Patents by Inventor Yanmei Li
Yanmei Li 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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Publication number: 20170314485Abstract: The engine shut-off valve system includes a housing, a gate member, a rotating lever, a locking piston assembly, and a closing piston assembly. The system is installed in fluid connection with a flow line so that air flow passes through a passageway in the housing with the gate member in the locked configuration. The air flow through the passageway stops with the gate member in the closed configuration. The gate member has an asymmetry so that the forces of the spring of the closing piston assembly and the spring of the locking piston assembly are cooperative to actuate between the closed configuration and the locked configuration, while wearing on the gate member differently so as to extend the working life of the valve system. The closing piston assembly and the locking piston assembly are separately accessible for maintenance.Type: ApplicationFiled: July 20, 2017Publication date: November 2, 2017Inventors: Ming Fei CHEN, Yanmei LI
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Publication number: 20170277277Abstract: An input-based information display method and an input system are provided to solve the issue of a relatively low efficiency caused by separate input of words and expressions in an input method. The method includes: using context information to perform recognition processing on a received input string, and recognizing a current semantic keyword; determining display information that matches the semantic keyword, and displaying the display information in a form of a pop-up bubble, where the display information includes but is not limited to expression images; and performing display processing on the display information according to an user instruction, where the display processing includes but is not limited to performing an enter-on-screen operation of the expression images.Type: ApplicationFiled: August 14, 2015Publication date: September 28, 2017Applicant: Beijing Sogou Technology Development Co., Ltd.Inventors: Yanmei LI, Ping LI
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Patent number: 9631464Abstract: An artificial lift system for use with a subterranean well can include a cylinder having a piston reciprocably disposed therein, the piston having opposing sides, each of the opposing sides being selectively communicable with a hydraulic pressure source and a hydraulic reservoir, and the piston having another side in communication with a gas pressure source, and the gas pressure source including a gas compressor connected between gas containers. A method of controlling an artificial lift system can include connecting a cylinder to a hydraulic pressure source and to a gas pressure source, operating a gas compressor of the gas pressure source, thereby increasing gas pressure applied to the cylinder from the gas pressure source, and displacing a piston, thereby operating a downhole pump.Type: GrantFiled: July 8, 2014Date of Patent: April 25, 2017Assignee: Halliburton Energy Services, Inc.Inventors: Tao Tao, Mathew J. McEachern, Huajun Chen, Yanmei Li
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Patent number: 9631463Abstract: An artificial lift system for use with a subterranean well can include a cylinder having a piston reciprocably disposed therein, the piston having opposing sides, one side being selectively communicable with at least one accumulator, and the other side having two areas, each of the areas being selectively communicable with a hydraulic pressure source and a hydraulic reservoir, and a gas pressure source connected to the accumulator, the gas pressure source including a gas compressor connected between at least one gas container and the accumulator. A method of controlling an artificial lift system can include connecting a cylinder to a hydraulic pressure source and to at least one accumulator, the accumulator being connected to a gas pressure source, and operating a gas compressor of the gas pressure source, thereby increasing hydraulic pressure applied to the cylinder from the accumulator.Type: GrantFiled: July 8, 2014Date of Patent: April 25, 2017Assignee: Halliburton Energy Services, Inc.Inventors: Tao Tao, Mathew J. McEachern, Huajun Chen, Yanmei Li
