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).
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Publication number: 20210252184Abstract: 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: ApplicationFiled: May 3, 2021Publication date: August 19, 2021Inventors: Paul JOLLEZ, Isabelle BOLDUC, Stéphane CHEVIGNY, Olivier SIGOUIN
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Patent number: 11013823Abstract: 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: GrantFiled: September 1, 2016Date of Patent: May 25, 2021Assignee: 7905122 CANADA INC.Inventors: Paul Jollez, Isabelle Bolduc, Stéphane Chevigny, Olivier Sigouin
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Publication number: 20190117823Abstract: 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: ApplicationFiled: September 1, 2016Publication date: April 25, 2019Inventors: Paul JOLLEZ, Isabelle BOLDUC, Stéphane CHEVIGNY, Olivier SIGOUIN
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Publication number: 20180199535Abstract: A litter box kit is provided.Type: ApplicationFiled: July 14, 2016Publication date: July 19, 2018Applicant: 9360-3561 Québec Inc.Inventors: Stéphane CHEVIGNY, Shirley GOUGH, Francis ROBERT
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Patent number: 8563466Abstract: 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: GrantFiled: February 13, 2012Date of Patent: October 22, 2013Assignee: Archer Daniels Midland CompanyInventors: Stephane Chevigny, Shuojia Dong, Anne-Claude Couffin-Hoarau, Isabelle Bolduc, Mohammed Berrada, Claude Thibodeau
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Patent number: 8486854Abstract: 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: GrantFiled: September 29, 2004Date of Patent: July 16, 2013Assignee: Archer Daniels Midland CompanyInventors: Mohammed Berrada, Stéphane Chevigny, Claude Thibodeau
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Publication number: 20120142525Abstract: 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: ApplicationFiled: February 13, 2012Publication date: June 7, 2012Applicant: ARCHER DANIELS MIDLAND COMPANYInventors: Stéphane Chevigny, Shuojia Dong, Anne-Claude Couffin-Hoarau, Isabelle Bolduc, Mohammed Berrada, Claude Thibodeau
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Patent number: 8114809Abstract: 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: GrantFiled: January 26, 2006Date of Patent: February 14, 2012Assignee: Archer Daniels Midland CompanyInventors: Stéphane Chevigny, Shuojia Dong, Anne-Claude Couffin-Hoarau, Isabelle Bolduc, Mohammed Berrada, Claude Thibodeau
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Publication number: 20080261807Abstract: 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: ApplicationFiled: January 26, 2006Publication date: October 23, 2008Applicant: Archer-Daniels-Midland CompanyInventors: Stephane Chevigny, Shuojia Dong, Anne-Claude Couffin-Hoarau, Isabelle Bolduc, Mohammed Berrada, Claude Thibodeau
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Publication number: 20080194402Abstract: Disclosed is a process for reducing the particle size of glass-like polysaccharides. The process efficiently reduces the particle size of glass-like polysaccharides selected from the group consisting of glass-like polysaccharides having a moisture content from 0% to about 13% and glassy state glass-like polysaccharides. The process comprises the use of a roller mill having at least three pairs of successive rollers.Type: ApplicationFiled: January 13, 2006Publication date: August 14, 2008Applicant: ARCHER-DANIELS-MIDLAND COMPANYInventor: Stephane Chevigny
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Publication number: 20050214541Abstract: 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: ApplicationFiled: September 29, 2004Publication date: September 29, 2005Applicant: Le Groupe Lysac Inc.Inventors: Mohammed Berrada, Stephane Chevigny, Claude Thibodeau
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Patent number: 6713460Abstract: 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: GrantFiled: April 3, 2002Date of Patent: March 30, 2004Assignee: Groupe Lysac Inc.Inventors: Serge Huppé, Marie-Elise Maheux, Stéphane Chevigny, Francois Quirion
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Publication number: 20020156048Abstract: 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:Type: ApplicationFiled: April 3, 2002Publication date: October 24, 2002Applicant: Groupe Lysac Inc./Lysac Group Inc.Inventors: Serge Huppe, Marie-Elise Maheux, Stephane Chevigny, Francois Quirion
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Patent number: 6444653Abstract: 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: GrantFiled: May 11, 2000Date of Patent: September 3, 2002Assignee: Groupe Lysac Inc.Inventors: Serge Huppé, Marie-Elise Maheux, Stéphane Chevigny, François Quirion