Patents by Inventor Jianxin Ren
Jianxin Ren 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: 11958719Abstract: The present invention relates to the field of elevator braking, in particular to an action state detection method and system for an elevator brake, comprising: acquiring matching pairs of brake linings in the same braking state; constructing normal record data sets based on the matching pairs; grouping the normal record data sets based on braking power corresponding to samples in the normal record data sets to determine a median of elevator running speed corresponding to the samples in each group; dividing the operating state levels of the elevator brake according to the size of the median; constructing a data training set; training a constructed network model to obtain a trained network model; acquiring the operating state levels of an elevator to be detected by the trained network model, evaluating the elevator brake according to the operating state levels, and controlling the elevator.Type: GrantFiled: June 22, 2023Date of Patent: April 16, 2024Assignees: Changshu Institute of Technology, Dongnan Elevator Co., Ltd.Inventors: Yang Ge, Fusheng Zhang, Anbo Jiang, Lingyun Ma, Zhen Zhao, Jianxin Ding, Jiancong Qin, Yong Ren, Guodong Sun
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Publication number: 20240016198Abstract: A water-based electronic cigarette liquid is disclosed. The water-based electronic cigarette liquid includes the following ingredients in parts by mass: 5-60 parts of water, 5-50 parts of smoke ingredient which is solid at normal temperature and is soluble in water, and 0-30 parts of glycerol. The electronic cigarette liquid in this invention has environmental protection, high safety, comfortable smoking taste, high smoke producing effect, and low viscosity.Type: ApplicationFiled: January 20, 2020Publication date: January 18, 2024Applicants: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD., SHANGHAI NEW TOBACCO PRODUCT RESEARCH INSTITUTE CO., LTD., CHINA TOBACCO HENAN INDUSTRIAL CO., LTD.Inventors: Jianfu Liu, Jianhua Yi, Wen Du, Jiaruo Huang, Zhiguo Wang, Xinliang Tan, Kejun Zhong, Zhiwei Sun, Wei Liu, Jingbo Chen, Chao Tan, Chao Chen, Chaoying Chen, Jing Yang, Qishan Yuan, Xinqiang Yin, Xiaoyi Guo, Jianxin Ren
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Publication number: 20220319772Abstract: A high-performance Nd—Fe—B isotropic magnetic powder and a preparation method thereof are disclosed. The method includes S1, smelting and refining ingredients under vacuum to obtain an alloy ingot, crushing the alloy ingot to obtain an alloy block, wherein the smelting is conducted at a temperature of 1,350-1,450° C., and the refining is conducted at a temperature of 1,335-1,430° C. and a pressure of 900-1,100 Pa in an inert gas atmosphere for 3-7 minutes; S2, melting the alloy block obtained in step S1 to obtain an alloy solution, rapidly quenching the alloy solution to form a Nd—Fe—B rapidly-quenched alloy plate; S3, crushing the Nd—Fe—B rapidly-quenched alloy plate obtained in step S2 to obtain a magnetic powder; S4, subjecting the magnetic powder to a crystallization heat treatment in an inert gas atmosphere, and cooling to obtain the Nd—Fe—B isotropic magnetic powder.Type: ApplicationFiled: November 9, 2021Publication date: October 6, 2022Applicant: BAOTOU KERUI MICRO MAGNET NEW MATERIALS CO., LTD.Inventors: Jirong Lin, Ruigang Wang, Zhigang Wang, Jianxin Ren
