Patents by Inventor Yuan Qian
Yuan Qian 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: 12146490Abstract: Disclosed are a compression mechanism and a scroll compressor. The compression mechanism comprises an orbiting scroll and a non-orbiting scroll comprising a non-orbiting scroll end plate and forms a series of fluid chambers comprising an intermediate compression chamber. An exhaust communication space is provided on the second side of the non-orbiting scroll end plate, and the non-orbiting scroll end plate is provided with a pressure relief port which makes at least one intermediate compression chamber be in selective fluid communication with the exhaust communication space. An end plate surface on the first side of the non-orbiting scroll end plate is provided with an exhaust groove which is in communication with the pressure relief port, the pressure relief port can be in fluid communication with the at least one intermediate compression chamber through the exhaust groove.Type: GrantFiled: September 27, 2020Date of Patent: November 19, 2024Assignee: Copeland Climate Technologies (Suzhou) Co. Ltd.Inventors: Ji Liang, Ping Zhao, Meiling Xu, Yuan Qian
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Patent number: 11835046Abstract: A main bearing housing assembly for a scroll compressor and a scroll compressor having the main bearing housing assembly. The main bearing housing assembly comprises: a main bearing housing; and a thrust plates, the thrust plate being provided at the top of the main bearing housing, and comprising a thrust surface located at the top and in surface contact with the bottom end surface of a scroll assembly of the scroll compressor; the thrust plate comprises: at least one oil inlet hole; a closed oil chamber, the closed oil chamber being formed in the thrust plate; and at least one oil outlet hole, the opening of the at least one oil outlet hole being exposed to the thrust surface; and the at least one oil inlet hole is in communication with the at least one oil outlet hole by means of the closed oil chamber.Type: GrantFiled: August 13, 2020Date of Patent: December 5, 2023Assignee: Copeland Climate Technologies (Suzhou) Co., Ltd.Inventors: Yue Zhang, Yuan Qian
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Patent number: 11820762Abstract: The subject invention pertains to compositions and methods for treating neurodegenerative diseases, including Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), Huntington's disease (HD), multiple sclerosis, epilepsy, stroke, alcohol withdrawal, progressive supranuclear palsy (PSP), Pick's disease (PiD), corticobasal degeneration (CBD), frontotemporal dementia or parkinsonism linked to chromosome 17 (FTDP-17). The methods of the subject invention further relate to methods of fermentation of bacterial cells and methods of tautomerization of the subject compounds.Type: GrantFiled: September 15, 2021Date of Patent: November 21, 2023Assignees: The Hong Kong University of Science and Technology, Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)Inventors: Pei-Yuan Qian, Aifang Cheng, Changdong Liu, Wenkang Ye, Guang Zhu
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Publication number: 20230160386Abstract: Disclosed are a compression mechanism and a scroll compressor. The compression mechanism comprises an orbiting scroll and a non-orbiting scroll comprising a non-orbiting scroll end plate and forms a series of fluid chambers comprising an intermediate compression chamber. An exhaust communication space is provided on the second side of the non-orbiting scroll end plate, and the non-orbiting scroll end plate is provided with a pressure relief port which makes at least one intermediate compression chamber be in selective fluid communication with the exhaust communication space. An end plate surface on the first side of the non-orbiting scroll end plate is provided with an exhaust groove which is in communication with the pressure relief port, the pressure relief port can be in fluid communication with the at least one intermediate compression chamber through the exhaust groove.Type: ApplicationFiled: September 27, 2020Publication date: May 25, 2023Applicant: Emerson Climate Technologies (Suzhou) Co., Ltd.Inventors: Ji LIANG, Ping ZHAO, Meiling XU, Yuan QIAN
