Patents by Inventor Zhengbing Cao

Zhengbing Cao 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).

  • Patent number: 10721907
    Abstract: The present invention includes multifunctional compositions, methods and binding systems to provide disinfecting and deodorizing coatings for hard and soft surfaces, inorganic and organic solid surfaces and particulate media and other related substrates, including human and animal skin and skin lesions; to provide neutralizing functions for malodors generated by both human, animal and industrial fluids and solid wastes; and to provide neutralizing and degrading functions for nuisance and noxious chemicals. The present invention provides compositions and methods for producing disinfecting, oxidizing and enzyme-inhibiting fluids enabling preparation of durable, stable biocidal and deodorizing coatings and media which can be widely used for biological agent control, prevention and elimination of odors, and degradation of noxious agents susceptible to chemical oxidation, and which take forms that are inoffensive to users and offer high convenience.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: July 28, 2020
    Assignee: OXISCIENCE, LLC
    Inventors: Zhengbing Cao, Xinbo Sun, Simon Johnston, Jeffrey F. Williams
  • Patent number: 10131731
    Abstract: The subject invention discloses curable polymeric N-halamine precursors which are useful for forming an antimicrobial surface coating on an object or article of manufacture. The present invention more specifically reveals a cross-linkable, water soluble polymer which is particularly useful for coating substrates and which can be activated to provide such substrates with antimicrobial and/or odor reducing characteristics, said cross-linkable polymer being comprised of amine, amide, or imide group containing repeat units and epoxide or methylol group containing repeat units, wherein the ratio of amine, amide or imide group containing repeat units to epoxide or methylol group containing repeat units is at least 2:1.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: November 20, 2018
    Assignee: OxiScience LLC
    Inventors: Zhengbing Cao, Xinbo Sun, Simon Johnston
  • Publication number: 20180325076
    Abstract: The present invention includes multifunctional compositions, methods and binding systems to provide disinfecting and deodorizing coatings for hard and soft surfaces, inorganic and organic solid surfaces and particulate media and other related substrates, including human and animal skin and skin lesions; to provide neutralizing functions for malodors generated by both human, animal and industrial fluids and solid wastes; and to provide neutralizing and degrading functions for nuisance and noxious chemicals. The present invention provides compositions and methods for producing disinfecting, oxidizing and enzyme-inhibiting fluids enabling preparation of durable, stable biocidal and deodorizing coatings and media which can be widely used for biological agent control, prevention and elimination of odors, and degradation of noxious agents susceptible to chemical oxidation, and which take forms that are inoffensive to users and offer high convenience.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Applicant: OXISCIENCE, LLC
    Inventors: Zhengbing Cao, Xinbo Sun, Simon Johnston, Jeffrey F. Williams
  • Patent number: 10028482
    Abstract: The present invention includes multifunctional compositions, methods and binding systems to provide disinfecting and deodorizing coatings for hard and soft surfaces, inorganic and organic solid surfaces and particulate media and other related substrates, including human and animal skin and skin lesions; to provide neutralizing functions for malodors generated by both human, animal and industrial fluids and solid wastes; and to provide neutralizing and degrading functions for nuisance and noxious chemicals. The present invention provides compositions and methods for producing disinfecting, oxidizing and enzyme-inhibiting fluids enabling preparation of durable, stable biocidal and deodorizing coatings and media which can be widely used for biological agent control, prevention and elimination of odors, and degradation of noxious agents susceptible to chemical oxidation, and which take forms that are inoffensive to users and offer high convenience.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: July 24, 2018
    Assignee: OxiScience LLC
    Inventors: Zhengbing Cao, Xinbo Sun, Simon Johnston, Jeffrey F. Williams
  • Patent number: 9700040
