Patents by Inventor Liping Hou

Liping Hou 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).

  • Polypropylene with narrow molecular weight distribution range and processes for preparation thereof
    Patent number: 10301405
    Abstract: Disclosed herein are a polypropylene with narrow molecular weight distribution and a process for preparing the same in a reactor using a Ziegler-Natta catalyst.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: May 28, 2019
    Assignees: Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corp, China Petroleum & Chemical Corporation
    Inventors: Liangshi Wang, Luqiang Yu, Shijun Zhang, Jinliang Qiao, Meifang Guo, Zhichao Yang, Jianjun Yin, Honghong Huang, Liping Hou, Jianfang Sheng
  • Propylene random copolymer, method for its preparation, and compositions and articles containing the same
    Patent number: 9303108
    Abstract: The present invention relates to a propylene-butene-1 random copolymer which has a butene-1 content of 1-6 mol % and a relative dispersity of butene-1, as determined according to NMR method, of greater than 98.5%. The propylene-butene-1 random copolymer of the present invention has a high relative dispersity of butene-1, as well as better transparency and heat resistance, so that it is more suitable for packaging food that may be edible after heating. Moreover, the copolymer has a lower xylene solubles content at room temperature. In addition, the present invention further relates to a method for preparing the copolymer and to a composition and an article comprising the copolymer.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: April 5, 2016
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Meifang Guo, Wenbo Song, Liying Zhang, Liping Hou, Wenjun Wei, Hao Zhang, Yujing Tang, Huijie Hu
  • POLYPROPYLENE WITH NARROW MOLECULAR WEIGHT DISTRIBUTION RANGE AND PROCESSES FOR PREPARATION THEREOF
    Publication number: 20140121339
    Abstract: Disclosed herein are a polypropylene with narrow molecular weight distribution and a process for preparing the same in a reactor using a Ziegler-Natta catalyst.
    Type: Application
    Filed: October 30, 2013
    Publication date: May 1, 2014
    Applicants: BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHNA PETROLEUM & CHEMICAL CORP, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Liangshi WANG, Luqiang YU, Shijun ZHANG, Jinliang QIAO, Meifang GUO, Zhichao YANG, Jianjun YIN, Honghong HUANG, Liping HOU, Jianfang SHENG
  • Herbal chinese joint complex
    Patent number: 6350476
    Abstract: The present invention provides compositions comprising the ingredients of plants of species of the genera Stephania, Coix, Pinellia, Prunus, Phellodendron, Sophora, Tetrapanax, Stemona, Glycyrrhiza, Tripterygium, Forsythia and Siegesbeckia, wherein such compositions have analgesic, antipyretic, and antiinflammatory properties. The present invention also provides methods of using such compositions for treating various conditions and diseases, including joint swelling, joint pain, osteoarthritis and rheumatoid arthritis.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: February 26, 2002
    Assignee: Shanxi Zhengzhon Pharmaceutical Co., Ltd.
    Inventor: Liping Hou
  • Compositions with analgesic, antipyretic and antiinflammatory properties
    Patent number: 5908628
    Abstract: The present invention provides compositions comprising talc, silkworm excrement, and ingredients of plants of species of the genera Stephania, Coix, Pinellia, Prunus, Phellodendron, Sophora, Tetrapanax, Stemona, Glycyrrhiza, Tripterygium, Forsythia and Siegesbeckia, wherein such compositions have analgesic, antipyretic, and antiinflammatory properties. The present invention also provides methods of using such compositions for treating various diseases, including osteoarthritis and rheumatoid arthritis.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: June 1, 1999
    Inventor: Liping Hou
  • Dual etchant process, particularly for gate recess fabrication in GaAs MMIC chips
    Patent number: 5436201
    Abstract: A semiconductor substrate is etched in a two-step sequence, with two different liquid etchants that have different lateral etch rates. The relative time periods for which the etchants are applied are selected to achieve a close match between the actual etch profile and the desired profile. The process is particularly applicable to the formation of a gate recess in a GaAs MESFET for high power amplification.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: July 25, 1995
    Assignee: Hughes Aircraft Company
    Inventors: Tom Y. Chi, Danny Li, Liping Hou, Tom Quach