Patents by Inventor Daling Liu

Daling 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).

  • Publication number: 20190246664
    Abstract: The invention relates to a site-specific mutagenesis modified yeast dipeptidyl peptidase III. The yeast dipeptidyl peptidase III is an isolated mutant produced by making a plurality of amino acid substitutions in a wild type yeast dipeptidyl peptidase III derived from Saccharomyces cerevisiae S288c having an amino acid sequence of SEQ ID NO. 1, said amino acid substitutions comprising substitutions at positions 570, 572 and 574, so that the site-specific mutagenesis modified yeast dipeptidyl peptidase III is an enzyme having an oxidative decomposition activity on 6-methoxy-bifuran coumarin. The site-specific mutagenesis modified yeast dipeptidyl peptidase III can be used in preparation of a feed and additives thereof, and a food and additives thereof, in which 6-methoxy difuran coumarin is eliminated, and can be used in preparation of a medicament for preventing diseases induced by 6-methoxy-difuran coumarin.
    Type: Application
    Filed: November 28, 2016
    Publication date: August 15, 2019
    Applicant: GUANGDONG GENUIZYMES ANIMAL HEALTH CO., LTD
    Inventors: Daling LIU, Dongsheng YAO, Xiyang WU, Chunfang XIE
  • Patent number: 10202883
    Abstract: A common rail assembly used in a urea injection system, comprising at least a first common rail and a second common rail which are connected to each other, wherein the first common rail comprises a first housing, a pressure detecting device mounted on the first housing and a pressure adjusting device. The first housing comprises a first urea inlet channel, a first urea outlet channel, at least one first feeding inlet connected to the first urea inlet channel and at least one first back-flow outlet connected to the first urea outlet channel. The pressure detecting device is connected to the first urea inlet channel. The pressure adjusting device can connect/disconnect the first urea inlet channel to/from the first urea outlet channel. Also disclosed are a urea injection system and the application of the common rail assembly.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: February 12, 2019
    Assignee: TENNECO (SUZHOU) EMISSION SYSTEM CO., LTD.
    Inventors: Zhenqiu Yang, Chao Gong, Gaofeng Fan, Daling Liu, Haitao Zhang, Anzhou Wu, Shuai Guan
  • Publication number: 20170328260
    Abstract: A common rail assembly used in a urea injection system, comprising at least a first common rail and a second common rail which are connected to each other, wherein the first common rail comprises a first housing, a pressure detecting device mounted on the first housing and a pressure adjusting device. The first housing comprises a first urea inlet channel, a first urea outlet channel, at least one first feeding inlet connected to the first urea inlet channel and at least one first back-flow outlet connected to the first urea outlet channel. The pressure detecting device is connected to the first urea inlet channel. The pressure adjusting device can connect/disconnect the first urea inlet channel to/from the first urea outlet channel. Also disclosed are a urea injection system and the application of the common rail assembly.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 16, 2017
    Inventors: Zhenqiu YANG, Chao GONG, Gaofeng FAN, Daling LIU, Haitao ZHANG, Anzhou WU, Shuai GUAN
  • Patent number: 7695751
    Abstract: The present invention relates to a detoxifizyme with the activity of transforming aflatoxin and the gene encodes thereof. Firstly a novel protein is isolated and purified, named aflatoxin-detoxifizyme (ADTZ), which has the activity of transforming aflatoxin. The ADTZ gene is obtained through specific primers, and the gene is purified and sequenced. The gene encoding of ADTZ is cloned from the total RNA of Armillariella tabescens. The recombinant protein is expressed and purified through various expression systems using genetic engineering methods. The said detoxifizyme has bioactivity of transforming AFB1, reducing mutagenic effects of AFB1. It has great potential for the manufacturing of feed or food and development of anti-tumor medicament.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: April 13, 2010
    Assignee: Guangzhou Co-Win Bioengineering Co., Ltd.
    Inventors: Dongsheng Yao, Daling Liu, Min Guan, Chunfang Xie
  • Publication number: 20080260711
    Abstract: The present invention relates to a detoxifizyme with the activity of transforming aflatoxin and the gene encodes thereof. Inventors firstly isolate and purify a novel protein, named aflatoxin-detoxifizyme (ADTZ), which has the activity of transforming aflatoxin. The primes specify to the ADTZ gene are obtained through purification and sequencing. The gene encoding of ADTZ is cloned from the total RNA of Armillariella tabescens. The recombinant protein is expressed and purified through various expression systems using genetic engineering methods. The said detoxifizyme has bioactivity of transforming AFB1, reducing mutagenic effects of AFB1. It has great potential for the manufacturing of feed or food and development of anti-tumor medicament.
    Type: Application
    Filed: January 13, 2005
    Publication date: October 23, 2008
    Inventors: Dongsheng Yao, Daling Liu, Min Guan, Chunfang Xie