Patents by Inventor Haichao Liu
Haichao Liu 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: 11958552Abstract: A bionic robot is provided, which includes a body; a plurality of sets of wheeled leg devices arranged at intervals in a front-rear direction, each comprising two wheeled leg devices arranged symmetrically in a left-right direction, each comprising a leg assembly and a travel wheel, and a power output shaft connected to the travel wheel; and a suspension device disposed in the body and connected to at least two sets from the plurality of sets of wheeled leg devices. The at least two sets of wheeled leg devices are located at the foremost end and the backmost end respectively. The suspension device comprises a plurality of drive assemblies, each connected to a corresponding leg assembly, which each comprise: an electric cylinder being configured to drive a telescopic rod to extend or retract; a damper connected between the body and the leg assembly; and an elastic member fitted over the damper.Type: GrantFiled: October 29, 2020Date of Patent: April 16, 2024Assignees: INNER MONGOLIA SU MENG TECHNOLOGY POWER EQUIPMENT CO., LTD., CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJINGInventors: Jianwei Zhao, Hai Zhang, Zhikang Chi, Haichao Zhang, Chaoyi Liu, Xiaofei Ma
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Publication number: 20230407530Abstract: Disclosed is a device for twisting electrostatic spinning superfine fiber. The device comprises an outer sleeve and a middle sleeve, wherein the outer sleeve sleeves the middle sleeve, an annular gap is formed between the outer sleeve and the middle sleeve, a melt inlet communicating with the annular gap is formed in the outer sleeve, a conical hole is formed in the bottom end of the outer sleeve, the top end of the conical hole communicates with the bottom end of the annular gap, and the outer sleeve is wrapped with a heating ring used for heating a melt in the annular gap; a cylindrical metal rod is arranged in the middle sleeve in a penetrating mode, an interval is formed between the metal rod and the middle sleeve, the bottom end of the metal rod is fixedly connected with a circular truncated cone located below the conical hole.Type: ApplicationFiled: July 19, 2021Publication date: December 21, 2023Inventors: Hongbo Chen, Wenwen Han, Weimin Yang, Haichao Liu, Hui Liang, Chuansheng Wang
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Patent number: 6956134Abstract: Feeds comprising methanol, dimethyl ether or a mixture of the two are oxidized by contacting the feed with an oxygen-containing gas and a supported heteropolyacid catalyst containing molybdenum or molybdenum and vanadium. The primary products are methylal (dimethoxymethane) and methyl formate. Production of dimethyl ether from methanol can be inhibited by partial deactivation of acid sites on the Keggin catalyst.Type: GrantFiled: January 8, 2004Date of Patent: October 18, 2005Assignee: The Regents of the University of CaliforniaInventors: Haichao Liu, Enrique Iglesia
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Publication number: 20050154226Abstract: Feeds comprising methanol, dimethyl ether or a mixture of the two are oxidized by contacting the feed with an oxygen-containing gas and a supported heteropolyacid catalyst containing molybdenum or molybdenum and vanadium. The primary products are methylal (dimethoxymethane) and methyl formate. Production of dimethyl ether from methanol can be inhibited by partial deactivation of acid sites on the Keggin catalyst.Type: ApplicationFiled: January 8, 2004Publication date: July 14, 2005Applicant: The Regents of the University of CaliforniaInventors: Haichao Liu, Enrique Iglesia
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Publication number: 20050059839Abstract: A process for oxidation of methanol, ethanol, or a mixture of methanol and ethanol comprising contacting the methanol and/or ethanol with an oxygen-containing gas and a supported catalyst comprising one or more platinum group oxides. The process conditions and/or catalyst may be selected to as to selectively produce methyl formate from methanol or diethoxyethane from ethanol. The invention also includes certain novel supported platinum group metal oxide catalysts. Preferred catalysts include one or more ruthenium oxides.Type: ApplicationFiled: September 15, 2003Publication date: March 17, 2005Applicant: The Regents of the University of CaliforniaInventors: Haichao Liu, Enrique Iglesia
