Patents by Inventor Aurélien DUVAL

Aurélien DUVAL 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).

  • System for the chemical decontamination of corrosive gases
    Patent number: 11839850
    Abstract: The use of a composition including at least one acido-basic neutralising agent for decontaminating an atmosphere contaminated by a corrosive gas, the acido-basic neutralising agent having at least 2 pKa's and being characterised by: pKa 1?pKa 2, pKa 1>2, pKa 2<12, 4<½ (pKa 1+pKa 2)<10 pKa 1, representing the smallest of the basic pKa's and pKa 2 representing the largest of the acidic pKa's. Also, a method for decontaminating an atmosphere contaminated by a corrosive gas comprising the spraying of the neutralising agent, and to a decontamination device.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: December 12, 2023
    Assignee: PREVOR INTERNATIONAL
    Inventors: Aurélien Duval, Joel Blomet, Marie Claude Meyer
  • SYSTEM FOR THE CHEMICAL DECONTAMINATION OF CORROSIVE GASES
    Publication number: 20230364556
    Abstract: The use of a composition including at least one acido-basic neutralising agent for decontaminating an atmosphere contaminated by a corrosive gas, the acido-basic neutralising agent having at least 2 pKa's and being characterised by: pKa 1?pKa 2, pKa 1>2, pKa 2<12, 4<½ (pKa 1+pKa 2)<10 pKa 1, representing the smallest of the basic pKa's and pKa 2 representing the largest of the acidic pKa's. Also, a method for decontaminating an atmosphere contaminated by a corrosive gas comprising the spraying of the neutralising agent, and to a decontamination device.
    Type: Application
    Filed: July 24, 2023
    Publication date: November 16, 2023
    Applicant: PREVOR INTERNATIONAL
    Inventors: Aurélien DUVAL, Joel BLOMET, Marie Claude MEYER
  • SYSTEM FOR THE CHEMICAL DECONTAMINATION OF CORROSIVE GASES
    Publication number: 20230043563
    Abstract: The use of a composition including at least one acido-basic neutralising agent for decontaminating an atmosphere contaminated by a corrosive gas, the acido-basic neutralising agent having at least 2 pKa's and being characterised by: pKa 1?pKa 2, pKa 1>2, pKa 2<12, 4<½ (pKa 1+pKa 2)<10 pKa 1, representing the smallest of the basic pKa's and pKa 2 representing the largest of the acidic pKa's. Also, a method for decontaminating an atmosphere contaminated by a corrosive gas comprising the spraying of the neutralising agent, and to a decontamination device.
    Type: Application
    Filed: January 8, 2021
    Publication date: February 9, 2023
    Applicant: PREVOR INTERNATIONAL
    Inventors: Aurélien DUVAL, Joel BLOMET, Marie Claude MEYER
  • Emulsion comprising fatty acid ester/surfactant mixture for cleaning spilled paint, varnish, dye and/or surface coating
    Patent number: 11542400
    Abstract: Disclosed is a liquid mixture (preferably an oil-in-water emulsion) for cleaning spilled paint, varnish, dye and/or surface coating, and a cleaning method comprising a step of applying said mixture to a fresh stain left by paint, varnish, surface coating and/or dye.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: January 3, 2023
    Assignee: PREVOR INTERNATIONAL
    Inventors: Aurélien Duval, Karine Padois, Joël Blomet
  • COMPOSITION FOR REMOVING CHEMICAL RESIDUES AND USES THEREOF
    Publication number: 20220186154
    Abstract: A decontamination composition with at least one primary neutralizing agent and at least one secondary neutralizing agent, for the removal of chemical residues, to a method for employing the composition, and the use of the composition for removing residues on materials, machines, and equipment soiled with chemicals of any type, such as a corrosive product or a chemical containing fluoride ions.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 16, 2022
    Applicant: PREVOR INTERNATIONAL
    Inventors: Aurélien DUVAL, Joël BLOMET
  • Solid decontamination composition
    Patent number: 11040328
    Abstract: The invention relates to a solid composition which comprises at least one amorphous silica gel, at least one cellulosic agent, at least one binder, and optionally at least one neutralizing agent, and is characterized in that the solid composition has a grain size of 100 ?m to 2 mm.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: June 22, 2021
    Assignee: PREVOR INTERNATIONAL
    Inventors: Joël Blomet, Marie-Claude Meyer, Aurélien Duval
  • LIQUID MIXTURE FOR CLEANING SPILLED PAINT, VARNISH, DYE AND/OR SURFACE COATING
    Publication number: 20200010700
    Abstract: Disclosed is a liquid mixture (preferably an oil-in-water emulsion) for cleaning spilled paint, varnish, dye and/or surface coating, and a cleaning method comprising a step of applying said mixture to a fresh stain left by paint, varnish, surface coating and/or dye.
    Type: Application
    Filed: March 14, 2018
    Publication date: January 9, 2020
    Inventors: Aurélien DUVAL, Karine PADOIS, Joël BLOMET