Patents by Inventor Zheng Chai
Zheng Chai 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).
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Patent number: 11959952Abstract: An anechoic chamber and a construction method thereof are provided, the anechoic chamber includes a top surface, being a polygon; trapezoid surfaces, corresponding to edges of top surface, upper edge lengths of trapezoid surface being equal to edge lengths of top surface, trapezoid surfaces being connected to edges of top surface through the upper edges, the trapezoid surfaces being sequentially connected along a circumferential direction of top surface, and being at angle to the top surface; rectangular surfaces, corresponding to the trapezoid surfaces, upper edge lengths of rectangular surface being equal to lower edge lengths of trapezoid surface, rectangular surfaces being connected to the trapezoid surfaces through the upper edges, the rectangular surfaces being sequentially connected along a circumferential direction of the lower edges of trapezoid surfaces, and being perpendicular to the top surface; and an absorbing material, disposed on the top surface, the trapezoid surfaces and the rectangular surfType: GrantFiled: November 7, 2023Date of Patent: April 16, 2024Assignee: BEIJING ORIENT INSTITUTE OF MEASUREMENT AND TESTInventors: Zibin He, Deqiang Song, Hao Xing, Huiru Zhang, Shujuan Song, Hao Chai, Zheng Li, Quan Chen, Yizhou Wang, Wenyu Cheng
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Publication number: 20240109792Abstract: A stormwater runoff treatment substrate includes a lower pyrite substrate layer and an upper biochar substrate layer. The lower pyrite substrate layer includes pyrite, oyster shell powder, and sandy materials in a volume ratio of 10:5:85. The upper biochar substrate layer includes biochar or activated carbon, organic nutrient soil, and sandy materials in a volume ratio of 20:3:77.Type: ApplicationFiled: December 10, 2023Publication date: April 4, 2024Inventors: Hongxiang CHAI, Zheng KONG, Zhiyu SHAO, Jingchen MA
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Publication number: 20240085872Abstract: Disclosed herein is a method and a data processing system for environment evaluation, and a computer-readable storage medium with a computer program for executing the aforementioned method stored thereon. A data processing system according to one aspect comprises: at least one processor; at least one memory; and a computer program stored on the memory and executable on the processor, wherein execution of the computer program on the processor results in the following operations: obtaining user evaluations of an environment and environmental parameter measurements from a plurality of mobile devices; and generating evaluation information about the environment from the user evaluations and the environmental parameter measurements.Type: ApplicationFiled: September 8, 2023Publication date: March 14, 2024Inventors: Kheh Chew Chai, Mann Fai Yip, Dan Zhou, Xiaohua Wang, Eric C Peterson, Mark Makwinski, Yiting Zheng
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Publication number: 20230407094Abstract: An antistripping composition, comprising a first triamine compound or a second amine compound, and less than 1 wt % of a nitrile compound. When the antistripping composition is used in a bitumen composition, the bitumen composition demonstrates 50% or more retained coating as measured according to AASHTO T 283 (2022), and a tensile strength ratio of at least 80% when measured according to ASTM D 3625 (2020).Type: ApplicationFiled: June 20, 2023Publication date: December 21, 2023Applicant: Ascend Performance Materials Operations LLCInventors: Zheng Chai, Eric Geiger, Chinenyeze Nwankwoala, Karana Shah
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Patent number: 11811780Abstract: Methods and systems for authenticating users based on user application activities are described herein. One or more questions and one or more answers may be generated and stored based on a history of user application activities associated with a user. The one or more questions and one or more answers may be generated randomly, and may relate to one or more other users. A request for access to a service may be received. Based on the request, a question associated with the history of user application activity may be selected and presented to the user. A candidate answer may be received from the user, and the user may be authenticated based on comparing the candidate answer to an answer associated with the question presented.Type: GrantFiled: April 13, 2022Date of Patent: November 7, 2023Assignee: Citrix Systems, Inc.Inventors: Fei Su, Zheng Chai
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Publication number: 20230151253Abstract: An adhesive composition comprising a first part comprising an epoxy resin and a second part comprising a multifunctional amine package. The multifunctional amine package comprises bis(hexamethylene)triamine and a synergist. The amine concentration is at least 10% less than the epoxy resin concentration and the adhesive composition demonstrates a sag resistance of greater than 40 mm.Type: ApplicationFiled: November 11, 2022Publication date: May 18, 2023Applicant: Ascend Performance Materials Operations LLCInventors: Zheng CHAI, Jefferson Thomas EBERT