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Publication number: 20040220429Abstract: Dimethyl ether is converted to formaldehyde using a supported catalyst comprising molybdenum and/or vanadium oxides. The surface density of the oxide(s) ranges from greater than that for the isolated monomeric oxides upwards, so long as there is a substantial absence of bulk crystalline molybdenum and/or vanadium oxide(s). Conversion and selectivity to formaldehyde are improved as compared to data reported for known catalysts. Also disclosed is a supported catalyst comprising molybdenum and/or vanadium oxides wherein the support comprises one or more reducible metal oxides, preferably a layer or layers of one or more reducible metal oxides disposed on the surface of a particulate alumina or zirconia support.Type: ApplicationFiled: June 3, 2004Publication date: November 4, 2004Applicant: Regents of the University of CaliforniaInventors: Haichao Liu, Enrique Iglesia
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Patent number: 6781018Abstract: Dimethyl ether is converted to formaldehyde using a supported catalyst comprising molybdenum and/or vanadium oxides. The surface density of the oxide(s) ranges from greater than that for the isolated monomeric oxides upwards, so long as there is a substantial absence of bulk crystalline molybdenum and/or vanadium oxide(s). Conversion and selectivity to formaldehyde are improved as compared to data reported for known catalysts. Also disclosed is a supported catalyst comprising molybdenum and/or vanadium oxides wherein the support comprises one or more reducible metal oxides, preferably a layer or layers of one or more reducible metal oxides disposed on the surface of a particulate alumina or zirconia support.Type: GrantFiled: February 20, 2003Date of Patent: August 24, 2004Assignee: The Regents of the University of CaliforniaInventors: Haichao Liu, Enrique Iglesia
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Publication number: 20040044252Abstract: Dimethyl ether is converted to formaldehyde using a supported catalyst comprising molybdenum and/or vanadium oxides. The surface density of the oxide(s) ranges from greater than that for the isolated monomeric oxides upwards, so long as there is a substantial absence of bulk crystalline molybdenum and/or vanadium oxide(s). Conversion and selectivity to formaldehyde are improved as compared to data reported for known catalysts. Also disclosed is a supported catalyst comprising molybdenum and/or vanadium oxides wherein the support comprises one or more reducible metal oxides, preferably a layer or layers of one or more reducible metal oxides disposed on the surface of a particulate alumina or zirconia support.Type: ApplicationFiled: February 20, 2003Publication date: March 4, 2004Applicant: The Regents of the University of CaliforniaInventors: Haichao Liu, Enrique Iglesia
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Publication number: 20030166972Abstract: Dimethyl ether is converted to formaldehyde using a supported catalyst comprising molybdenum and/or vanadium oxides. The surface density of the oxide(s) ranges from greater than that for the isolated monomeric oxides upwards, so long as there is a substantial absence of bulk crystalline molybdenum and/or vanadium oxide(s). Conversion and selectivity to formaldehyde are improved as compared to data reported for known catalysts. Also disclosed is a catalyst comprising molybdenum and/or vanadium oxides supported on a layer of stannic oxide that is disposed on the surface of a particulate alumina or zirconia support.Type: ApplicationFiled: February 20, 2002Publication date: September 4, 2003Applicant: Regents of the University of California Office of Technology LicensingInventors: Haichao Liu, Enrique Iglesia
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Patent number: 6475948Abstract: An object of the present invention is to provide an ammoxidation reaction catalyst composed of an Sb—Re compound oxide with which ammoxidation into an unsaturated nitrile such as methacrylonitrile or the like can be performed in the presence of a molecular oxygen-containing gas and ammonia, and a method for manufacturing an unsaturated nitrile such as methacrylonitrile or the like from an aliphatic hydrocarbon such as isobutylene, isobutane or the like using this ammoxidation reaction catalyst. An unsaturated nitrile such as methacrylonitrile or the like is manufactured by subjecting an aliphatic hydrocarbon such as isobutylene, isobutane or the like to vapor phase contact ammoxidation with ammonia and a molecular oxygen-containing gas in the presence of an ammoxidation reaction catalyst composed of an Sb—Re compound oxide such as SbRe2O6 or the like.Type: GrantFiled: September 7, 2001Date of Patent: November 5, 2002Assignee: Japan Science and Technology CorporationInventors: Yasuhiro Iwasawa, Takafumi Shido, Haichao Liu