Patents by Inventor Lianfeng Ding

Lianfeng Ding 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).

  • MULTIFUNCTIONAL ALL-TERRAIN WALKING HYDRAULIC EXCAVATOR
    Publication number: 20160319513
    Abstract: A multifunctional all-terrain walking-type hydraulic excavator includes a multifunctional working apparatus (2), a cab (3), a slew assembly (4), a slewing bearing (6), and a walking-type chassis (5). By means of a hydraulic capstan (5.9) arranged at the forward end of the chassis (5), the excavator is able to perform self-rescue and towing assistance. The walking-type chassis (5) adapts to terrain through adjustments of the swing angles of the forward and rear legs (5.2, 5.4, 5.5, 5.6) and thus is able to walk and operate in difficult terrain.
    Type: Application
    Filed: July 11, 2016
    Publication date: November 3, 2016
    Inventors: XIUFENG CHEN, XIAOMING SHI, FENG XUE, JINGKE XU, YUN ZHANG, CHENGPENG GU, JUNQI WU, YONG CAO, RAN GAO, JIE ZHANG, LIPING ZHANG, FUDE WANG, LEI LIU, YUXIANG LIU, YUMING WEI, KAI ZHU, XUEFENG WEI, ZHIHAN PENG, LIANFENG DING, JING HAN, JING LIU
  • Power factor correction circuit, the control circuit and the method thereof
    Patent number: 9130473
    Abstract: A power factor correction circuit including a rectifier bridge, an energy storage component, a power switch, a second switch and a control circuit provides reduced THD and improved PF performance under a high input AC voltage.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: September 8, 2015
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventors: Sicong Lin, Lianfeng Ding, Zhengxing Li
  • POWER FACTOR CORRECTION CIRCUIT, THE CONTROL CIRCUIT AND THE METHOD THEREOF
    Publication number: 20140003105
    Abstract: A power factor correction circuit including a rectifier bridge, an energy storage component, a power switch, a second switch and a control circuit provides reduced THD and improved PF performance under a high input AC voltage.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 2, 2014
    Inventors: Sicong Lin, Lianfeng Ding, Zhengxing Li