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Publication number: 20230033363Abstract: A cleaning composition having an aqueous solutions containing amino carboxylic acid chelators comprising (a) trans-1,2-diaminocyclohexane-N,N,N?,N?-tetraacetic acid monohydrate or salt thereof or (b) iminodiacetic acid or salt thereof may be used as an alternative for phosphates, NTA, and/or EDTA. The cleaning composition is used in industrial, commercial, or residential settings.Type: ApplicationFiled: July 22, 2022Publication date: February 2, 2023Applicant: Ascend Performance Materials Operations LLCInventors: Zheng CHAI, Jefferson EBERT, Joshua ABELL
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Patent number: 11492710Abstract: Corrosion inhibitor compositions for reducing the corrosive effect of acidic environments on metallic substrates are provided herein. In particular, the present disclosure describes corrosion inhibitor compositions comprising a condensation product of a trifunctional amine and a fatty acid. The present disclosure also describes methods of preparing and of using such corrosion inhibitor compositions.Type: GrantFiled: November 13, 2020Date of Patent: November 8, 2022Assignee: Ascend Performance Materials Operations LLCInventors: Hamidreza Samouei, Salar Afra, Hisham Nasr-El-Din, Zheng Chai, Jefferson Thomas Ebert, Benjamin Haseltine
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Patent number: 11457337Abstract: Disclosed, among other things, is a computing system that may translate a first message, which is indicative of a first event of a remote application, into a format communicable over a control channel of a cellular network, and may send the first message to a client device over the control channel. Also disclosed is client device that may translate a second message, which is indicative an action to be taken with respect to the remote application, into a format communicable over the control channel, and may send the second message to the computing system over the control channel.Type: GrantFiled: March 19, 2021Date of Patent: September 27, 2022Assignee: Citrix Systems, Inc.Inventor: Zheng Chai
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Publication number: 20220239658Abstract: Methods and systems for authenticating users based on user application activities are described herein. One or more questions and one or more answers may be generated and stored based on a history of user application activities associated with a user. The one or more questions and one or more answers may be generated randomly, and may relate to one or more other users. A request for access to a service may be received. Based on the request, a question associated with the history of user application activity may be selected and presented to the user. A candidate answer may be received from the user, and the user may be authenticated based on comparing the candidate answer to an answer associated with the question presented.Type: ApplicationFiled: April 13, 2022Publication date: July 28, 2022Inventors: Fei Su, Zheng Chai
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Patent number: 11356455Abstract: Methods and systems for authenticating users based on user application activities are described herein. One or more questions and one or more answers may be generated and stored based on a history of user application activities associated with a user. The one or more questions and one or more answers may be generated randomly, and may relate to one or more other users. A request for access to a service may be received. Based on the request, a question associated with the history of user application activity may be selected and presented to the user. A candidate answer may be received from the user, and the user may be authenticated based on comparing the candidate answer to an answer associated with the question presented.Type: GrantFiled: December 3, 2019Date of Patent: June 7, 2022Assignee: Citrix Systems, Inc.Inventors: Fei Su, Zheng Chai
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Publication number: 20220154061Abstract: Disclosed herein are drilling fluid compositions suitable for use, for example, in drilling a well bore through a subterranean formation and other oil and gas operations. The drilling fluid compositions of the present disclosure include the condensation product of a trifunctional amine and a fatty acid and an oil base fluid. The present disclosure also described processes for preparing drilling fluid compositions.Type: ApplicationFiled: November 9, 2021Publication date: May 19, 2022Applicant: Ascend Performance Materials Operations LLCInventors: Salar Afra, Hamidreza Samouei, Hisham Nasr-El-Din, Zheng Chai, Jefferson Thomas Ebert, Benjamin Haseltine
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Publication number: 20220112129Abstract: Provided herein are antistripping compositions which may be used, for example, as additives to bitumen compositions such as asphalt concrete to prevent or reduce susceptibility to water damage. In particular, the antistripping compositions of the present disclosure have a triamine component and a nitrile component. Also provided herein are bitumen compositions, such as asphalt, having a portion of the described antistripping compositions as an additive.Type: ApplicationFiled: September 20, 2021Publication date: April 14, 2022Applicant: Ascend Performance Materials Operations LLCInventors: Zheng Chai, Jefferson Thomas Ebert, Chinenyeze Nwankwoala, David W. McNeece