    Abstract: The invention relates to polymeric systems for stabilizing, storing and delivering hypohalide salts. One system consists of material coated with two layers: one prepared from polyethylene glycol epoxide and melamine solution and second prepared from inorganic hypohalide salt solution. The material can be fabric, cotton, bamboo, cellulosic materials, blend of cellulosic and synthetic fibers. Antimicrobial materials comprising this system are also described. Another system consists of material containing pre-formed spaces coated with water-polyethylene glycol solution of hypohalide salt and encapsulated by film forming polymer. Hypohalide salts within both systems are in some cases storage stable for at least three months.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: July 11, 2017
    Assignee: The University of South Dakota
    Inventors: Yuyu Sun, Zhengbing Cao, Simon Johnston
  • Publication number: 20160058008
    Abstract: The present invention includes multifunctional compositions, methods and binding systems to provide disinfecting and deodorizing coatings for hard and soft surfaces, inorganic and organic solid surfaces and particulate media and other related substrates, including human and animal skin and skin lesions; to provide neutralizing functions for malodors generated by both human, animal and industrial fluids and solid wastes; and to provide neutralizing and degrading functions for nuisance and noxious chemicals. The present invention provides compositions and methods for producing disinfecting, oxidizing and enzyme-inhibiting fluids enabling preparation of durable, stable biocidal and deodorizing coatings and media which can be widely used for biological agent control, prevention and elimination of odors, and degradation of noxious agents susceptible to chemical oxidation, and which take forms that are inoffensive to users and offer high convenience.
    Type: Application
    Filed: August 28, 2015
    Publication date: March 3, 2016
    Inventors: Zhengbing Cao, Xinbo Sun, Simon Johnston, Jeffrey F. Williams
  • Publication number: 20150315389
    Abstract: The subject invention discloses curable polymeric N-halamine precursors which are useful for forming an antimicrobial surface coating on an object or article of manufacture. The present invention more specifically reveals a cross-linkable, water soluble polymer which is particularly useful for coating substrates and which can be activated to provide such substrates with antimicrobial and/or odor reducing characteristics, said cross-linkable polymer being comprised of amine, amide, or imide group containing repeat units and epoxide or methylol group containing repeat units, wherein the ratio of amine, amide or imide group containing repeat units to epoxide or methylol group containing repeat units is at least 2:1.
    Type: Application
    Filed: May 5, 2015
    Publication date: November 5, 2015
    Inventors: Zhengbing Cao, Xinbo Sun, Simon Johnston
  • Patent number: 8992223
    Abstract: Polymers and copolymers including a functional polymer component may be used as conventional denture materials. Antifungal materials may be releasably bound to the functional polymer component such that the antifungal materials may be slowly eluted over an extended period of time to combat a fungal infection.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: March 31, 2015
    Assignee: The University of South Dakota
    Inventors: Yuyu Sun, Zhengbing Cao, Xinbo Sun
  • Publication number: 20130115259
    Abstract: The invention relates to polymeric systems for stabilizing, storing and delivering hypohalide salts. One system consists of material coated with two layers: one prepared from polyethylene glycol epoxide and melamine solution and second prepared from inorganic hypohalide salt solution. The material can be fabric, cotton, bamboo, cellulosic materials, blend of cellulosic and synthetic fibres. Antimicrobial materials comprising this system are also described. Another system consists of material containing pre-formed spaces coated with water-polyethylene glycol solution of hypohalide salt and encapsulated by film forming polymer. Hypohalide salts within both systems are in some cases storage stable for at least three months.
    Type: Application
    Filed: January 20, 2011
    Publication date: May 9, 2013
    Applicant: THE UNIVERSITY OF SOUTH DAKOTA
    Inventors: Yuyu Sun, Zhengbing Cao, Simon Johnston
  • Publication number: 20090324536
    Abstract: Biocidal compounds have been synthesized and tested. These biocidal compounds have broad-spectrum efficacy and their biocidal properties are easily renewable. Illustrative examples of these biocidal compounds include N-halamine monomers and polymers and silver sulfadiazine polymers. These compounds can be used to add biocidal function to various materials and articles.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 31, 2009
    Applicant: THE UNIVERSITY OF SOUTH DAKOTA
    Inventors: Yuyu Sun, Zhengbing Cao