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Patent number: 11639515Abstract: The disclosure discloses a genetically engineered strain for producing porcine myoglobin and fermentation and purification thereof, and belongs to the technical field of genetic engineering. The disclosure realizes efficient secretion and expression of porcine myoglobin by integrating the gene of porcine myoglobin in P. pastoris. On this basis, optimization of the medium and culture conditions of recombinant P. pastoris can significantly increase the titer of porcine myoglobin, so that the titer can reach 285.42 mg/L under fermenter conditions. In addition, by creatively adding different concentrations of ammonium sulfate to fermentation broth step by step, the purity of myoglobin obtained by final concentration is up to 88.0%, and the purification rate is up to 66.1%.Type: GrantFiled: May 13, 2022Date of Patent: May 2, 2023Assignees: TAIXING DONGSHENG BIO-TECH CO., LTD, JIANGNAN UNIVERSITYInventors: Xinrui Zhao, Bohan Zhang, Jingwen Zhou, Guocheng Du, Jianghua Li, Jian Chen, Fei Yu, Wei Lu, Yuan Qian
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Publication number: 20220364562Abstract: A main bearing housing assembly for a scroll compressor and a scroll compressor having the main bearing housing assembly. The main bearing housing assembly comprises: a main bearing housing; and a thrust plates, the thrust plate being provided at the top of the main bearing housing, and comprising a thrust surface located at the top and in surface contact with the bottom end surface of a scroll assembly of the scroll compressor; the thrust plate comprises: at least one oil inlet hole; a closed oil chamber, the closed oil chamber being formed in the thrust plate; and at least one oil outlet hole, the opening of the at least one oil outlet hole being exposed to the thrust surface; and the at least one oil inlet hole is in communication with the at least one oil outlet hole by means of the closed oil chamber.Type: ApplicationFiled: August 13, 2020Publication date: November 17, 2022Applicant: Emerson Climate Technologies (Suzhou) Co., Ltd.Inventors: Yue ZHANG, Yuan QIAN
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Publication number: 20220267823Abstract: The disclosure discloses a genetically engineered strain for producing porcine myoglobin and fermentation and purification thereof, and belongs to the technical field of genetic engineering. The disclosure realizes efficient secretion and expression of porcine myoglobin by integrating the gene of porcine myoglobin in P. pastoris. On this basis, optimization of the medium and culture conditions of recombinant P. pastoris can significantly increase the titer of porcine myoglobin, so that the titer can reach 285.42 mg/L under fermenter conditions. In addition, by creatively adding different concentrations of ammonium sulfate to fermentation broth step by step, the purity of myoglobin obtained by final concentration is up to 88.0%, and the purification rate is up to 66.1%.Type: ApplicationFiled: May 13, 2022Publication date: August 25, 2022Inventors: Xinrui Zhao, Bohan Zhang, Jingwen Zhou, Guocheng Du, Jianghua Li, Jian Chen, Fei Yu, Wei Lu, Yuan Qian
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Publication number: 20220112180Abstract: The subject invention pertains to compositions and methods for treating neurodegenerative diseases, including Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), Huntington's disease (HD), multiple sclerosis, epilepsy, stroke, alcohol withdrawal, progressive supranuclear palsy (PSP), Pick's disease (PiD), corticobasal degeneration (CBD), frontotemporal dementia or parkinsonism linked to chromosome 17 (FTDP-17). The methods of the subject invention further relate to methods of fermentation of bacterial cells and methods of tautomerization of the subject compounds.Type: ApplicationFiled: September 15, 2021Publication date: April 14, 2022Inventors: Pei-Yuan QIAN, Aifang CHENG, Changdong LIU, Wenkang YE, Guang ZHU
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Publication number: 20210051956Abstract: The subject invention pertains to compositions and methods of eradicating biofilms and/or inhibiting the formation of a biofilms or fouling by non-biofilm forming organisms using elasnin-based compositions. In certain embodiments, the elasnin can be combined with antimicrobial compounds and/or traditional coating ingredients.Type: ApplicationFiled: August 21, 2020Publication date: February 25, 2021Inventors: Pei-Yuan QIAN, Lexin LONG, Yongxin LI, Ruojun WANG, Ho Yin CHIANG
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Patent number: 10738093Abstract: Pharmacological compositions comprising a cationic nonribosomal peptide (CNRP) or a salt thereof are described. Further, methods of treating a bacterial infection in a subject by administering to the subject a CNRP or a salt thereof are provided.Type: GrantFiled: January 23, 2019Date of Patent: August 11, 2020Assignees: The Hong Kong University of Science and Technology, China Ocean Mineral Resources R&D Assocation (COMRA)Inventors: Pei-Yuan Qian, Yongxin Li, Zheng Zhong, Weipeng Zhang
