Patents by Inventor Qing Qing Yuan

Qing Qing Yuan 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).

  • COMPOSITIONS AND METHODS TO INHIBIT FOULING OF AMMONIUM SALTS
    Publication number: 20230159440
    Abstract: Disclosed are antifoulant compounds or compositions used for inhibiting or reducing the deposition of ammonium salts.
    Type: Application
    Filed: April 8, 2020
    Publication date: May 25, 2023
    Applicant: ECOLAB USA INC.
    Inventors: Shiguang LI, Peter Jian Jun SUN, Qing Qing YUAN
  • ANTI-FREEZING DISPERSANT AND MANUFACTURING PROCESS THEREOF
    Publication number: 20220235273
    Abstract: The present disclosure provides methods of treating industrial processes with compositions, methods of manufacturing the compositions, and various anti-freezing compositions suitable for use in the industrial processes. The anti-freezing dispersant compositions may include, for example, sulfonated dispersants and winterization solvents. The anti-freezing dispersant compositions may prevent fouling in the industrial processes.
    Type: Application
    Filed: January 20, 2022
    Publication date: July 28, 2022
    Applicant: ECOLAB USA INC.
    Inventors: Shiguang LI, Meng KONG, Qing Qing YUAN
  • Method and composition for detackifying organic contaminants in the process of pulping and papermaking
    Patent number: 10538880
    Abstract: The present invention discloses a method for detackifying organic contaminants in the process of pulping and papermaking and a composition used for the same. Specifically, the invention discloses that the water circulation system of pulping and papermaking process can be provided with non-ionic cellulose ether and cationic coagulant in lower amount, through which, the deposition of organic contaminants can be inhibited under the synergistic action of pre-coagulation and detackification.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: January 21, 2020
    Assignee: Ecolab USA Inc.
    Inventors: Qing Qing Yuan, Qun Dong, Zhi Chen, Jian Kun Shen
  • Method and Composition for Detackifying Organic Contaminants in the Process of Pulping and Papermaking
    Publication number: 20170314203
    Abstract: The present invention discloses a method for detackifying organic contaminants in the process of pulping and papermaking and a composition used for the same. Specifically, the invention discloses that the water circulation system of pulping and papermaking process can be provided with non-ionic cellulose ether and cationic coagulant in lower amount, through which, the deposition of organic contaminants can be inhibited under the synergistic action of pre-coagulation and detackification.
    Type: Application
    Filed: July 6, 2017
    Publication date: November 2, 2017
    Applicant: Ecolab USA Inc.
    Inventors: Qing Qing Yuan, Qun Dong, Zhi Chen, Jian Kun Shen
  • A Method of Controlling Hydrophobic Contaminants by Utilizing a Fluorescent Dye
    Publication number: 20160245757
    Abstract: The present invention pertains to a method of determining the quantity of hydrophobic contaminants in a papermaking process by utilizing a fluorescent dye, to a method of evaluating treatment chemicals for controlling hydrophobic contaminants by utilizing a fluorescent dye, and to a method of optimizing the amounts of treatment chemicals for reducing hydrophobic contaminants in a papermaking process by utilizing fluorescent dye.
    Type: Application
    Filed: September 25, 2014
    Publication date: August 25, 2016
    Applicant: Ecolab USA Inc.
    Inventor: Qing Qing Yuan
  • METHOD AND COMPOSITION FOR DETACKIFYING ORGANIC CONTAMINANTS IN THE PROCESS OF PULPING AND PAPERMAKING
    Publication number: 20150159328
    Abstract: The present invention discloses a method for detackifying organic contaminants in the process of pulping and papermaking and a composition used for the same. Specifically, the invention discloses that the water circulation system of pulping and papermaking process can be provided with non-ionic cellulose ether and cationic coagulant in lower amount, through which, the de position of organic contaminants can be inhibited under the synergistic action of pre-coagulation and detackification.
    Type: Application
    Filed: May 9, 2013
    Publication date: June 11, 2015
    Applicant: ECOLAB USA INC.
    Inventors: Qing Qing Yuan, Jian K. Shen, Quan Dong, Zhi Chen
  • Anionic lipophilic glycerol-based polymers for organic deposition control in papermaking processes
    Patent number: 8709209
    Abstract: The invention is directed to methods and compositions for reducing the deposition of pitches and stickies in a papermaking process. The method involves introducing an anionic glycerol-based polymer to the papermaking process. This anionic polymer prevents the pitches and stickies from depositing and agglomerating in papermaking processes.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: April 29, 2014
    Assignee: Nalco Company
    Inventors: Xiaojin Harry Li, Paul Richardson, Qing Qing Yuan, Qun Dong
  • ANIONIC LIPOPHILIC GLYCEROL-BASED POLYMERS FOR ORGANIC DEPOSITION CONTROL IN PAPERMAKING PROCESSES
    Publication number: 20130340964
    Abstract: The invention is directed to methods and compositions for reducing the deposition of pitches and stickies in a papermaking process. The method involves introducing an anionic glycerol-based polymer to the papermaking process. This anionic polymer prevents the pitches and stickies from depositing and agglomerating in papermaking processes.
    Type: Application
    Filed: December 28, 2012
    Publication date: December 26, 2013
    Inventors: Xiaojin Harry Li, Paul Richardson, Qing Qing Yuan, Qun Dong