Patents by Inventor Tien Canh Le

Tien Canh Le 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: 20240009313
    Abstract: The present document describes a process for the preparation of a low functionalization polysaccharide having carboxyl groups, comprising a) swelling of a polysaccharide granule in boiling water or a water/polyol mixture, to obtain a swollen polysaccharide; b) partial gelatinization of said swollen polysaccharide in an alkaline solvent mixture of water and alcohol and/or polyol, to obtain a partially gelatinized polysaccharide; and c) partial functionalization of said partially gelatinized polysaccharide with a functionalizing agent, to obtain the low functionalization polysaccharide.
    Type: Application
    Filed: September 21, 2023
    Publication date: January 11, 2024
    Inventor: Tien Canh LE
  • Patent number: 11793879
    Abstract: The present document describes a process for the preparation of a low functionalization polysaccharide having carboxyl groups, comprising a) swelling of a polysaccharide granule in boiling water or a water/polyol mixture, to obtain a swollen polysaccharide; b) partial gelatinization of said swollen polysaccharide in an alkaline solvent mixture of water and alcohol and/or polyol, to obtain a partially gelatinized polysaccharide; and c) partial functionalization of said partially gelatinized polysaccharide with a functionalizing agent, to obtain the low functionalization polysaccharide.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: October 24, 2023
    Assignee: MATRIPHARM INTERNATIONAL INC.
    Inventor: Tien Canh Le
  • Publication number: 20230270683
    Abstract: The present document describes a monolithic tablet dosage form for delivery of an active ingredient at two different release rates comprising a carboxyl polymer complexed with a multivalent cation and a disintegrating agent for a first initial fast release of the active ingredient, and a modulating agent for a second sustained release of the active ingredient. Also described are processes for preparing the carboxyl polymer complexed with a multivalent cation, and carboxyl polymer made from the process.
    Type: Application
    Filed: April 14, 2023
    Publication date: August 31, 2023
    Inventors: Tien Canh LE, Mircea-Alexandru MATEESCU
  • Publication number: 20230263768
    Abstract: The present document describes methods of treating or preventing a viral infection in a subject in need thereof comprising administering a therapeutically effective amount of artesunate or pharmaceutically acceptable salts thereof, and stereoisomers thereof to said subject. More particularly, the present document describes methods of treating or preventing a viral infection in a subject in need thereof comprising administering a therapeutically effective amount of a delayed release dosage form comprising an artesunate or pharmaceutically acceptable salts thereof, in combination with a carbonate salt, an artesunate emulsion having a pH value of from about 7.5 to 8.0 and comprising an artesunate or pharmaceutically acceptable salts thereof, and stereoisomers thereof stabilized with an emulsifying polymer and a soluble polymers, or a combination thereof, to the subject.
    Type: Application
    Filed: June 23, 2021
    Publication date: August 24, 2023
    Inventors: Tien Canh LE, Dionissios BALTZIS
  • Publication number: 20230133037
    Abstract: The present document describes extended release gastro retentive dosage form comprising a carboxylated polysaccharide and cinnamaldehyde conjugate formed via an acetal, hemiacetal or cyclic hemiacetal formed between an aldehyde group of the cinnamaldehyde and a hydroxyl group of the carboxylated polysaccharide. The document also describes extended release gastro retentive dosage form comprising an artesunate emulsion having a pH value of from about 7.5 to 7.9 and comprising an artesunate or pharmaceutically acceptable salts thereof, and stereoisomers thereof stabilized with an emulsifying agent. The document also describes the use of the dosage forms for treatment of H. Pylori infection.
    Type: Application
    Filed: June 26, 2020
    Publication date: May 4, 2023
    Inventors: Tien Canh LE, Dionissios BALTZIS, Max ARELLA
  • Publication number: 20220111057
    Abstract: The present document describes a pharmaceutical excipient composition comprising a functionalized anionic polysaccharide having carboxyl groups complexed with an amino acid-divalent cation complex, monolithic solid dosage forms for dual rate release of an active pharmaceutical ingredient, comprising the pharmaceutical excipient composition and active pharmaceutical ingredients, as well as processes for preparing the pharmaceutical excipient composition.
