Patents by Inventor Lan Wei

Lan Wei 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).

  • Publication number: 20180057683
    Abstract: A cover for a tablet, a mobile phone or a laptop bottom and a watch strap, consisting at least partly of a polymer composition containing: (A) a thermoplastic elastomer, and (B) 1-30 wt. % of an epoxydized plasticizer.
    Type: Application
    Filed: March 8, 2016
    Publication date: March 1, 2018
    Inventors: Angelika SCHMIDT, Lan WEI
  • Patent number: 9882502
    Abstract: A pre-charge control method for a hybrid multilevel power converter comprises steps of: (a) controlling access of the current-limiting resistor unit, limiting current from the AC power via the current-limiting resistor unit, and outputting the current; (b) controlling the second capacitor unit to bypass, and charging the first capacitor unit; (c) controlling the access of the second capacitor unit when the first capacitor unit is charged to a third preset voltage, and charging the first and second capacitor units at the same time; (d) controlling the first capacitor unit to bypass when the second capacitor unit is charged to a fourth preset voltage, or the first capacitor unit is charged to a first preset voltage, and charging the second capacitor unit; and (e) controlling the access of the first capacitor units and the current-limiting resistor unit to bypass when the second capacitor unit is charged to a second preset voltage.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: January 30, 2018
    Assignee: Delta Electronics (Shanghai) Co., LTD.
    Inventors: Wei Xie, Jianfei Zheng, Dingkun Shen, Lan Wei, Jianping Ying, Zhiming Hu, Wei Xu, Wei Tian
  • Patent number: 9868733
    Abstract: Novel compounds of the structural formula (I) are activators of AMP-protein kinase and may be useful in the treatment, prevention and suppression of diseases mediated by the AMPK-activated protein kinase. The compounds of the present invention may be useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: January 16, 2018
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: James M. Apgar, Tesfaye Biftu, Ping Chen, Danqing Feng, Jacqueline D. Hicks, Ahmet Kekec, Kenneth J. Leavitt, Bing Li, Iyassu Sebhat, Xiaoxia Qian, Lan Wei, Robert R. Wilkening, Zhicai Wu, Ashok Arasappan
  • Publication number: 20170317576
    Abstract: A hybrid topology power converter includes a three-level circuit module and a cascaded H-bridge circuit module. A control method includes the following steps. Firstly, a zero sequence component is injected into a total modulation wave, thereby generating a compensated total modulation wave. Then, a first voltage signal is generated according to the compensated total modulation wave. An H-bridge modulation wave is generated according to the compensated total modulation wave and the first voltage signal. A three-level driving signal is generated according to the first voltage signal, and an H-bridge driving signal is generated according to the H-bridge modulation wave. A duty cycle of at least one switch element of the three-level circuit module is adjusted according to the three-level driving signal. A duty cycle of at least one switch elements of the cascaded H-bridge circuit module is adjusted according to the H-bridge driving signal.
    Type: Application
    Filed: April 26, 2017
    Publication date: November 2, 2017
    Inventors: Dingkun Shen, Jianfei Zheng, Wei Xu, Jianping Ying, Lan Wei, Zhiming Hu
  • Publication number: 20170294847
    Abstract: A pre-charge control method for a hybrid multilevel power converter comprises steps of: (a) controlling access of the current-limiting resistor unit, limiting current from the AC power via the current-limiting resistor unit, and outputting the current; (b) controlling the second capacitor unit to bypass, and charging the first capacitor unit; (c) controlling the access of the second capacitor unit when the first capacitor unit is charged to a third preset voltage, and charging the first and second capacitor units at the same time; (d) controlling the first capacitor unit to bypass when the second capacitor unit is charged to a fourth preset voltage, or the first capacitor unit is charged to a first preset voltage, and charging the second capacitor unit; and (e) controlling the access of the first capacitor units and the current-limiting resistor unit to bypass when the second capacitor unit is charged to a second preset voltage.
    Type: Application
    Filed: January 5, 2017
    Publication date: October 12, 2017
    Inventors: Wei Xie, Jianfei Zheng, Dingkun Shen, Lan Wei, Jianping Ying, Zhiming Hu, Wei Xu, Wei Tian
  • Patent number: 9556193
    Abstract: The novel benzimidazole hexahydrofuro[3,2-B]furan derivatives of the present invention are activators of AMP-protein kinase and may be useful in the treatment, prevention and suppression of diseases mediated by the AMPK-activated protein kinase. The compounds of the present invention may be useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: January 31, 2017
    Assignee: Merck Shapr & Dohme Corp.
