Patents by Inventor Xiaolong Qiu
Xiaolong Qiu 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: 11949058Abstract: The present disclosure provides a battery piece feeding device and a soldering stringer, the battery piece feeding device is configured to lay battery pieces onto a soldering conveying device, the battery piece feeding device includes two picking mechanisms, both of the picking mechanisms are configured to alternately pick up the battery pieces from a battery piece picking position and lay the picked battery pieces onto the soldering conveying device. When one picking mechanism picks up the battery piece from the battery piece picking position, the other picking mechanism lays the picked battery piece onto the soldering conveying device. By arranging the two picking mechanisms and controlling the two picking mechanisms to alternately pick up the battery pieces from the battery piece picking position and lay the picked battery pieces onto the soldering conveying device, the battery piece feeding device greatly improves the battery piece feeding efficiency.Type: GrantFiled: May 26, 2023Date of Patent: April 2, 2024Assignee: WUXI AUTOWELL TECHNOLOGY CO., LTD.Inventors: Xiaolong Jiang, Kejian Qiu, Cong Ma, Chun Feng
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Publication number: 20230357132Abstract: The present disclosure relates to synthesis of an mRNA delivery agent, in particular to a reaction of a related amino compound with ethylene oxide in the presence of ytterbium triflate.Type: ApplicationFiled: November 19, 2021Publication date: November 9, 2023Applicant: WISDOM PHARMACEUTICAL CO., LTD.Inventors: Ping Zou, Zhiwei Zuo, Xiaolong Qiu, Tao Xu, Lin Hu, Lingling Chu, Wenbo Liu
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Patent number: 11697655Abstract: A preparation method of an intermediate compound of formula II ((1R,2S,3S,4S,5S,6R,11S,14S,17S,19R,21R,23S,25R,26R,27S,31R,34S)-25-[(2S)-2,3-dihydroxy]-2,5-dihydroxy-26-methoxy-19-methyl-13,20-dimethylene-24,35,36,37,38,39-hexaoxane[29.3.1.13,6.14,34.111,14.117,21.023,27]nonatriacontan-8,29-dione) for eribulin mesylate is provided, including subjecting a compound of formula I to a reaction with an additive in the presence of tetra-n-butylammonium fluoride (TBAF). The additive is piperidine hydrochloride or pyridine hydrochloride, and a reaction formula is as follows: The present invention aims to avoid the problem that a traditional synthetic route has a low yield.Type: GrantFiled: November 5, 2021Date of Patent: July 11, 2023Assignee: WISDOM PHARMACEUTICAL CO., LTDInventors: Xiaolong Qiu, Tao Xu, Zhiwei Zuo, Jie Ge, Xinwei Lu, Lingling Chu, Wenbo Liu, Biao Wang, Tingwei Gu, Weiwei Wang, Lin Hu, Ping Zou, Jun Chen, Lei Cao
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Patent number: 11565990Abstract: A more environmentally friendly synthesis method of 4-bromo-2-(4?-ethoxyphenyl)-1-chlorobenzene with simplified steps provides a more effective synthetic strategy for producing key intermediates of SGLT-2 inhibitors such as dapagliflozin, sotagliflozin, and ertugliflozin. In the presence of trifluoroacetic anhydride, 5-bromo-2-chlorobenzoic acid and phenetole are selected to complete a direct acylation reaction under the catalysis of boron trifluoride diethyl etherate, and triethylsilane is added thereinto without treatment for one-pot reaction to obtain a target compound 4-bromo-2-(4?-ethoxyphenyl)-1-chlorobenzene.Type: GrantFiled: June 9, 2021Date of Patent: January 31, 2023Assignee: WISDOM PHARMACEUTICAL CO., LTDInventors: Lin Hu, Tao Xu, Xiaolong Qiu, Xiaoyue Li, Zhiwei Zuo, Wenbo Liu, Lingling Chu, Ximeng Yuan, Ping Zou
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Publication number: 20230010367Abstract: A related substance of linagliptin intermediate 2-(chloromethyl)-4-methylquinazoline, 4,4?-(2-methylpropane-1,3-diyl)bis(2-(chloromethyl)quinazoline) and a method for synthesizing the related substance (impurity) by reacting 2-(chloromethyl)-4-methylquinazoline with acetaldehyde under an alkaline condition and a purification method are provided. The preparation method is simple and convenient to operate, short in reaction time, high in product purity, and high in yield. The synthesized related substance can be used for qualitative and quantitative analysis of the linagliptin intermediate 2-(chloromethyl)-4-methylquinazoline and API impurities of linagliptin, so that the medication safety of the linagliptin is improved.Type: ApplicationFiled: June 9, 2021Publication date: January 12, 2023Applicant: WISDOM PHARMACEUTICAL CO., LTDInventors: Xiaolong QIU, Hu WANG, Tao XU, Lin HU, Ping ZOU, Zhiwei ZUO, Wenbo LIU, Lingling CHU