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Publication number: 20190225663Abstract: Certain embodiments of the invention pertain to pharmaceutical compositions comprising a cationic nonribosomal peptide (CNRP) or a salt thereof. Certain other embodiments of the invention pertain to methods of treating a bacterial infection in a subject by administering to the subject a CNRP or a salt thereof.Type: ApplicationFiled: January 23, 2019Publication date: July 25, 2019Inventors: PEI-YUAN QIAN, YONGXIN LI, ZHENG ZHONG, WEIPENG ZHANG
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Patent number: 9644005Abstract: A novel Tistrella mobilis strain having Accession Deposit Number NRRL B-50531 is provided. A method of producing a didemnin precursor, didemnin or didemnin derivative by using the Tistrella mobilis strain, and the therapeutic composition comprising at least one didemnin or didemnin derivative produced from the strain or modified strain thereof are also provided.Type: GrantFiled: September 21, 2012Date of Patent: May 9, 2017Assignee: King Abdullah University of Science and TechnologyInventors: Pei-Yuan Qian, Ying Sharon Xu, Pok-Yui Lai
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Publication number: 20140296161Abstract: A novel Tistrella mobilis strain having Accession Deposit Number NRRL B-50531 is provided. A method of producing a didemnin precursor, didemnin or didemnin derivative by using the Tistrella mobilis strain, and the therapeutic composition comprising at least one didemnin or didemnin derivative produced from the strain or modified strain thereof are also provided.Type: ApplicationFiled: September 21, 2012Publication date: October 2, 2014Applicant: King Abdullah University of Science and TechnologyInventors: Pei-Yuan Qian, Ying Sharon Xu, Pok-Yui Lai
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Patent number: 8257478Abstract: Compounds originally isolated from marine fungi are useful as antifouling (antibacterial and/or anti-larval settlement) agents. The compounds are 3-chloro-2,5-dihydroxy benzyl alcohol, cyclo-(Pro-Phe),3-methyl-N-(2-phenylethyl) butanamide, and succinic acid. The compounds are non-toxic or low-toxic. They can be used alone or in combination, as active ingredients for making environment-friendly antifouling formulations/coatings.Type: GrantFiled: December 16, 2005Date of Patent: September 4, 2012Assignee: The Hong Kong University of Science and TechnologyInventors: Pei-Yuan Qian, Xiancui Li, Fuk Ning Kwong, Lai Hung Yang, Sergey Vladimirovich Dobretsov
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Patent number: 7090856Abstract: An anti-fouling agent derived by culturing Vibrio alginolyticus in a suitable aqueous solution as well as a newly isolated strain of V. alginolyticus (DSM 15590) for producing the anti-fouting agent. The anti-fouling agent can be used as a component to produce other anti-fouling compositions, Depending on the use, the anti-fouling agent derived from V. alginolyricus may be use directly, or subject to further purification.Type: GrantFiled: June 19, 2003Date of Patent: August 15, 2006Assignee: Hong Kong University of Science and TechnologyInventors: Pei-Yuan Qian, Serguei Dobretsov, Tilmann Harder, Chun Kwan Stanley Lau
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Publication number: 20060147410Abstract: Compounds originally isolated from marine fungi are useful as antifouling (antibacterial and/or anti-larval settlement) agents. The compounds are 3-chloro-2, 5-dihydroxy benzyl alcohol, cyclo-(Pro-Phe),3-methyl-N-(2-phenylethyl) butanamide, and succinic acid. The compounds are non-toxic or low-toxic. They can be used alone or in combination, as active ingredients for making environment-friendly antifouling formulations/coatings.Type: ApplicationFiled: December 16, 2005Publication date: July 6, 2006Inventors: Pei-Yuan Qian, Xiancui Li, Fuk Kwong, Lai Yang, Sergey Dobretsov
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Publication number: 20040258655Abstract: An anti-fouling agent derived by culturing Vibrio alginolyticus in an aqueous solution suitable for growth thereof is described. The anti-fouling agent is produced and secreted by Vibrio alginolyticus, which can then be used as a component to produce other anti-fouling compositions. Depending on the use, the anti-fouling agent derived from V. alginolyticus may be used directly, or subject to further purification. A newly isolated strain of V. alginolyticus (DSM 15590) is also disclosed.Type: ApplicationFiled: June 19, 2003Publication date: December 23, 2004Applicant: Hong Kong University of Science and TechnologyInventors: Pei-Yuan Qian, Serguei Dobretsov, Tilmann Harder, Chun Kwan Stanley Lau