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Publication number: 20210315268Abstract: A cooling cigarette filter and a cigarette are disclosed. The cooling cigarette filter comprises a cooling section (2). The cooling section (2) comprises a cooling stick (201) formed from paper (5). The cooling stick (201) has one or more holes (202) communicating two ends of the cooling stick. And the surface of the paper (5) is coated with a cooling material. The cooling cigarette filter has the advantages of ensuring the amount of smoke and lowering the temperature of the smoke entering the mouth. Through the combination design of the structure of the cooling stick and the type and amount of the cooling material, the smoke can flow out of a smoke generation section rapidly and smoothly And the temperature of the high-temperature smoke before entering the mouth can be significantly lowered, thereby improving the comfort and satisfaction of smoking.Type: ApplicationFiled: October 24, 2018Publication date: October 14, 2021Applicant: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.Inventors: Wei Luo, Kejun Zhong, Wen Du, Lanying Xie, Liangsheng Qin, Jianhui Wen, Duo Ding, Guoyong Xie, Jianxin Ren, Zhiwei Sun
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Patent number: 9469609Abstract: Provided are methods for the preparation of certain substituted pyrrolidine compounds, forms of (2S,4R)-1-(2-aminoacetyl)-4-benzamidopyrrolidine-2-carboxylic acid hydrochloride, and methods for preparing and using these forms.Type: GrantFiled: December 16, 2014Date of Patent: October 18, 2016Assignee: Zealand Pharma A/SInventors: Asaf R. Alimardanov, Lalitha Krishnan, Maotang Zhou, Ting-Zhong Wang, Jianxin Ren, John Leo Considine, Charles C. Wu, Jason Brazzillo, Panolil Raveendranath, Karen Sutherland, Mahmoud Mirmehrabi, Subodh S. Deshmukh
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Publication number: 20160278574Abstract: A detachable food griddle structure. A bottom heating plate is affixed to a base. A cover is rotatably coupled to a shaft that is mounted on the base, and a top heating plate is affixed to the underside of the cover. A bottom ring is removably coupled to the shaft above the heating plate, and a top ring is removably coupled to the base above the bottom ring. A cooking plate is removably coupled to an underside of the top ring.Type: ApplicationFiled: November 15, 2013Publication date: September 29, 2016Inventor: Jianxin Ren
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Publication number: 20150322007Abstract: Provided are methods for the preparation of certain substituted pyrrolidine compounds, forms of (2S,4R)-1-(2-aminoacetyl)-4-benzamidopyrrolidine-2-carboxylic acid hydrochloride, and methods for preparing and using these forms.Type: ApplicationFiled: December 16, 2014Publication date: November 12, 2015Inventors: Asaf R. ALIMARDANOV, Lalitha Krishnan, Maotang Zhou, Ting-Zhong Wang, Jianxin Ren, John Leo Considine, Charles C. Wu, Jason Brazzillo, Panolil Raveendranath, Karen Sutherland, Mahmoud Mirmehrabi, Subodh S. Deshmukh
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Patent number: 8927590Abstract: Provided are methods for the preparation of certain substituted pyrrolidine compounds, forms of (2S,4R)-1-(2-aminoacetyl)-4-benzamidopyrrolidine-2-carboxylic acid hydrochloride, and methods for preparing and using these forms.Type: GrantFiled: August 23, 2012Date of Patent: January 6, 2015Assignee: Zealand Pharma A/SInventors: Asaf R. Alimardanov, Lalitha Krishnan, Maotang Zhou, Ting-Zhong Wang, Jianxin Ren, John Leo Considine, Charles C. Wu, Jason Brazzillo, Panolil Raveendranath, Karen Sutherland, Mahmoud Mirmehrabi, Subodh S. Deshmukh, Girija Raveendranath, Vijay Raveendranath, Sanjay Raveendranath
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Publication number: 20130053344Abstract: Provided are methods for the preparation of certain substituted pyrrolidine compounds, forms of (2S,4R)-1-(2-aminoacetyl)-4-benzamidopyrrolidine-2-carboxylic acid hydrochloride, and methods for preparing and using these forms.Type: ApplicationFiled: August 23, 2012Publication date: February 28, 2013Applicant: Zealand Pharma A/SInventors: Asaf R. Alimardanov, Lalitha Krishnan, Maotang Zhou, Ting-Zhong Wang, Jianxin Ren, John Leo Considine, Charles C. Wu, Jason Brazzillo, Girija Raveendranath, Vijay Raveendranath, Sanjay Raveendranath, Karen Sutherland, Mahmoud Mirmehrabi, Subodh S. Deshmukh