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Publication number: 20220402933Abstract: A preparation method of an intermediate compound of formula II ((1R,2S,3S,4S,5S,6R,11S,14S,17S,19R,21R,23S,25R,26R,27S,31R,34S)-25-[(2S)-2,3-dihydroxy]-2,5-di hydroxy-26-methoxy-19-methyl-13,20-dimethylene-24,35,36,37,38,39-hexaoxane[29.3.1.13,6.14,34.111,14.117,21.023,27]nonatriacontan-8,29-dione) for eribulin mesylate is provided, including subjecting a compound of formula I to a reaction with an additive in the presence of tetra-n-butylammonium fluoride (TBAF). The additive is piperidine hydrochloride or pyridine hydrochloride, and a reaction formula is as follows: The present invention aims to avoid the problem that a traditional synthetic route has a low yield.Type: ApplicationFiled: November 5, 2021Publication date: December 22, 2022Applicant: WISDOM PHARMACEUTICAL CO., LTDInventors: Xiaolong QIU, Tao XU, Zhiwei ZUO, Jie GE, Xinwei LU, Lingling CHU, Wenbo LIU, Biao WANG, Tingwei GU, Weiwei WANG, Lin HU, Ping ZOU, Jun CHEN, Lei CAO
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Publication number: 20220267238Abstract: A more environmentally friendly synthesis method of 4-bromo-2-(4?-ethoxyphenyl)-1-chlorobenzene with simplified steps provides a more effective synthetic strategy for producing key intermediates of SGLT-2 inhibitors such as dapagliflozin, sotagliflozin, and ertugliflozin. In the presence of trifluoroacetic anhydride, 5-bromo-2-chlorobenzoic acid and phenetole are selected to complete a direct acylation reaction under the catalysis of boron trifluoride diethyl etherate, and triethylsilane is added thereinto without treatment for one-pot reaction to obtain a target compound 4-bromo-2-(4?-ethoxyphenyl)-1-chlorobenzene.Type: ApplicationFiled: June 9, 2021Publication date: August 25, 2022Applicant: WISDOM PHARMACEUTICAL CO., LTDInventors: Lin HU, Tao XU, Xiaolong QIU, Xiaoyue LI, Zhiwei ZUO, Wenbo LIU, Lingling CHU, Ximeng YUAN, Ping ZOU
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Publication number: 20210205810Abstract: A microfluidic tissue dissociation and filtration device simultaneously filters large tissue fragments and dissociates smaller aggregates into single cells, thereby improving single cell yield and purity. The device includes an inlet coupled to a first microfluidic channel at an upstream location and a first outlet at a downstream location. A first filter membrane is interposed between the first microfluidic channel and a second microfluidic channel, wherein the second microfluidic channel is in fluidic communication with the first microfluidic channel via the first filter membrane. The first filter membrane operates under a tangential flow format. A second outlet is coupled to a downstream location of the second microfluidic channel and includes a second filter membrane interposed between the second outlet and the second microfluidic channel. The dual membrane device increased single cell numbers by at least 3-fold for different tissue types.Type: ApplicationFiled: May 29, 2019Publication date: July 8, 2021Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jered Haun, Xiaolong Qiu, Marissa Noelani Pennell, Elliott E. Hui
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Publication number: 20210197191Abstract: A microfluidic device uses hydrodynamic shear forces on a sample to improve the speed and efficiency of tissue digestion is disclosed. The microfluidic channels are designed to apply hydrodynamic shear forces at discrete locations on tissue specimens up to 1 cm in length and 1 mm in diameter, thereby accelerating digestion through hydrodynamic shear forces and improved enzyme-tissue contact. The microfluidic digestion device can eliminate or reduce the need to mince tissue samples with a scalpel, while reducing sample processing time and preserving cell viability. Another advantage is that downstream microfluidic operations could be integrated to enable advanced cell processing and analysis capabilities. The device may be used in research and clinical settings to promote single cell-based analysis technologies, as well as to isolate primary, progenitor, and stem cells for use in the fields of tissue engineering and regenerative medicine.Type: ApplicationFiled: February 19, 2021Publication date: July 1, 2021Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jered Haun, Xiaolong Qiu, Elliot Hui, Amrith Karunaratne, Erik Werner
