Patents by Inventor Marie-Claude Meyer

Marie-Claude Meyer 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: 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
  • 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
  • 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
  • Patent number: 11197874
    Abstract: A method of preventing contact allergies includes using at least one amphoteric chelating agent which includes a complex based on aluminium and on ethylenediaminetetraacetic acid or the trisodium salt thereof, having the general formula [Al(Y)Bn]c?Dc with B being OH?, BO2? or H+, Y being a tetracarboxylate which can be protonated four times to form ethylenediaminetetraacetic acid, n being an integer equal to 0, 1, 2 or 3, D being a counterion, preferably Na+, c being an integer equal to 0, 1, 2 or 3 and c? being a relative number having the same absolute value as c. A device, a part of which includes the amphoteric chelating agent, is also described.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: December 14, 2021
    Assignee: PREVOR INTERNATIONAL
    Inventors: Joel Blomet, Laurence Mathieu, Marie-Claude Meyer
  • Publication number: 20210275553
    Abstract: The use of an emulsion for protecting the skin against aggressive chemical agents, wherein this emulsion includes at least one amphoteric chelating agent which includes a complex based on aluminium and on ethylenediaminetetraacetic acid or the trisodium salt thereof, having the general formula [Al(Y)Bn]C?Dc with B being OH?, BO2? or H+, Y being a tetracarboxylate which can be protonated four times to form ethylenediaminetetraacetic acid, n being an integer equal to 0, 1, 2 or 3, D being a counterion, preferably Na+, c being an integer equal to 0, 1, 2 or 3 and c? being a relative number having the same absolute value as c.
    Type: Application
    Filed: February 10, 2021
    Publication date: September 9, 2021
    Applicant: PREVOR INTERNATIONAL
    Inventors: Joel BLOMET, Laurence MATHIEU, Marie-Claude MEYER
  • 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
  • Patent number: 10953024
    Abstract: The use of an emulsion for protecting the skin against aggressive chemical agents, wherein this emulsion includes at least one amphoteric chelating agent which includes a complex based on aluminium and on ethylenediaminetetraacetic acid or the trisodium salt thereof, having the general formula [Al(Y)Bn]c?Dc with B being OH?, BO2? or H+, Y being a tetracarboxylate which can be protonated four times to form ethylenediaminetetraacetic acid, n being an integer equal to 0, 1, 2 or 3, D being a counterion, preferably Na+, c being an integer equal to 0, 1, 2 or 3 and c? being a relative number having the same absolute value as c.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: March 23, 2021
    Assignee: PREVOR INTERNATIONAL
    Inventors: Joel Blomet, Laurence Mathieu, Marie-Claude Meyer
  • Patent number: 10316230
    Abstract: A composition includes: (a) at least one neutralizing agent; (b) at least one absorbent agent; and (c) at least one texturing mixture in the form of a mixture including silica gel and an amphoteric texturing agent of which the two pKa (pKa1 and pKa2, pKa1 being less than pKa2) fulfill the following conditions: pKa1>2, pKa2<12, and <(pKa1+pKa2)/2<10. The composition is useful for removal of pollution.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: June 11, 2019
    Assignee: PREVOR INTERNATIONAL
    Inventors: Mathilde Neel, Laurence Mathieu, Joel Blomet, Marie-Claude Meyer
  • Publication number: 20190134600
    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: Application
    Filed: April 21, 2017
    Publication date: May 9, 2019
    Inventors: Joël BLOMET, Marie-Claude MEYER
  • Patent number: 9938441
    Abstract: A pollution removal composition includes: (a) at least one silica gel; and (b) at least one wood-derived absorbent agent, characterized in that the silica gel has a grain-size distribution of between 60 and 500 ym and a density of between 150 and 400 kg/m3. A pollution removal method using the composition is also described.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: April 10, 2018
    Assignee: PREVOR INTERNATIONAL
    Inventors: Mathilde Neel, Laurence Mathieu, Joel Blomet, Marie-Claude Meyer
  • Publication number: 20150315445
    Abstract: A composition includes: (a) at least one neutralizing agent; (b) at least one absorbent agent; and (c) at least one texturing mixture in the form of a mixture including silica gel and an amphoteric texturing agent of which the two pKa (pKa1 and pKa2, pKa1 being less than pKa2) fulfill the following conditions: pKa1>2, pKa2<12, and <(pKa1+pKa2)/2<10. The composition is useful for removal of pollution.
    Type: Application
    Filed: November 28, 2013
    Publication date: November 5, 2015
    Applicant: PREVOR INTERNATIONAL
    Inventors: Mathilde NEEL, Laurence MATHIEU, Joel BLOMET, Marie-Claude MEYER
  • Publication number: 20150299546
    Abstract: A pollution removal composition includes: (a) at least one silica gel; and (b) at least one wood-derived absorbent agent, characterized in that the silica gel has a grain-size distribution of between 60 and 500 ym and a density of between 150 and 400 kg/m 3. A pollution removal method using the composition is also described.