    Type: Application
    Filed: December 24, 2021
    Publication date: April 14, 2022
    Inventor: Tien Canh LE
  • Publication number: 20210401756
    Abstract: The present document describes a monolithic tablet dosage form for delivery of an active ingredient at two different release rates comprising a carboxyl polymer complexed with a multivalent cation and a disintegrating agent for a first initial fast release of the active ingredient, and a modulating agent for a second sustained release of the active ingredient. Also described are processes for preparing the carboxyl polymer complexed with a multivalent cation, and carboxyl polymer made from the process.
    Type: Application
    Filed: September 10, 2021
    Publication date: December 30, 2021
    Inventors: Mircea-Alexandru MATEESCU, Tien Canh LE
  • Publication number: 20210379187
    Abstract: The present document describes a process for the preparation of a low functionalization polysaccharide having carboxyl groups, comprising a) swelling of a polysaccharide granule in boiling water or a water/polyol mixture, to obtain a swollen polysaccharide; b) partial gelatinization of said swollen polysaccharide in an alkaline solvent mixture of water and alcohol and/or polyol, to obtain a partially gelatinized polysaccharide; and c) partial functionalization of said partially gelatinized polysaccharide with a functionalizing agent, to obtain the low functionalization polysaccharide.
    Type: Application
    Filed: August 18, 2021
    Publication date: December 9, 2021
    Inventor: Tien Canh LE
  • Publication number: 20210244671
    Abstract: The present document describes a dosage form for delivery of an active ingredient comprising: a first carboxylated polymer having carboxyl groups, having a degree of substitution of at least 0.2, a molecular weight of at least 200 kDa, and at least 30% of said carboxyl groups being complexed with a divalent cation; alone or in a co-complex with at least one of a) a control release polymer chosen from an insoluble polymer or a polymer having a reduced water solubility at 30° C., and a soluble polymer; and b) a second carboxylated polymer having carboxyl groups complexed with a divalent cation. The document also describes processes of making a carboxylated polymer having carboxyl groups, having a degree of substitution of at least 0.2, a molecular weight of at least 200 kDa, and at least 30% of said carboxyl groups being complexed with a divalent cation, and an inclusion complex, a co-complex, or both comprising the same.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 12, 2021
    Inventors: Mircea-Alexandru MATEESCU, Tien Canh LE
  • Patent number: 10899776
    Abstract: The present document describes compounds resulting from the complexation of quaternary ammonium compounds with boric acid and/or its derivatives, and methods of making the same, and methods of using the same for the treatment of pathogenic infections.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: January 26, 2021
    Assignee: CANH FEED SOLUTIONS CORP.
    Inventors: Tien Canh Le, Giuliano Lafrenière Di Fruscia
  • Publication number: 20200108017
    Abstract: The present document describes a monolithic tablet dosage form for delivery of an active ingredient at two different release rates comprising a carboxyl polymer complexed with a multivalent cation and a disintegrating agent for a first initial fast release of the active ingredient, and a modulating agent for a second sustained release of the active ingredient. Also described are processes for preparing the carboxyl polymer complexed with a multivalent cation, and carboxyl polymer made from the process.
    Type: Application
    Filed: December 5, 2019
    Publication date: April 9, 2020
    Inventors: Tien Canh LE, Mircea-Alexandru MATEESCU
  • Publication number: 20200102332
    Abstract: The present document describes compounds resulting from the complexation of quaternary ammonium compounds with boric acid and/or its derivatives, and methods of making the same, and methods of using the same for the treatment of pathogenic infections.
    Type: Application
    Filed: May 13, 2019
    Publication date: April 2, 2020
    Inventors: TIEN CANH LE, Giuliano Lafrenière Di Fruscia
  • Publication number: 20200054565
    Abstract: The present document describes a dosage form for delivery of an active ingredient comprising: a first carboxylated polymer having carboxyl groups, having a degree of substitution of at least 0.2, a molecular weight of at least 200 kDa, and at least 30% of said carboxyl groups being complexed with a divalent cation; alone or in a co-complex with at least one of a) a control release polymer chosen from an insoluble polymer or a polymer having a reduced water solubility at 30° C., and a soluble polymer; and b) a second carboxylated polymer having carboxyl groups complexed with a divalent cation. The document also describes processes of making a carboxylated polymer having carboxyl groups, having a degree of substitution of at least 0.2, a molecular weight of at least 200 kDa, and at least 30% of said carboxyl groups being complexed with a divalent cation, and an inclusion complex, a co-complex, or both comprising the same.
