Patents by Inventor Stéphane Chevigny

Stéphane Chevigny 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: 20260048169
    Abstract: A chromogenic absorbent material for detecting a detectable substance in a water-containing medium, such as animal urine, is provided. The detectable substance may be indicative of a disease or condition, and the water-containing medium may be an excretion, blood, plasma, an aqueous solution or a solid impregnated with an aqueous solution. The chromogenic absorbent material may include a trigger agent, a chromogenic indicator convertible into a chromogenically active substance in the presence of the trigger agent and the detectable substance, and an absorptive material which is porous, for absorbing the water-containing medium. The absorptive material may include a water-absorbing polysaccharide providing absorptive properties to the chromogenic absorbent material. The trigger agent, the chromogenic indicator and the detectable substance are preferably unreactive to the absorptive material.
    Type: Application
    Filed: October 24, 2025
    Publication date: February 19, 2026
    Inventors: Paul Jollez, Isabelle Bolduc, Stéphane Chevigny, Olivier Sigouin
  • Patent number: 12521466
    Abstract: A chromogenic absorbent material for detecting a detectable substance in a water-containing medium, such as animal urine, is provided. The detectable substance may be indicative of a disease or condition, and the water-containing medium may be an excretion, blood, plasma, an aqueous solution or a solid impregnated with an aqueous solution. The chromogenic absorbent material may include a trigger agent, a chromogenic indicator convertible into a chromogenically active substance in the presence of the trigger agent and the detectable substance, and an absorptive material which is porous, for absorbing the water-containing medium. The absorptive material may include a water-absorbing polysaccharide providing absorptive properties to the chromogenic absorbent material. The trigger agent, the chromogenic indicator and the detectable substance are preferably unreactive to the absorptive material.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: January 13, 2026
    Assignee: 7905122 CANADA INC.
    Inventors: Paul Jollez, Isabelle Bolduc, Stéphane Chevigny, Olivier Sigouin
  • Publication number: 20210252184
    Abstract: A chromogenic absorbent material for detecting a detectable substance in a water-containing medium, such as animal urine, is provided. The detectable substance may be indicative of a disease or condition, and the water-containing medium may be an excretion, blood, plasma, an aqueous solution or a solid impregnated with an aqueous solution. The chromogenic absorbent material may include a trigger agent, a chromogenic indicator convertible into a chromogenically active substance in the presence of the trigger agent and the detectable substance, and an absorptive material which is porous, for absorbing the water-containing medium. The absorptive material may include a water-absorbing polysaccharide providing absorptive properties to the chromogenic absorbent material. The trigger agent, the chromogenic indicator and the detectable substance are preferably unreactive to the absorptive material.
    Type: Application
    Filed: May 3, 2021
    Publication date: August 19, 2021
    Inventors: Paul JOLLEZ, Isabelle BOLDUC, Stéphane CHEVIGNY, Olivier SIGOUIN
  • Patent number: 11013823
    Abstract: A chromogenic absorbent material for detecting a detectable substance in a water-containing medium, such as animal urine, is provided. The detectable substance may be indicative of a disease or condition, and the water-containing medium may be an excretion, blood, plasma, an aqueous solution or a solid impregnated with an aqueous solution. The chromogenic absorbent material may include a trigger agent, a chromogenic indicator convertible into a chromogenically active substance in the presence of the trigger agent and the detectable substance, and an absorptive material which is porous, for absorbing the water-containing medium. The absorptive material may include a water-absorbing polysaccharide providing absorptive properties to the chromogenic absorbent material. The trigger agent, the chromogenic indicator and the detectable substance are preferably unreactive to the absorptive material.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: May 25, 2021
    Assignee: 7905122 CANADA INC.
    Inventors: Paul Jollez, Isabelle Bolduc, Stéphane Chevigny, Olivier Sigouin
  • Publication number: 20190117823
    Abstract: A chromogenic absorbent material for detecting a detectable substance in a water-containing medium, such as animal urine, is provided. The detectable substance may be indicative of a disease or condition, and the water-containing medium may be an excretion, blood, plasma, an aqueous solution or a solid impregnated with an aqueous solution. The chromogenic absorbent material may include a trigger agent, a chromogenic indicator convertible into a chromogenically active substance in the presence of the trigger agent and the detectable substance, and an absorptive material which is porous, for absorbing the water-containing medium. The absorptive material may include a water-absorbing polysaccharide providing absorptive properties to the chromogenic absorbent material. The trigger agent, the chromogenic indicator and the detectable substance are preferably unreactive to the absorptive material.
