mercury re-emissions from a wet flue gas desulfurizer used in a combustion process. A method of controlling mercury re-emission from a combustion process includes measuring either mercury concentration, oxidation-reduction, potential (ORP), and/or sulfide concentration within a scrubber liquor of a wet flue gas desulpherizer (wFGD); correlating the mercury concentration, ORP, and /or sulfide concentration with an amount of mercury re-emission additive required in the scrubber liquor to reduce and/or prevent mercury re-emission to a selected level; and adjusting the rate of addition of mercury re-emission additive into the scrubber liquor to attain the selected level of mercury re-emission.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: January 21, 2014
    Assignee: Nalco Company
    Inventors: Bruce A. Keiser, Jitendra Shah, John V. Meier, Robert W. Dorner, Jianwei Yuan, Rebecca L. Stiles, Wayne Carlson, Darlington Mlambo
  • Patent number: 8617493
    Abstract: A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: December 31, 2013
    Assignee: Nalco Company
    Inventors: Bruce A. Keiser, Jitendra T Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L Stiles, Richard Mimna, Wayne M. Carlson
  • Patent number: 8609050
    Abstract: A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: December 17, 2013
    Assignee: Nalco Company
    Inventors: Bruce A. Keiser, Jitendra T. Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L. Stiles, Richard Mimna, Wayne M. Carlson
  • Patent number: 8585994
    Abstract: A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: November 19, 2013
    Assignee: Nalco Company
    Inventors: Bruce A. Keiser, Jitendra T. Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L. Stiles, Richard Mimna, Wayne M. Carlson
  • Patent number: 8572482
    Abstract: A document summary which includes an assemblage of a plurality of summary entries is generated for an electronic document. In the generation of the document summary, a content structure or properties within the electronic document are analyzed. The plurality of summary entries are selected from the contents of the electronic document based on the analysis of the content structure or properties. The content structure within the electronic document may include a table of contents, a plurality of spreadsheet worksheets, a plurality of document pages, etc. The content properties within the electronic document may include text formatting, paragraph formatting, paragraph sizing, etc. Preferably, the best available content structure or properties within the electronic document is identified and utilized in the selection of the plurality of summary entries. The document summary is provided to a mobile communication device in response to a request for the electronic document.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: October 29, 2013
    Assignee: BlackBerry Limited
    Inventors: Jianwei Yuan, Olav A. Sylthe
  • Publication number: 20120177555
    Abstract: A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.
    Type: Application
    Filed: February 6, 2012
    Publication date: July 12, 2012
    Inventors: Bruce A. Keiser, Jitendra T. Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L Stiles, Richard Mimna, Wayne M. Carlson
  • Publication number: 20120178864
    Abstract: A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.
    Type: Application
    Filed: February 6, 2012
    Publication date: July 12, 2012
    Inventors: Bruce A. Keiser, Jitendra T. Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L. Stiles, Richard Mimna, Wayne M. Carlson
  • Publication number: 20120177554
    Abstract: A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.
    Type: Application
    Filed: February 6, 2012
    Publication date: July 12, 2012
    Inventors: Bruce A. Keiser, Jitendra T. Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L. Stiles, Richard Mimma, Wayne M. Carlson
  • Publication number: 20120175554
    Abstract: A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.
    Type: Application
    Filed: February 6, 2012
    Publication date: July 12, 2012
    Inventors: Bruce A. Keiser, Jitendra T. Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L. Stiles, Richard Mimna, Wayne M. Carlson
  • Patent number: 8117238
    Abstract: A method of preparing a document for delivery to an electronic device including building a graph structure, include hyperlink nodes and bookmark nodes, representing a map of the document, and traversing and paginating the graph structure into successive pages each having a page index value. For each hyperlink node, the method includes storing in association with therewith a bookmark page index value that is the page index value of the page that includes the bookmark node having the bookmark that is the destination of the hyperlink of the hyperlink node. The pages may be selectively delivered to the electronic device. When a hyperlink in one of the pages is activated, the bookmark page index value that is stored in association with the corresponding hyperlink node may be identified, and the page that corresponds to the identified bookmark page index value may be transmitted to the electronic device.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: February 14, 2012
    Assignee: Research In Motion Limited
    Inventors: Jianwei Yuan, Olav A. Sylthe