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).

  • Patent number: 12146490
    Abstract: 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: Grant
    Filed: September 27, 2020
    Date of Patent: November 19, 2024
    Assignee: Copeland Climate Technologies (Suzhou) Co. Ltd.
    Inventors: Ji Liang, Ping Zhao, Meiling Xu, Yuan Qian
  • Patent number: 11835046
    Abstract: 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: Grant
    Filed: August 13, 2020
    Date of Patent: December 5, 2023
    Assignee: Copeland Climate Technologies (Suzhou) Co., Ltd.
    Inventors: Yue Zhang, Yuan Qian
  • Patent number: 11820762
    Abstract: 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: Grant
    Filed: September 15, 2021
    Date of Patent: November 21, 2023
    Assignees: 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
  • Publication number: 20230160386
    Abstract: 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: Application
    Filed: September 27, 2020
    Publication date: May 25, 2023
    Applicant: Emerson Climate Technologies (Suzhou) Co., Ltd.
    Inventors: Ji LIANG, Ping ZHAO, Meiling XU, Yuan QIAN
  • Patent number: 11639515
    Abstract: 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: Grant
    Filed: May 13, 2022
    Date of Patent: May 2, 2023
    Assignees: TAIXING DONGSHENG BIO-TECH CO., LTD, JIANGNAN UNIVERSITY
    Inventors: Xinrui Zhao, Bohan Zhang, Jingwen Zhou, Guocheng Du, Jianghua Li, Jian Chen, Fei Yu, Wei Lu, Yuan Qian
  • Publication number: 20220364562
    Abstract: 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: Application
    Filed: August 13, 2020
    Publication date: November 17, 2022
    Applicant: Emerson Climate Technologies (Suzhou) Co., Ltd.
    Inventors: Yue ZHANG, Yuan QIAN
  • Publication number: 20220267823
    Abstract: 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: Application
    Filed: May 13, 2022
    Publication date: August 25, 2022
    Inventors: Xinrui Zhao, Bohan Zhang, Jingwen Zhou, Guocheng Du, Jianghua Li, Jian Chen, Fei Yu, Wei Lu, Yuan Qian
  • Publication number: 20220112180
    Abstract: 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: Application
    Filed: September 15, 2021
    Publication date: April 14, 2022
    Inventors: Pei-Yuan QIAN, Aifang CHENG, Changdong LIU, Wenkang YE, Guang ZHU
  • Publication number: 20210051956
    Abstract: 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: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Inventors: Pei-Yuan QIAN, Lexin LONG, Yongxin LI, Ruojun WANG, Ho Yin CHIANG
  • Patent number: 10738093
    Abstract: 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: Grant
    Filed: January 23, 2019
    Date of Patent: August 11, 2020
    Assignees: 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
  • Publication number: 20190225663
    Abstract: 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: Application
    Filed: January 23, 2019
    Publication date: July 25, 2019
    Inventors: PEI-YUAN QIAN, YONGXIN LI, ZHENG ZHONG, WEIPENG ZHANG
  • Patent number: 9644005
    Abstract: 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: Grant
    Filed: September 21, 2012
    Date of Patent: May 9, 2017
    Assignee: King Abdullah University of Science and Technology
    Inventors: Pei-Yuan Qian, Ying Sharon Xu, Pok-Yui Lai
  • Publication number: 20140296161
    Abstract: 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: Application
    Filed: September 21, 2012
    Publication date: October 2, 2014
    Applicant: King Abdullah University of Science and Technology
    Inventors: Pei-Yuan Qian, Ying Sharon Xu, Pok-Yui Lai
  • Patent number: 8257478
    Abstract: 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: Grant
    Filed: December 16, 2005
    Date of Patent: September 4, 2012
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Pei-Yuan Qian, Xiancui Li, Fuk Ning Kwong, Lai Hung Yang, Sergey Vladimirovich Dobretsov
  • Patent number: 7090856
    Abstract: 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: Grant
    Filed: June 19, 2003
    Date of Patent: August 15, 2006
    Assignee: Hong Kong University of Science and Technology
    Inventors: Pei-Yuan Qian, Serguei Dobretsov, Tilmann Harder, Chun Kwan Stanley Lau
  • Publication number: 20060147410
    Abstract: 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: Application
    Filed: December 16, 2005
    Publication date: July 6, 2006
    Inventors: Pei-Yuan Qian, Xiancui Li, Fuk Kwong, Lai Yang, Sergey Dobretsov
  • Publication number: 20040258655
    Abstract: 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: Application
    Filed: June 19, 2003
    Publication date: December 23, 2004
    Applicant: Hong Kong University of Science and Technology
    Inventors: Pei-Yuan Qian, Serguei Dobretsov, Tilmann Harder, Chun Kwan Stanley Lau