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Publication number: 20170045002Abstract: An engine air shut-off valve consists of a housing, a gate pivotal about an axis that can open or close an air passage which extends through the housing, a locking piston attached to the housing that keeps the gate in open position and a closing piston assembly installed inside the housing that keeps the gate in close position when the air passage needs to be closed. Valve mounting flanges are attached to the housing through lock pins.Type: ApplicationFiled: May 22, 2014Publication date: February 16, 2017Inventors: Ming Fei Chen, Yanmei Li
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Publication number: 20160258426Abstract: An artificial lift system for use with a subterranean well can include a cylinder having a piston reciprocably disposed therein, the piston having opposing sides, one side being selectively communicable with a hydraulic pressure source and a hydraulic reservoir, and the other side being selectively communicable with the hydraulic pressure source and at least one accumulator, and the accumulator being selectively communicable with an input side of a pump of the hydraulic pressure source. A method of controlling an artificial lift system can include connecting a cylinder to a hydraulic pressure source including a hydraulic pump, the pump being connected between the cylinder and at least one accumulator, the accumulator being connected to a gas pressure source, and operating a gas compressor of the gas pressure source, thereby increasing hydraulic pressure applied to the pump from the accumulator.Type: ApplicationFiled: July 8, 2014Publication date: September 8, 2016Inventors: Tao TAO, Mathew J. MCEACHERN, Huajun CHEN, Yanmei LI
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Publication number: 20160010437Abstract: An artificial lift system for use with a subterranean well can include a cylinder having a piston reciprocably disposed therein, the piston having opposing sides, one side being selectively communicable with at least one accumulator, and the other side having two areas, each of the areas being selectively communicable with a hydraulic pressure source and a hydraulic reservoir, and a gas pressure source connected to the accumulator, the gas pressure source including a gas compressor connected between at least one gas container and the accumulator. A method of controlling an artificial lift system can include connecting a cylinder to a hydraulic pressure source and to at least one accumulator, the accumulator being connected to a gas pressure source, and operating a gas compressor of the gas pressure source, thereby increasing hydraulic pressure applied to the cylinder from the accumulator.Type: ApplicationFiled: July 8, 2014Publication date: January 14, 2016Inventors: Tao TAO, Mathew J. MCEACHERN, Huajun CHEN, Yanmei LI
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Publication number: 20160010438Abstract: An artificial lift system for use with a subterranean well can include a cylinder having a piston reciprocably disposed therein, the piston having opposing sides, each of the opposing sides being selectively communicable with a hydraulic pressure source and a hydraulic reservoir, and the piston having another side in communication with a gas pressure source, and the gas pressure source including a gas compressor connected between gas containers. A method of controlling an artificial lift system can include connecting a cylinder to a hydraulic pressure source and to a gas pressure source, operating a gas compressor of the gas pressure source, thereby increasing gas pressure applied to the cylinder from the gas pressure source, and displacing a piston, thereby operating a downhole pump.Type: ApplicationFiled: July 8, 2014Publication date: January 14, 2016Inventors: Tao TAO, Mathew J. MCEACHERN, Huajun CHEN, Yanmei LI
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Patent number: 9226911Abstract: A method of reducing a weight of a subject includes administering to the subject in need thereof a composition comprised of fucoxanthin extract and at least one selected from the group consisting of tocotrienol, fucoidan and a combination thereof, wherein the subject is a mammal.Type: GrantFiled: March 18, 2013Date of Patent: January 5, 2016Assignee: BEIJING GINGKO GROUP BIOLOGICAL TECHNOLOGY CO., LTD.Inventors: Yanmei Li, Qinghua Liu