    Inventors: James M. Apgar, Ashok Arasappan, Tesfaye Biftu, Ping Chen, Danqing Feng, Erin Guidry, Jacqueline Hicks, Ahmet Kekec, Kenneth J. Leavitt, Bing Li, Iyassu Sebhat, Xiaoxia Qian, Lan Wei, Robert R. Wilkening, Zhicai Wu
  • Patent number: 9540364
    Abstract: Novel compounds of the structural formula (I) are activators of AMP-protein kinase and may be useful in the treatment, prevention and suppression of diseases mediated by the AMPK-activated protein kinase. The compounds of the present invention may be useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: January 10, 2017
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: James M. Apgar, Tesfaye Biftu, Ping Chen, Danqing Feng, Jacqueline D. Hicks, Ahmet Kekec, Kenneth J. Leavitt, Bing Li, Iyassu Sebhat, Xiaoxia Qian, Lan Wei, Robert R. Wilkening, Zhicai Wu
  • Patent number: 9527839
    Abstract: Novel compounds described herein are activators of AMP-protein kinase and may be useful in the treatment, prevention and suppression of diseases mediated by the AMPKactivated protein kinase. The compounds of the present invention may be useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: December 27, 2016
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: James M. Apgar, Tesfaye Biftu, Ping Chen, Danqing Feng, Jacqueline D. Hicks, Ahmet Kekec, Kenneth J. Leavitt, Bing Li, Iyassu Sebhat, Xiaoxia Qian, Lan Wei, Robert R. Wilkening, Zhicai Wu
  • Patent number: 9382243
    Abstract: Novel compounds of the structural formula (I) are activators of AMP-protein kinase and may be useful in the treatment, prevention and suppression of diseases mediated by the AMPK activated protein kinase. The compounds of the present invention may be useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: July 5, 2016
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: James M. Apgar, Tesfaye Biftu, Ping Chen, Danqing Feng, Jacqueline D. Hicks, Ahmet Kekec, Kenneth J. Leavitt, Bing Li, Iyassu Sebhat, Xiaoxia Qian, Lan Wei, Robert R. Wilkening, Zhicai Wu
  • Patent number: 9290517
    Abstract: Novel compounds of the structural formula (I) are activators of AMP-protein kinase and may be useful in the treatment, prevention and suppression of diseases mediated by the AMPK activated protein kinase. The compounds of the present invention may be useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: March 22, 2016
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: James M. Apgar, Ashok Arasappan, Tesfaye Biftu, Ping Chen, Danqing Feng, Erin Guidry, Jacqueline D. Hicks, Ahmet Kekec, Kenneth J. Leavitt, Bing Li, Troy McCracken, Iyassu Sebhat, Xiaoxia Qian, Lan Wei, Robert R. Wilkening, Zhicai Wu
  • Publication number: 20150284411
    Abstract: Novel compounds of the structural formula (I) are activators of AMP-protein kinase and may be useful in the treatment, prevention and suppression of diseases mediated by the AMPK activated protein kinase. The compounds of the present invention may be useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Application
    Filed: August 19, 2013
    Publication date: October 8, 2015
    Inventors: James M. Apgar, Ashok Arasappan, Tesfaye Biftu, Ping Chen, Danqing Feng, Erin Guidry, Jacqueline D. Hicks, Ahmet Kekec, Kenneth J. Leavitt, Bing Li, Troy McCracken, Iyassu Sebhat, Xiaoxia Qian, Lan Wei, Robert R. Wilkening, Zhicai Wu
  • Publication number: 20150218183
    Abstract: The novel benzimidazole hexahydrofuro[3,2-B]furan derivatives of the present invention are activators of AMP-protein kinase and may be useful in the treatment, prevention and suppression of diseases mediated by the AMPK-activated protein kinase. The compounds of the present invention may be useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Application
    Filed: August 16, 2013
    Publication date: August 6, 2015
    Inventors: James M. Apgar, Ashok Arasappan, Tesfaye Biftu, Ping Chen, Danqing Feng, Erin Guidry, Jacqueline Hicks, Ahmet Kekec, Kenneth J. Leavitt, Bing Li, Iyassu Sebhat, Xiaoxia Qian, Lan Wei, Robert R. Wilkening, Zhicai Wu
  • Publication number: 20150218149
    Abstract: Novel compounds of the structural formula (I) are activators of AMP-protein kinase and may be useful in the treatment, prevention and suppression of diseases mediated by the AMPK-activated protein kinase. The compounds of the present invention may be useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Application
    Filed: August 15, 2013
    Publication date: August 6, 2015
