Patents by Inventor Lanhui Ren
Lanhui Ren 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: 11927077Abstract: A high-frequency composite impactor including a high-frequency axial and a torsional impact assembly is disclosed. The high-frequency axial impact assembly includes an upper self-excited oscillation cavity, a lower self-excited oscillation cavity, an adjustment block and a lock nut. The torsional impact assembly includes an upper end cover, a reversing switch, a pendulum, a lower shell, a lower end cover, a nozzle, a connecting block and a retaining ring. The high-frequency axial impact assembly converts the flowing drilling fluid into a pulsed jet to achieve a high-frequency axial impact. The torsional impact assembly enables a torsional impact through a shunt, and finally enables a high-frequency composite impact, which can effectively reduce the stick-slip of the drill string, jump drilling and other downhole accidents. By reducing the friction between the drill string and the borehole wall, the impactor can reduce WOB loss, increase the ROP, and improve the drilling efficiency.Type: GrantFiled: September 26, 2022Date of Patent: March 12, 2024Assignees: Southwest Petroleum University, Sichuan Xieming Technology Co., Ltd.Inventors: Jialin Tian, Lanhui Mao, Yanniu Ren, Lin Yang, Haolin Song, Bo He, Jun Li, Lei Cha, Zhe Zhang, Yu Wei
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Patent number: 9770026Abstract: Disclosed is a substituted pyrimidine compound having a structure as represented by formula PY. See the description for the definition of each substituent in the formula. The compound of the present invention provides broad-spectrum bactericidal, pesticidal, and acaricidal activities, provides great control effects against plant diseases such as cucumber downy mildew, corn rust, wheat powdery mildew, rice blast, and cucumber gray mold, specifically provides improved control effects against cucumber downy mildew, corn rust, wheat powdery mildew, and rice blast, provides great control effects against aphid, carmine spider mite, diamondback moth, and armyworm, and acquires great effects at a minimal dosage. The compound of the present invention also provides characteristics such as a simplified preparation method.Type: GrantFiled: October 24, 2013Date of Patent: September 26, 2017Assignee: Shenyang Sinochem Agrochemicals R&D Co., Ltd.Inventors: Changling Liu, Lizeng Wang, Yuquan Song, Xufeng Sun, Jie Lan, Aiying Guan, Junfeng Wang, Jinbo Zhang, Cong Feng, Minna Zhu, Zhinian Li, Lanhui Ren, Xiuhui Chang, Fan Yang, Qin Sun, Wei Chen, Shaowu Liu, Yinping Zhou, Zhonggang Shan, Baoshan Chai, Bin Wang, Jizhong Zhou
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Patent number: 9447081Abstract: The invention discloses a homopiperony lamine compound which has a structural general formula I as follows as shown in the specification: wherein definitions of substituents in the formula are as shown in the specification. The compound shown as the general formula I has broad-spectrum bactericidal and insecticidal activity in the field of agriculture. The compound shown as the general formula I has a good prevention effect on various germs such as cucumber downy mildew, wheat powdery mildew, puccinia sorghi, rice blast and cucumber gray mold, and particularly, still has the good prevention and control effect on the cucumber downy mildew, the puccinia sorghi and the wheat powdery mildew at a lower dosage. At the same time, a part of compound has better insecticidal activity, and can be used for preventing and controlling various insect pests such as diamondback moths, myzus persicae, armyworms and tetranychus cinabarinus boisdu.Type: GrantFiled: October 24, 2013Date of Patent: September 20, 2016Assignee: SHENYANG SINOCHEM AGROCHEMICALS R&D CO., LTD.Inventors: Changling Liu, Aiying Guan, Jie Lan, Lizeng Wang, Bin Wang, Minna Zhu, Qin Sun, Weijing Ren, Cong Feng, Lanhui Ren, Baoshan Chai, Zhinian Li