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Patent number: 9180078Abstract: The invention relates to a cosmetic composition containing lingonberry extract and its use on skin cosmetology thereof. The present invention has provided a lingonberry extract wherein containing polyphenols components including anthocyanidin, procyanidin, resveratrol, catechin and so on. The present invention also relates to the application of lingonberry extract on skin cosmetology, including without limitation whitening, diminishing visible pigmentation, anti-wrinkle, moisturizing, smoothing and improving skin sensitivity. The invention also has revealed drugs, cosmetic compositions and food prepared by using lingonberry extract. Comparing with the prior art cosmetic compositions, the said lingonberry extract of the present invention has higher effects and safe.Type: GrantFiled: July 3, 2013Date of Patent: November 10, 2015Assignee: BEIJING GINGKO GROUP BIOLOGICAL TECHNOLOGY CO.Inventors: Chunhua Li, Yanmei Li
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Patent number: 8871217Abstract: The present invention provides a method for producing fucoxanthin extract, said method comprising: performing absorption of the fucoxanthin extract by using absorbent and then performing elution to remove heavy metals and arsenic salt contained in the fucoxanthin extract, wherein the absorbent is selected from a group having macroporous resin, polyamide, activated carbon, alumina and a combination thereof. The method for producing fucoxanthin extract according to the present invention, the content of heave metal in the fucoxanthin extract can be reduced, while the content of fucoxanthin in the fucoxanthin extract can increase. In addition, the present invention also provides a fucoxanthin extract obtained by the above method, as well as fucoxanthin products containing the fucoxanthin extract.Type: GrantFiled: November 16, 2009Date of Patent: October 28, 2014Assignee: Beijing Gingko Group Biological Technology Co., Ltd.Inventors: Yanmei Li, Liang Li
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Patent number: 8596345Abstract: A sealing element for a rotating control device is disclosed, wherein the sealing element has an inner surface which forms a drillstring bore extending axially through the sealing element, an attachment end having a receiving cavity extending into the attachment end substantially parallel with the drillstring bore, a nose end opposite from the attachment end, wherein the nose end has an inner diameter smaller than the inner diameter of the attachment end, a throat region between the attachment end and the nose end, at least one soft elastomer region comprising a soft elastomer material having a hardness of 70 duro or less, and at least one stiff elastomer region comprising a stiff elastomer material having a hardness greater than 70 duro.Type: GrantFiled: March 24, 2011Date of Patent: December 3, 2013Assignee: Smith International, Inc.Inventors: Yanmei Li, Alan W. Lockstedt, Sudarsanam Chellappa
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Publication number: 20130296418Abstract: The invention relates to a cosmetic composition containing lingonberry extract and its use on skin cosmetology thereof. The present invention has provided a lingonberry extract wherein containing polyphenols components including anthocyanidin, procyanidin, resveratrol, catechin and so on. The present invention also relates to the application of lingonberry extract on skin cosmetology, including without limitation whitening, diminishing visible pigmentation, anti-wrinkle, moisturizing, smoothing and improving skin sensitivity. The invention also has revealed drugs, cosmetic compositions and food prepared by using lingonberry extract. Comparing with the prior art cosmetic compositions, the said lingonberry extract of the present invention has higher effects and safe.Type: ApplicationFiled: July 3, 2013Publication date: November 7, 2013Applicant: Beijing Gingko Group Biological Technology Co., Ltd.Inventors: Chunhua Li, Yanmei Li
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Patent number: 8501246Abstract: The invention relates to a cosmetic composition containing lingonberry extract and its use on skin cosmetology thereof. The present invention has provided a lingonberry extract wherein containing polyphenols components including anthocyanidin, procyanidin, resveratrol, catechin and so on. The present invention also relates to the application of lingonberry extract on skin cosmetology, including without limitation whitening, diminishing visible pigmentation, anti-wrinkle, moisturizing, smoothing and improving skin sensitivity. The invention also has revealed drugs, cosmetic composition and food prepared by using lingonberry extract. Comparing with the prior art cosmetic compositions, the said lingonberry extract of the present invention has higher effects and safe.Type: GrantFiled: April 10, 2008Date of Patent: August 6, 2013Assignee: Beijing Gingko Group Biological Technology, Co., Ltd.Inventors: Chunhua Li, Yanmei Li