    Type: Application
    Filed: October 23, 2019
    Publication date: February 20, 2020
    Inventors: Mircea-Alexandru Mateescu, Tien Canh Le
  • Patent number: 10344043
    Abstract: The present document describes compounds resulting from the complexation of quaternary ammonium compounds with boric acid and/or its derivatives, and methods of making the same, and methods of using the same for the treatment of pathogenic infections.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: July 9, 2019
    Inventors: Tien Canh Le, Giuliano Lafrenière Di Fruscia
  • Publication number: 20190070299
    Abstract: The present document describes a pharmaceutical excipient composition comprising a functionalized anionic polysaccharide having carboxyl groups complexed with an amino acid-divalent cation complex, monolithic solid dosage forms for dual rate release of an active pharmaceutical ingredient, comprising the pharmaceutical excipient composition and active pharmaceutical ingredients, as well as processes for preparing the pharmaceutical excipient composition.
    Type: Application
    Filed: February 23, 2017
    Publication date: March 7, 2019
    Inventor: Tien Canh LE
  • Publication number: 20190060466
    Abstract: The present document describes a process for the preparation of a low functionalization polysaccharide having carboxyl groups, comprising a) swelling of a polysaccharide granule in boiling water or a water/polyol mixture, to obtain a swollen polysaccharide; b) partial gelatinization of said swollen polysaccharide in an alkaline solvent mixture of water and alcohol and/or polyol, to obtain a partially gelatinized polysaccharide; and c) partial functionalization of said partially gelatinized polysaccharide with a functionalizing agent, to obtain the low functionalization polysaccharide.
    Type: Application
    Filed: February 23, 2017
    Publication date: February 28, 2019
    Inventor: Tien Canh LE
  • Publication number: 20180127439
    Abstract: The present document describes compounds resulting from the complexation of quaternary ammonium compounds with boric acid and/or its derivatives, and methods of making the same, and methods of using the same for the treatment of pathogenic infections.
    Type: Application
    Filed: April 14, 2016
    Publication date: May 10, 2018
    Inventors: Tien Canh LE, Giuliano LAFRENIÈRE DI FRUSCIA
  • Publication number: 20170296470
    Abstract: The present document describes a monolithic tablet dosage form for delivery of an active ingredient at two different release rates comprising a carboxyl polymer complexed with a multivalent cation and a disintegrating agent for a first initial fast release of the active ingredient, and a modulating agent for a second sustained release of the active ingredient. Also described are processes for preparing the carboxyl polymer complexed with a multivalent cation, and carboxyl polymer made from the process.
    Type: Application
    Filed: June 29, 2017
    Publication date: October 19, 2017
    Inventors: Tien Canh LE, Mircea-Alexandru MATEESCU
  • Publication number: 20170072069
    Abstract: The present document describes a powder composition comprising a functionalized starch having a single helix V-structure and having a degree of substitution of at least 0.25, and a bioactive agent, forming an inclusion complex with said functionalized starch, where the bioactive agent is within the helix V-structure of the functionalized starch having a single helix V-structure. Also described are the functionalized starch having a single helix V-structure and having a degree of substitution of at least 0.25, methods of making the same and methods of using the same to manufacture the powder composition.
    Type: Application
    Filed: February 25, 2015
    Publication date: March 16, 2017
    Applicant: B-ORGANIC FILMS CORP.
    Inventors: Tien Canh LE, Mircea-Alexandru MATEESCU
  • Publication number: 20170049705
    Abstract: The present document describes a dosage form for delivery of an active ingredient comprising: a first carboxylated polymer having carboxyl groups, having a degree of substitution of at least 0.2, a molecular weight of at least 200 kDa, and at least 30% of said carboxyl groups being complexed with a divalent cation; alone or in a co-complex with at least one of a) a control release polymer chosen from an insoluble polymer or a polymer having a reduced water solubility at 30° C., and a soluble polymer; and b) a second carboxylated polymer having carboxyl groups complexed with a divalent cation. The document also describes processes of making a carboxylated polymer having carboxyl groups, having a degree of substitution of at least 0.2, a molecular weight of at least 200 kDa, and at least 30% of said carboxyl groups being complexed with a divalent cation, and an inclusion complex, a co-complex, or both comprising the same.
    Type: Application
    Filed: April 28, 2015
    Publication date: February 23, 2017
    Inventors: Mircea-Alexandru MATEESCU, Tien Canh LE