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Patent number: 7838550Abstract: Processes for preparing sulfonamide trifluoroalkyl substituted alcohol compounds are provided. Desirably, the compounds are heterocyclic sulfonamide trifluoroalkyl substituted alcohol compounds or phenyl sulfonamide trifluoroalkyl substituted alcohol compounds.Type: GrantFiled: February 15, 2007Date of Patent: November 23, 2010Assignee: Wyeth LLCInventors: Anita Wai-Yin Chan, Jianxin Ren, Mousumi Ghosh, Panolil Raveendranath
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Publication number: 20100249207Abstract: Provided are methods for the preparation of certain substituted pyrrolidine compounds, forms of (2S,4R)-1-(2-aminoacetyl)-4-benzamidopyrrolidine-2-carboxylic acid hydrochloride, and methods for preparing and using these forms.Type: ApplicationFiled: January 19, 2010Publication date: September 30, 2010Applicant: Wyeth LLCInventors: Asaf R. Alimardanov, Lalitha Krishnan, Maotang Zhou, Ting-Zhong Wang, Jianxin Ren, John Leo Considine, Charles C. Wu, Jason Brazzillo, Panolil Raveendranath, Karen Sutherland, Mahmoud Mirmehrabi, Subodh S. Deshmukh, Girija Raveendranath, Vijay Raveendranath, Sanjay Raveendranath
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Patent number: 7687666Abstract: Processes for preparing amino alcohols or salts thereof and sulfonamide substituted alcohol compounds are provided. Desirably, the sulfonamide substituted alcohol compounds are heterocyclic sulfonamide trifluoroalkyl-substituted alcohol compounds or phenyl sulfonamide trifluoroalkyl-substituted alcohol compounds.Type: GrantFiled: February 15, 2007Date of Patent: March 30, 2010Assignee: WyethInventors: Anita Wai-Yin Chan, Jianxin Ren, Mousumi Ghosh, Arkadiy Rubezhov, Panolil Raveendranath, Joseph Zeldis
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Patent number: 7582771Abstract: A process for making the compound of formula (I) wherein Ac represents acetate; X represents O or CH2; Y represents C1-C6alkyl; and Z is selected from the group consisting of H, halogen, CN, CHO, CF3, OCF3, OH, C1-C6alkyl, C1-C6alkoxy, C1-C6thioalkyl, NH2, N(C1-C6alkyl)2, NH(C1-C6alkyl), NC(O)—(C1C6alkyl), and NO2. In his process, a compound of formula (II) is reacted with hydrazine to form a primary alkylamine, and then the primary alkylamine is reacted with acetic anhydride, to produce the compound of formula (I).Type: GrantFiled: August 31, 2004Date of Patent: September 1, 2009Assignee: WyethInventors: Christoph M. Dehnhardt, Sreenivasulu Megati, Ronald S. Michalak, Panolil Raveendranath, Jianxin Ren, Charles C. Wu, Yangzhong Wu
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Patent number: 7557237Abstract: A process for making a compound of formula I and intermediate compounds thereof, wherein R1 is CN, F or Cl; R2 is H or Br; and R3 and R4 are each independently H or F. The compounds of formula I are useful in the treatment of chronic inflammatory diseases, such as rheumatoid arthritis.Type: GrantFiled: September 1, 2004Date of Patent: July 7, 2009Assignee: WyethInventors: Yanzhong Wu, Jianxin Ren, Mousumi Ghosh, Mahmut Levent, Karen W. Sutherland, Panolil Raveendranath