    Inventors: James M. Apgar, Tesfaye Biftu, Ping Chen, Danqing Feng, Jacqueline D. Hicks, Ahmet Kekec, Kenneth J. Leavitt, Bing Li, Iyassu Sebhat, Xiaoxia Qian, Lan Wei, Robert R. Wilkening, Zhicai Wu
  • Publication number: 20150210685
    Abstract: Novel compounds of the structural formula (I) are activators of AMP-protein kinase and may be useful in the treatment, prevention and suppression of diseases mediated by the AMPKactivated protein kinase. The compounds of the present invention may be useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Application
    Filed: August 16, 2013
    Publication date: July 30, 2015
    Inventors: James M. Apgar, Tesfaye Biftu, Ping Chen, Danqing Feng, Jacqueline D. Hicks, Ahmet Kekec, Kenneth J. Leavitt, Bing Li, Iyassu Sebhat, Xiaoxia Qian, Lan Wei, Robert R. Wilkening, Zhicai Wu
  • Publication number: 20150203487
    Abstract: Novel compounds of the structural formula (I) are activators of AMP-protein kinase and may be useful in the treatment, prevention and suppression of diseases mediated by the AMPK-activated protein kinase. The compounds of the present invention may be useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Application
    Filed: August 19, 2013
    Publication date: July 23, 2015
    Inventors: James M. Apgar, Tesfaye Biftu, Ping Chen, Danqing Feng, Jacqueline D. Hicks, Ahmet Kekec, Kenneth J. Leavitt, Bing Li, Iyassu Sebhat, Xiaoxia Qian, Lan Wei, Robert R. Wilkening, Zhicai Wu, Ashok Arasappan
  • Publication number: 20150197516
    Abstract: Novel compounds described herein are activators of AMP-protein kinase and may be useful in the treatment, prevention and suppression of diseases mediated by the AMPKactivated protein kinase. The compounds of the present invention may be useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Application
    Filed: August 15, 2013
    Publication date: July 16, 2015
    Inventors: James M. Apgar, Tesfaye Biftu, Ping Chen, Danqing Feng, Jacqueline D. Hicks, Ahmet Kekec, Kenneth J. Leavitt, Bing Li, Iyassu Sebhat, Xiaoxia Qian, Lan Wei, Robert R. Wilkening, Zhicai Wu
  • Patent number: 9029377
    Abstract: Cyclohexyl sulfonamide compounds which are platelet-activating factor (PAF) receptor antagonists. Said compounds may be useful, for example, for the treatment of atherosclerosis or other PAF-mediated disorders, including inflammatory, cardiovascular, and immune disorders.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: May 12, 2015
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Anthony Ogawa, Feroze Ujjainwalla, Lin Chu, Bing Li, Lan Wei, Jinyou Xu, Hyun Ok, Aaron Lackner, Ihor Kopka
  • Patent number: 8853212
    Abstract: The present invention is directed to novel substituted aminotetrahydrothiopyrans and derivatives thereof of structural formula (I) which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: October 7, 2014
    Assignee: Merck Sharp & Dohme Corp
    Inventors: Robert R. Wilkening, James M. Apgar, Tesfaye Biftu, Danqing Feng, Xiaoxia Qian, Lan Wei
  • Patent number: 8796258
    Abstract: Novel compounds of structural formula (I) are activators of AMP-protein kinase and are useful in the treatment, prevention and suppression of diseases mediated by the AMPK-activated protein kinase. The compounds of the present invention are useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: August 5, 2014
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Rajan Anand, James M. Apgar, Tesfaye Biftu, Ping Chen, Lin Chu, Vincent J. Colandrea, Guizhen Dong, James F. Dropinski, Danqing Feng, Jacqueline D. Hicks, Jinlong Jiang, Alexander J. Kim, Kenneth J. Leavitt, Bing Li, Xiaoxia Qian, Iyassu Sebhat, Lan Wei, Robert R. Wilkening, Zhicai Wu
  • Publication number: 20130123237
    Abstract: Novel compounds of structural formula (I) are activators of AMP-protein kinase and are useful in the treatment, prevention and suppression of diseases mediated by the AMPK-activated protein kinase. The compounds of the present invention are useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Application
    Filed: February 23, 2012
    Publication date: May 16, 2013
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Rajan Anand, James M. Apgar, Tesfaye Biftu, Ping Chen, Lin Chu, Vincent J. Colandrea, Guizhen Dong, James F. Dropinski, Danqing Feng, Jacqueline D. Hicks, Jinlong Jiang, Alexander J. Kim, Kenneth J. Leavitt, Bing Li, Xiaoxia Qian, Iyassu Sebhat, Lan Wei, Robert R. Wilkening, Zhicai Wu