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Publication number: 20130189382Abstract: Use of fucoxanthin in the preparation of a product having neuroprotective effect associated with neurodegenerative disorder and improving memory is disclosed in the disclosure. A product having neuroprotective effect associated with neurodegenerative disorder is also disclosed in the disclosure. Fucoxanthin can inhibit oxidative stress of cells and has the effect of preventing or treating Alzheimer's disease and improving memory.Type: ApplicationFiled: September 30, 2010Publication date: July 25, 2013Applicant: Beijing Gingko Group Biological Technology Co., Ltd.Inventors: Yanmei Li, Liang Li
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Patent number: 8454970Abstract: A composition comprises extract of fucoxanthin, wherein said composition further comprises tocotrienols and/or fucoidan. Said composition can be used to treat obesity. Said composition shows outstanding effect of weight loss. There is outstanding synergy effect among those constituents of the composition.Type: GrantFiled: January 19, 2009Date of Patent: June 4, 2013Assignee: Beijing Gingko Group Biological Technology Co., Ltd.Inventors: Yanmei Li, Qinghua Liu
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Publication number: 20130030046Abstract: The application relates to a use of black soybean hull extracts in the manufacture of foods, health care products and medicaments. The black soybean hull extracts can be added to foods or drinks, and also can be made into all kinds of oral health care products and oral medicaments used by conventional methods of preparing traditional Chinese medicine preparations. The products can significantly improve symptoms of osteoarthritis, and also can stabilize or even reverse the degradation of cartilage of osteoarthritis.Type: ApplicationFiled: November 11, 2010Publication date: January 31, 2013Applicant: BEIJING GINGKO GROUP BIOLOGICAL TECHNOLOGY CO., LTD.Inventors: Chunhua Li, Yanmei Li, Qinghua Liu
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Patent number: 8257756Abstract: Methods for preparing black soybean hull extracts and uses thereof. The methods can comprise: (1) extracting crushed black soybean hull with aqueous solution containing enzyme and filtering the extracted liquid; (2) ultrafiltration of the extract liquid with an ultrafiltration membrane; (3) absorbing the ultrafiltration liquid with an absorption resin or an ion exchange resin, and elution with ethanol to obtain purified extract liquid; (4) concentrating the purified extract liquid under vacuum; (5) spray drying the concentrated liquid. The extract can contain: 10-45% of cyanidin, 10-25% of catechin, and 40-80% of OPC, and with a total polyphenol content as high as 70-100%. The extract can be used for preparing drugs or food containing antioxidants, or used for improving metabolic syndrome or eyesight.Type: GrantFiled: July 30, 2007Date of Patent: September 4, 2012Assignee: Beijing Gingko-Group Biological Technology Co., Ltd.Inventors: Yanmei Li, Fengying Zhou, Xiarui Dou
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Publication number: 20120220580Abstract: Compounds having the structure of general formula I or pharmaceutically acceptable salts thereof which are derivatives of fucoxanthin and fucoxanthol are disclosed. A preparation method of the compound and its use in weight reducing are also disclosed.Type: ApplicationFiled: April 19, 2012Publication date: August 30, 2012Applicant: BEIJING GINGKO GROUP BIOLOGICAL TECHNOLOGY CO., LTD.Inventors: YANMEI LI, QINGHUA LIU
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Patent number: 8206764Abstract: Methods for preparing black soybean hull extracts and uses thereof. The methods can comprise: (1) extracting crushed black soybean hull with aqueous solution containing enzyme and filtering the extracted liquid; (2) ultrafiltration of the extract liquid with an ultrafiltration membrane; (3) absorbing the ultrafiltration liquid with an absorption resin or an ion exchange resin, and elution with ethanol to obtain purified extract liquid; (4) concentrating the purified extract liquid under vacuum; (5) spray drying the concentrated liquid. The extract can contain: 10-45% of cyanidin, 10-25% of catechin, and 40-80% of OPC, and with a total polyphenol content as high as 70-100%. The extract can be used for preparing drugs or food containing antioxidants, or used for improving metabolic syndrome or eyesight.Type: GrantFiled: October 20, 2010Date of Patent: June 26, 2012Assignee: Beijing Gingko-Group Biological Technology Co., Ltd.Inventors: Yanmei Li, Fengying Zhou, Xiarui Dou