    Type: Application
    Filed: November 28, 2013
    Publication date: October 22, 2015
    Applicant: PREVOR INTERNATIONAL
    Inventors: Mathilde NEEL, Laurence MATHIEU, Joel BLOMET, Marie-Claude MEYER
  • Publication number: 20150202217
    Abstract: A method of preventing contact allergies includes using at least one amphoteric chelating agent which includes a complex based on aluminium and on ethylenediaminetetraacetic acid or the trisodium salt thereof, having the general formula [Al(Y)Bn]c?Dc with B being OH?, BO2? or H+, Y being a tetracarboxylate which can be protonated four times to form ethylenediaminetetraacetic acid, n being an integer equal to 0, 1, 2 or 3, D being a counterion, preferably Na+, c being an integer equal to 0, 1, 2 or 3 and c? being a relative number having the same absolute value as c. A device, a part of which includes the amphoteric chelating agent, is also described.
    Type: Application
    Filed: July 17, 2013
    Publication date: July 23, 2015
    Applicant: PREVOR INTERNATIONAL
    Inventors: Joel Blomet, Laurence Mathieu, Marie-Claude Meyer
  • Publication number: 20150190357
    Abstract: The use of an emulsion for protecting the skin against aggressive chemical agents, wherein this emulsion includes at least one amphoteric chelating agent which includes a complex based on aluminium and on ethylenediaminetetraacetic acid or the trisodium salt thereof, having the general formula [Al(Y) Bn]c?Dc with B being OH?, BO2? or H+, Y being a tetracarboxylate which can be protonated four times to form ethylenediaminetetraacetic acid, n being an integer equal to 0, 1, 2 or 3, D being a counterion, preferably Na+, c being an integer equal to 0, 1, 2 or 3 and c?being a relative number having the same absolute value as c.
    Type: Application
    Filed: July 17, 2013
    Publication date: July 9, 2015
    Applicant: PREVOR INTERNATIONAL
    Inventors: Joel Blomet, Laurence Mathieu, Marie-Claude Meyer
  • Patent number: 7758771
    Abstract: The invention relates to a product for transformation of a toxic corrosive or environmentally-noxious product into a non-corrosive or non-noxious residue, comprising at least one amphoteric agent, at least one lipophilic absorbent, at least one hydrophilic absorbent and at least one binary colored indicator, selected from the group of the following mixtures: Nile blue/alizarin red, alizarin yellow/alizarin red, thymolphthalein/methyl red, phenolphthalein/methyl red and tropaeolin OO/thymol blue and optionally an additive selected from the group comprising charge agents, granulation agents, anti-static agents and mixtures thereof.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: July 20, 2010
    Inventors: Marie-Claude Meyer, Laurence Mathieu, Celine Godard
  • Publication number: 20090224202
    Abstract: The invention relates to a product for transformation of a toxic corrosive or environmentally-noxious product into a non-corrosive or non-noxious residue, comprising at least one amphoteric agent, at least one lipophilic absorbent, at least one hydrophilic absorbent and at least one binary coloured indicator, selected from the group of the following mixtures: Nile blue/alizarin red, alizarin yellow/alizarin red, thymolphthalein/methyl red, phenolphthalein/methyl red and tropaeolin OO/thymol blue and optionally an additive selected from the group comprising charge agents, granulation agents, anti-static agents and mixtures thereof.
    Type: Application
    Filed: October 20, 2005
    Publication date: September 10, 2009
    Inventors: Marie-Claude Meyer, Laurence Mathieu, Celine Godard
  • Patent number: 6982239
    Abstract: The invention relates to a product capable of transforming a toxic, corrosive or environmentally harmful liquid product into a harmless or non-aggressive residue comprising: at least one amphoteric selected in such a way that: the pH of the residue obtained is within the range of from 5 to 10, preferably from 5.5 to 9.7, the lowest of the acidic pK values of the amphoteric is within the range of from 5 to 10, preferably from 5.5 to 9.7, and the highest of the basic pK values of the amphoteric is within the range of from 5 to 10 and preferably from 5 to 8, and the highest of the basic pK values of the amphoteric is lower than the lowest of the acidic pK values, at least one lipophilic absorbent and at least one hydrophilic absorbent.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: January 3, 2006
    Inventors: Marie-Claude Meyer, Laurence Mathieu, Joël Blomet
  • Publication number: 20020128361
    Abstract: The invention relates to a product capable of transforming a toxic, corrosive or environmentally harmful liquid product into a harmless or non-aggressive residue comprising:
    Type: Application
    Filed: March 6, 2002
    Publication date: September 12, 2002
    Applicant: Marie-Claude MEYER
    Inventors: Marie-Claude Meyer, Laurence Mathieu, Joel Blomet
  • Patent number: 6380130
    Abstract: The invention relates to a product capable of transforming a toxic, corrosive or environmentally harmful liquid product into a harmless or non-aggressive residue comprising: at least one amphoteric selected in such a way that: the pH of the residue obtained is within the range of from 5 to 10, preferably from 5.5 to 9.7, the lowest of the acidic pK values of the amphoteric is within the range of from 5 to 10, preferably from 5.5 to 9.7, and the highest of the basic pK values of the amphoteric is within the range of from 5 to 10 and preferably from 5 to 8, and the highest of the basic pK values of the amphoteric is lower than the lowest of the acidic pK values, at least one lipophilic absorbent and at least one hydrophilic absorbent.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: April 30, 2002
    Inventors: Marie-Claude Meyer, Laurence Mathieu, Joël Blomet