    Type: Application
    Filed: September 1, 2016
    Publication date: April 25, 2019
    Inventors: Paul JOLLEZ, Isabelle BOLDUC, Stéphane CHEVIGNY, Olivier SIGOUIN
  • Publication number: 20180199535
    Abstract: A litter box kit is provided.
    Type: Application
    Filed: July 14, 2016
    Publication date: July 19, 2018
    Applicant: 9360-3561 Québec Inc.
    Inventors: Stéphane CHEVIGNY, Shirley GOUGH, Francis ROBERT
  • Patent number: 8486854
    Abstract: The present invention relates to an absorbent or a superabsorbent nanocomposite material comprising a polysaccharide and a phyllosilicate. The polysaccharide component can be a biodegradable polysaccharide that is a self-entangled glass-like polysaccharide or a crosslinked polysaccharide. The phyllosilicate component can be an exfoliation or a semi-exfoliation clay.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: July 16, 2013
    Assignee: Archer Daniels Midland Company
    Inventors: Mohammed Berrada, Stéphane Chevigny, Claude Thibodeau
  • Publication number: 20120142525
    Abstract: The present invention relates to discrete particulate composite additives for superabsorbent polymers and includes a method of making same. The discrete particulate composite additives generally comprise a polysaccharide and an inert inorganic component. Advantageously, these discrete particulate composite additives functionally improve superabsorbent performance. They are suitable for a number of applications, including the use and manufacture of hygiene products.
    Type: Application
    Filed: February 13, 2012
    Publication date: June 7, 2012
    Applicant: ARCHER DANIELS MIDLAND COMPANY
    Inventors: Stéphane Chevigny, Shuojia Dong, Anne-Claude Couffin-Hoarau, Isabelle Bolduc, Mohammed Berrada, Claude Thibodeau
  • Patent number: 8114809
    Abstract: The present invention relates to discrete particulate composite additives for superabsorbent polymers and includes a method of making same. The discrete particulate composite additives generally comprise a polysaccharide and an inert inorganic component. Advantageously, these discrete particulate composite additives functionally improve superabsorbent performance. They are suitable for a number of applications, including the use and manufacture of hygiene products.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: February 14, 2012
    Assignee: Archer Daniels Midland Company
    Inventors: Stéphane Chevigny, Shuojia Dong, Anne-Claude Couffin-Hoarau, Isabelle Bolduc, Mohammed Berrada, Claude Thibodeau
  • Patent number: 6713460
    Abstract: A particulate absorbent, for the absorption of liquids, comprising particles selected from the group consisting of particles of glass-like polysaccharides and of particles of glass-like polysaccharides occluding, in their internal structure, at least one surfactant, said particles: having a size of up to 620 &mgr;m; being at least 70% of a glass-like type structure; and being: 30 to 45% of a size comprised between 620 and 420 &mgr;m; 35 to 55% of a size comprised between 420 and 210 &mgr;m; and 5 to 25% of a size up to 210 &mgr;m. These particulate absorbent is non-hygroscopic, hypoallergenic and biodegradable and useful particularly in biodegradable diapers.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: March 30, 2004
    Assignee: Groupe Lysac Inc.
    Inventors: Serge Huppé, Marie-Elise Maheux, Stéphane Chevigny, Francois Quirion
  • Patent number: 6444653
    Abstract: A particulate absorbent, for the absorption of liquids, comprising particles selected from the group consisting of particles of glass-like polysaccharides and of particles of glass-like polysaccharides occluding, In their internal structure, at least one surfactant, said particles: having a size of up to 620 &mgr;m; being at least 70% of a glass-like type structure; and being: 30 to 45% of a size comprised between 620 and 420 &mgr;m; 35 to 55% of a size comprised between 420 and 210 &mgr;m; and 5 to 25% of a size up to 210 &mgr;m. These particulate absorbent is non-hygroscopic, hypoallergenic and biodegradable and useful particularly in biodegradable diapers.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: September 3, 2002
    Assignee: Groupe Lysac Inc.
    Inventors: Serge Huppé, Marie-Elise Maheux, Stéphane Chevigny, François Quirion