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Patent number: 11001604Abstract: A method for preparing tulathromycin, and two intermediate compounds shown in formula V and formula VI are provided.Type: GrantFiled: February 5, 2018Date of Patent: May 11, 2021Assignee: WISDOM PHARMACEUTICAL CO., LTD.Inventors: Ping Zou, LingLing Chu, Xiaolong Qiu, Lin Hu, ChengLiang Zhang, XiangJun Zeng, ShaoHua Gou, ZhongPing Wu, Wei Shen, Jian Fu, Ming Xu, Ping Wang, XinGang Zhang, GuangHao Shi, JunQiang Wang, Jun Chen, Lei Cao
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Patent number: 10926257Abstract: A microfluidic device uses hydrodynamic shear forces on a sample to improve the speed and efficiency of tissue digestion is disclosed. The microfluidic channels are designed to apply hydrodynamic shear forces at discrete locations on tissue specimens up to 1 cm in length and 1 mm in diameter, thereby accelerating digestion through hydrodynamic shear forces and improved enzyme-tissue contact. Experiments using animal organs show that the digestion device with hydro-mincing capabilities is superior to conventional scalpel mincing and digestion based on recovery of DNA and viable single cells. The microfluidic digestion device can eliminate or reduce the need to mince tissue samples with a scalpel, while reducing sample processing time and preserving cell viability. Another advantage is that downstream microfluidic operations could be integrated to enable advanced cell processing and analysis capabilities.Type: GrantFiled: August 28, 2018Date of Patent: February 23, 2021Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jered Haun, Xiaolong Qiu, Elliot Hui, Amrith Karunaratne, Erik Werner
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Publication number: 20200354396Abstract: A method for preparing tulathromycin, and two intermediate compounds shown in formula V and formula VI are provided.Type: ApplicationFiled: February 5, 2018Publication date: November 12, 2020Applicant: WISDOM PHARMACEUTICAL CO., LTDInventors: Ping ZOU, LingLing CHU, XiaoLong QIU, Lin HU, ChengLiang ZHANG, XiangJun ZENG, ShaoHua GOU, ZhongPing WU, Wei SHEN, Jian FU, Ming XU, Ping WANG, XinGang ZHANG, GuangHao SHI, JunQiang WANG, Jun CHEN, Lei CAO
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Patent number: 10722540Abstract: A method of processing a lipoaspirate sample includes mechanically processing the lipoaspirate sample to generate nanofat. The nanofat is then input into a microfluidic device comprising a plurality of serially arranged stages comprising one or more microfluidic channels having a plurality of expansion and constriction regions extending along the length of the one or more microfluidic channels, wherein each subsequent stage of the plurality has an increasing number of microfluidic channels of decreasing dimensions. The nanofat is flowed through the plurality of serially arranged stages in a plurality of cycles to generate sheared nanofat. The sheared nanofat is then collected after flowing through the plurality of serially arranged stages. The sheared nanofat may then be injected and/or applied to the subject. In an alternative embodiment, filtered or mechanically processed lipoaspirate may be run through the microfluidic device.Type: GrantFiled: January 31, 2017Date of Patent: July 28, 2020Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jered Haun, Alan Widgerow, Derek Banyard, Xiaolong Qiu
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Publication number: 20190070605Abstract: A microfluidic device uses hydrodynamic shear forces on a sample to improve the speed and efficiency of tissue digestion is disclosed. The microfluidic channels are designed to apply hydrodynamic shear forces at discrete locations on tissue specimens up to 1 cm in length and 1 mm in diameter, thereby accelerating digestion through hydrodynamic shear forces and improved enzyme-tissue contact. Experiments using animal organs show that the digestion device with hydro-mincing capabilities is superior to conventional scalpel mincing and digestion based on recovery of DNA and viable single cells. The microfluidic digestion device can eliminate or reduce the need to mince tissue samples with a scalpel, while reducing sample processing time and preserving cell viability. Another advantage is that downstream microfluidic operations could be integrated to enable advanced cell processing and analysis capabilities.Type: ApplicationFiled: August 28, 2018Publication date: March 7, 2019Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jered Haun, Xiaolong Qiu, Elliot Hui, Amrith Karunaratne, Erik Werner