Patents by Inventor Yongfu Liu

Yongfu 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).

  • NOVEL TETRAHYDROQUINOLINE DERIVATIVES
    Publication number: 20120190677
    Abstract: The present invention relates to a compound of formula (I) or a pharmaceutically acceptable salt or ester thereof, wherein R1 to R8, A1 to A3 have the are as described herein and compositions including the compounds.
    Type: Application
    Filed: January 19, 2012
    Publication date: July 26, 2012
    Inventors: Lichun Feng, Mengwei Huang, Yongfu Liu, Guolong Wu, Shixiang Yan, Hongying Yun, Mingwei Zhou
  • NOVEL TETRAHYDROQUINOLINE DERIVATIVES
    Publication number: 20120101127
    Abstract: The present invention relates to compounds according to formula (I) and pharmaceutically acceptable salts or esters thereof, wherein R1 to R7 have the significance given herein. The compounds are activators of AMP-activated protein kinase (AMPK) and are useful in the treatment or prophylaxis of diseases that are related to AMPK regulation, such as obesity, dyslipidemia, hyperglycemia, type 1 or type 2 diabetes and cancers.
    Type: Application
    Filed: October 13, 2011
    Publication date: April 26, 2012
    Inventors: Lichun Feng, Mengwei Huang, Yongfu Liu, Guolong Wu, Mingwei Zhou
  • NOVEL TETRAHYDRO-QUINOLINE DERIVATIVES
    Publication number: 20120004218
    Abstract: A compound of formula (I) or a pharmaceutically acceptable salt or ester thereof, wherein A1 to A3 and R1 to R10 have the significance given in claim 1, can be used as a medicament. These compounds are useful in the treatment or prophylaxis of diseases that are related to AMPK regulation, such as obesity, dyslipidemia, hyperglycemia, type 1 or type 2 diabetes and cancers.
    Type: Application
    Filed: June 27, 2011
    Publication date: January 5, 2012
    Inventors: Li Chen, Lichun Feng, Yun He, Mengwei Huang, Yongfu Liu, Hongying Yun, Mingwei Zhou
  • NOVEL 3,3-DIMETHYL TETRAHYDROQUINOLINE DERIVATIVES
    Publication number: 20110257151
    Abstract: A compound of formula (I) as well as pharmaceutically acceptable salt thereof, wherein R1 to R5 have the significance given in claim 1, can be used as a medicament.
    Type: Application
    Filed: April 7, 2011
    Publication date: October 20, 2011
    Inventors: Li Chen, Lichun Feng, Mengwei Huang, Yongfu Liu, Guolong Wu, Jim Zhen Wu, Mingwei Zhou
  • High cooling efficiency and durable TCC for constant slip application
    Publication number: 20070034469
    Abstract: A torque converter clutch for a constant slip application including a cover, a friction plate secured to the cover, and at least one channel between the cover and the friction plate. In another embodiment, the torque converter clutch may further include a one-way valve operatively arranged to permit a fluid to flow out of a channel, while preventing the fluid from flowing in through the channel.
    Type: Application
    Filed: August 14, 2006
    Publication date: February 15, 2007
    Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Shiqi Zhu, Kunding Wang, Yongfu Liu, Jean-Francois Heller
  • Torque converter
    Publication number: 20040172936
    Abstract: A method and a device are described for influencing the flow in a torque converter. The peripheral velocity of the fluid on its way to the open end of the transmission input shaft is made to approach the respective peripheral velocity of the converter housing.
    Type: Application
    Filed: March 5, 2004
    Publication date: September 9, 2004
    Applicant: LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG
    Inventors: Bruno Mueller, Philip George, Christine Buedenbender, Todd Sturgin, Yongfu Liu, Aliihsan Karamavruc, Adam Uhler, Ramakant Rambhatla, Steven Olsen, Mike Clason, Joachim Hoffmann, Scott Schrader