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Publication number: 20090023903Abstract: A novel trifluoroacetylating agent, i.e., N-trifluoroacetylmorpholine, is described. This reagent is useful in the preparation of phenyl and heterocyclic sulfonamide compounds. Methods are therefore described for preparing sulfonamide compounds of the following structure, wherein R1 and R2 are defined herein, using N-trifluoroacetylmorpholine. The sulfonamide compounds that may be prepared as described herein include 5-chloro-thiophene-2-sulfonic acid [(1S,2R)-2-(3,5-difluoro-phenyl)-3,3,3-trifluoro-1-hydroxymethyl-propyl]-amide using N-trifluoroacetylmorpholine.Type: ApplicationFiled: July 14, 2008Publication date: January 22, 2009Applicant: WyethInventors: Terrence Joseph Connolly, Anita Wai-Yin Chan, Zhixian Ding, Mousumi Ghosh, Xinxu Shi, Jianxin Ren, Eric Hansen, Roger Farr, Michael MacEwan, Asaf Alimardanov, Antonia Nikitenko, John Potoski
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Publication number: 20080188545Abstract: Provided are methods for the preparation of certain substituted pyrrolidine compounds, forms of (2S,4R)-1-(2-aminoacetyl)-4-benzamidopyrrolidine-2-carboxylic acid hydrochloride, and methods for preparing and using these forms.Type: ApplicationFiled: December 20, 2007Publication date: August 7, 2008Inventors: Asaf R. Alimardanov, Lalitha Krishnan, Maotang Zhou, Ting-Zhong Wang, Jianxin Ren, John Leo Considine, Charles C. Wu, Jason Brazzillo, Panolil Raveendranath, Girija Raveendranath, Vijay Raveendranath, Sanjay Raveeendranath, Karen Sutherland, Mahmoud Mirmehrabi, Subodh S. Deshmukh
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Publication number: 20080146645Abstract: Processes are disclosed for preparing indolinone phenylaminopropanol derivatives, particularly chiral indolinone phenylaminopropanol derivatives of the general formula: The processes disclosed may be used to prepare, inter alia, 7-fluoro-1-[(1S, 2R)-1-(3-fluorophenyl)-2-hydroxy-3-(methylamino)propyl]-3,3-dimethyl-1,3-dihydro-2H-indol-2-one and 7-fluoro-1-[(1S, 2R)-1-(3,5-difluorophenyl)-2-hydroxy-3-(methylamino)propyl]-3,3-dimethyl-1,3-dihydro-2H-indol-2-one. Intermediates of the processes are also disclosed.Type: ApplicationFiled: August 22, 2007Publication date: June 19, 2008Applicant: WyethInventors: Anita Wai-Yin Chan, Zhixian Ding, Mousumi Ghosh, Mahmut Levent, Panolil Raveendranath, Jianxin Ren, Maotang Zhou, Asaf Alimardanov, Alexander V. Gontcharov, Antonia A. Nikitenko, John R. Potoski, Girija Raveendranath, Vijay Raveendranath, Sanjay Raveendranath
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Publication number: 20080081910Abstract: The present invention provides cycloalkylfused indole, benzothiophene, benzofuran, and indene derivatives, and methods for using them to, for example, treat, prevent and/or ameliorate central nervous system diseases by antagonizing 5-HT1A receptors and modulating serotonin levels.Type: ApplicationFiled: October 11, 2007Publication date: April 3, 2008Applicant: WyethInventors: Annmarie Sabb, Robert Vogel, Gary Stack, Deborah Evrard, Amedeo Failli, Lalitha Krishnan, Anita Chan, Jianxin Ren, Charles Guinosso, Reinhardt Baudy, Jean Sze, Yanfang Li, Charles Stanton, Antonia Nikitenko
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Patent number: 7297704Abstract: The present invention provides cycloalkylfused indole, benzothiophene, benzofuran, and indene derivatives, and methods for using them to, for example, treat, prevent and/or ameliorate central nervous system diseases by antagonizing 5-HT1A receptors and modulating serotonin levels.Type: GrantFiled: February 16, 2006Date of Patent: November 20, 2007Assignee: WyethInventors: Annmarie Louise Sabb, Robert Lewis Vogel, Gary Paul Stack, Deborah Ann Evrard, Amedeo Arturo Failli, Lalitha Krishnan, Anita Wai-Yin Chan, Jianxin Ren, Charles J. Guinosso, Reinhardt Bernhard Baudy, Jean Yi-ching Sze, Yanfang Li, Charles John Stanton, III, Antonia Nikitenko
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Patent number: D715093Type: GrantFiled: November 15, 2013Date of Patent: October 14, 2014Assignee: Haiyan Xinhua Electric Appliance Co., Ltd.Inventor: Jianxin Ren