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Publication number: 20220098526Abstract: A method of removing from a surface a solid sulfur-containing impurity composition comprising a sulfur-containing compound, the method comprising the step of dissolving sulfur-containing compound in the sulfur-containing impurity composition with a nitrile compound to form a treated sulfur-containing impurity composition comprising less than 99.5 wt % sulfur-containing compound, based on the total weight of the treated sulfur-containing impurity composition.Type: ApplicationFiled: September 23, 2021Publication date: March 31, 2022Applicant: Ascend Performance Materials Operations LLCInventors: Tanhee Galindo, Zheng Chai, Jefferson Thomas Ebert, Benjamin Haseltine
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Publication number: 20210297821Abstract: Disclosed, among other things, is a computing system that may translate a first message, which is indicative of a first event of a remote application, into a format communicable over a control channel of a cellular network, and may send the first message to a client device over the control channel. Also disclosed is client device that may translate a second message, which is indicative an action to be taken with respect to the remote application, into a format communicable over the control channel, and may send the second message to the computing system over the control channel.Type: ApplicationFiled: March 19, 2021Publication date: September 23, 2021Inventor: Zheng Chai
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Publication number: 20210147984Abstract: Corrosion inhibitor compositions for reducing the corrosive effect of acidic environments on metallic substrates are provided herein. In particular, the present disclosure describes corrosion inhibitor compositions comprising a condensation product of a trifunctional amine and a fatty acid. The present disclosure also describes methods of preparing and of using such corrosion inhibitor compositions.Type: ApplicationFiled: November 13, 2020Publication date: May 20, 2021Applicant: Ascend Performance Materials Operations LLCInventors: Hamidreza Samouei, Salar Afra, Hisham Nasr-El-Din, Zheng Chai, Jefferson Thomas Ebert, Benjamin Haseltine
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Patent number: 10986473Abstract: Disclosed, among other things, is a computing system that may translate a first message, which is indicative of a first event of a remote application, into a format communicable over a control channel of a cellular network, and may send the first message to a client device over the control channel. Also disclosed is client device that may translate a second message, which is indicative an action to be taken with respect to the remote application, into a format communicable over the control channel, and may send the second message to the computing system over the control channel.Type: GrantFiled: April 1, 2020Date of Patent: April 20, 2021Assignee: Citrix Systems, Inc.Inventor: Zheng Chai
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Publication number: 20210099458Abstract: Methods and systems for authenticating users based on user application activities are described herein. One or more questions and one or more answers may be generated and stored based on a history of user application activities associated with a user. The one or more questions and one or more answers may be generated randomly, and may relate to one or more other users. A request for access to a service may be received. Based on the request, a question associated with the history of user application activity may be selected and presented to the user. A candidate answer may be received from the user, and the user may be authenticated based on comparing the candidate answer to an answer associated with the question presented.Type: ApplicationFiled: December 3, 2019Publication date: April 1, 2021Inventors: Fei Su, Zheng Chai
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Patent number: 9873664Abstract: A surface active agent comprising an arylated methyl ester of a fatty acid, or mixture of fatty acids, derived from biodiesel or a triglyceride source is disclosed. The fatty acid mixture is condensed to methyl esters and alkylated with aromatic substituents under Friedel-Crafts conditions. The alkylated methyl esters may be alkoxylated using a catalyst derived from fatty acids, alkaline earth salts, and strong acids. The resulting nonionic surfactant may also be sulfonated to produce one class of anionic surfactants. The alkylated methyl esters may also be directly sulfonated to produce another class of anionic surfactants.Type: GrantFiled: December 9, 2016Date of Patent: January 23, 2018Assignee: HUNTSMAN PETROCHEMICAL LLCInventors: George A Smith, Daniel R. Weaver, Zheng Chai
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Publication number: 20170305844Abstract: A surface active agent comprising an arylated methyl ester of a fatty acid, or mixture of fatty acids, derived from biodiesel or a triglyceride source is disclosed. The fatty acid mixture is condensed to methyl esters and alkylated with aromatic substituents under Friedel-Crafts conditions. The alkylated methyl esters may be alkoxylated using a catalyst derived from fatty acids, alkaline earth salts, and strong acids. The resulting nonionic surfactant may also be sulfonated to produce one class of anionic surfactants. The alkylated methyl esters may also be directly sulfonated to produce another class of anionic surfactants.Type: ApplicationFiled: December 9, 2016Publication date: October 26, 2017Inventors: George A. Smith, Daniel R. Weaver, Zheng Chai