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Publication number: 20150257385Abstract: Disclosed is a substituted pyrimidine compound having a structure as represented by formula PY. See the description for the definition of each substituent in the formula. The compound of the present invention provides broad-spectrum bactericidal, pesticidal, and acaricidal activities, provides great control effects against plant diseases such as cucumber downy mildew, corn rust, wheat powdery mildew, rice blast, and cucumber gray mold, specifically provides improved control effects against cucumber downy mildew, corn rust, wheat powdery mildew, and rice blast, provides great control effects against aphid, carmine spider mite, diamondback moth, and armyworm, and acquires great effects at a minimal dosage. The compound of the present invention also provides characteristics such as a simplified preparation method.Type: ApplicationFiled: October 24, 2013Publication date: September 17, 2015Inventors: Changling Liu, Lizeng Wang, Yuquan Song, Xufeng Sun, Jie Lan, Aiying Guan, Junfeng Wang, Jinbo Zhang, Cong Feng, Minna Zhu, Zhinian Li, Lanhui Ren, Xiuhui Chang, Fan Yang, Qin Sun, Wei Chen, Shaowu Liu, Yinping Zhou, Zhonggang Shan, Baoshan Chai, Bin Wang, Jizhong Zhou
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Publication number: 20150225378Abstract: The invention discloses a homopiperony lamine compound which has a structural general formula I as follows as shown in the specification: wherein definitions of substituents in the formula are as shown in the specification. The compound shown as the general formula I has broad-spectrum bactericidal and insecticidal activity in the field of agriculture. The compound shown as the general formula I has a good prevention effect on various germs such as cucumber downy mildew, wheat powdery mildew, puccinia sorghi, rice blast and cucumber gray mold, and particularly, still has the good prevention and control effect on the cucumber downy mildew, the puccinia sorghi and the wheat powdery mildew at a lower dosage. At the same time, a part of compound has better insecticidal activity, and can be used for preventing and controlling various insect pests such as diamondback moths, myzus persicae, armyworms and tetranychus cinabarinus boisdu.Type: ApplicationFiled: October 24, 2013Publication date: August 13, 2015Applicant: SINOCHEM CORPORATIONInventors: Changling Liu, Aiying Guan, Jie Lan, Lizeng Wang, Bin Wang, Minna Zhu, Qin Sun, Weijing Ren, Cong Feng, Lanhui Ren, Baoshan Chai, Zhinian Li
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Patent number: 8614214Abstract: Disclosed is a pyrazole amide compound having fungicidal activity, with a structure shown by the general formula (I): Each of the substituents of the compound being defined as in the description. The compound of the present invention has fungicidal activity, and excellent prevention and controlling effects on diseases, such as cucumber downy mildew, corn rust, wheat powdery mildew, rice blast, etc., and in particular, a better prevention and controlling effect on cucumber downy mildew and corn rust. Also disclosed is a process for preparing the compound, a fungicidal composition containing the compound of general formula (I) and the use thereof in preventing and controlling disease in crops.Type: GrantFiled: November 2, 2011Date of Patent: December 24, 2013Assignee: Sinochem CorporationInventors: Changling Liu, Lizeng Wang, Zhinian Li, Xufeng Sun, Jie Lan, Lanhui Ren, Qiang Wu, Huiwei Chi
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Publication number: 20130225585Abstract: Disclosed is a pyrazole amide compound having fungicidal activity, with a structure shown by the general formula (I): Each of the substituents of the compound being defined as in the description. The compound of the present invention has fungicidal activity, and excellent prevention and controlling effects on diseases, such as cucumber downy mildew, corn rust, wheat powdery mildew, rice blast, etc., and in particular, a better prevention and controlling effect on cucumber downy mildew and corn rust. Also disclosed is a process for preparing the compound, a fungicidal composition containing the compound of general formula (I) and the use thereof in preventing and controlling disease in crops.Type: ApplicationFiled: November 2, 2011Publication date: August 29, 2013Applicants: SHENYANG RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CO., LTD., SINOCHEM CORPORATIONInventors: Changling Liu, Lizeng Wang, Zhinian Li, Xufeng Sun, Jie Lan, Lanhui Ren, Qiang Wu, Huiwei Chi