Patents Examined by Leigh C. Maier
  • Patent number: 11525214
    Abstract: Cellulose materials and methods of making the cellulose materials are described herein. The method can include contacting a cotton fabric with an oxidizing system to obtain an oxidized cotton material and processing the oxidized cotton material to form the cellulose material. The oxidizing system can include an aqueous mixture of a N-oxyl compound and a hypochlorite compound. During oxidation, the pH of the aqueous mixture can be maintained at from 8.5 to 11. Cellulose products can be formed from the cellulose materials. For example, the cellulose products can be used to form a packaging material, a biomedical device or implant, a drug delivery material, a fiber, a textile material, a template for electronic components, or a separation membrane. Methods of making the cellulose product include dissolving or suspending an active ingredient in a medium comprising the cellulose material.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: December 13, 2022
    Assignee: Board of Regents, The University of Texas System
    Inventor: Jonathan Y. Chen
  • Patent number: 11524026
    Abstract: Anti-heparanase compounds for the treatment of diabetes are described. The anti-heparanase compounds are high affinity, synthetic glycopolymers that result in minimal anticoagulant activity. Stereoselective fluorinated forms of these compounds are also provided.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: December 13, 2022
    Assignee: Wayne State University
    Inventors: Hien M. Nguyen, Kezhong Zhang, Ravi Sankar Loka
  • Patent number: 11524921
    Abstract: Disclosed is a new composite material comprising nanocellulose and hemp or a hemp-derived component, such as pure hemp, hemp bast fibers, hemp inner fibers, hemp shives, hemp leaves, hemp seeds, or ground hemp. The nanocellulose may be hydrophobic or hydrophilic, and may include cellulose nanocrystals, cellulose nanofibrils, cellulose microfibrils, or a combination thereof. This invention provides construction blocks or panels; engineered parts; fire-resistant objects; coatings; containers; textile compositions; and fabric materials, for example. The composite material may also include one or more additives to modify mechanical, thermal, chemical, and/or electrical properties. The addition of nanocellulose can improve the mechanical properties of hemp-containing concrete mixtures to improve compressive strength for construction purposes.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: December 13, 2022
    Inventor: Russell Moolman
  • Patent number: 11524027
    Abstract: The present invention provides compositions comprising hyaluronan with high elasticity, as well as methods for improving joint function, reducing pain associated with joint function and treating osteoarthritis by introducing into a joint a therapeutically effective amount of a composition comprising hyaluronan with high elasticity.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: December 13, 2022
    Assignee: Matrix Biology Institute
    Inventors: Endre A. Balazs, Carlos Belmonte
  • Patent number: 11518858
    Abstract: A method of forming a film comprising nanocellulose having an Oxygen Transmission Rate (OTR) value in the range of 0.1 to 300 cc/m2/24 h at 38° C. and 85% relative humidity (RH), and having a basis weight in the range of in the range of 0.1 to 45 g/m2 wherein the method comprises the steps of; providing a suspension comprising nanocellulose, forming at least one layer of a web or a film from said suspension; drying said formed web or film to a dry content of at least 65 weight-%, wherein said method further comprises the steps of; treating at least one side of said dewatered and dried web or film with ultra violet (UV) or electron beam (EB) irradiation; and wherein at least one cooling step is provided in connection with or after the UV or EB treatment step.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: December 6, 2022
    Assignee: Stora Enso OYJ
    Inventors: Esa Saukkonen, Isto Heiskanen, Kaj Backfolk, Ville Ribu
  • Patent number: 11518820
    Abstract: The present invention provides a novel method for producing carboxymethylated cellulose, the method making it possible to economically obtain a high-transparency cellulose nanofiber dispersion. In the carboxymethylation of cellulose, mercerization is carried out in a solvent comprising mainly water, and then carboxymethylation is carried out in a mixed solvent of water and an organic solvent. A nanofiber dispersion of high-transparency carboxymethylated cellulose can be obtained by defibrating the resulting carboxymethylated cellulose.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: December 6, 2022
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Kazuhiko Inoue, Takeshi Nakatani, Yusuke Tada
  • Patent number: 11512147
    Abstract: The present invention provides hyaluronic acid derivatives including one or more of each of repeating units represented by the formulae (Ia), (Ib), and (Ic) in which certain cationic sites, certain hydrophobic sites, and certain hydrophilic sites have been introduced. In addition, the present invention provides complexes of the hyaluronic acid derivatives with a drug and pharmaceutical compositions including the hyaluronic acid derivatives, in particular, complexes of the hyaluronic acid derivatives with a drug.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: November 29, 2022
    Assignee: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Kazuo Hattori, Takashi Nakai, Teruo Nakamura, Tsuyoshi Shimoboji
  • Patent number: 11504392
    Abstract: The present disclosure relates to a novel hydrogel, and to method of making and using the novel hydrogel. The novel hydrogel is a reaction product of a water soluble laccase cross-linked arabinoxylan and an acid, and has a pH value of 1.5-2.5.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: November 22, 2022
    Assignee: Purdue Research Foundation
    Inventors: Bruce R Hamaker, Xiaowei Zhang
  • Patent number: 11492418
    Abstract: Provided is a novel cyclic oligosaccharide derived from cellulose. The cyclic oligosaccharide is a cyclic oligosaccharide of Formula (1) having a ?-1,4 glucosidic bond. In the formula, R represents a hydrogen atom or a substituent thereof, a plurality of the Rs may be identical or different, and n represents an integer of 0 to 3.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: November 8, 2022
    Assignees: OSAKA UNIVERSITY, DKS CO. LTD.
    Inventors: Toshiyuki Kida, Masahito Nishiura
  • Patent number: 11492366
    Abstract: Compounds are described and characterized that bind guanine quadruplexes of DNA or RNA. Binding data and inhibition of growth data of five cancer cell lines are presented.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: November 8, 2022
    Inventors: Caitlin Miron, Anne Petitjean, Jean-Louis Mergny
  • Patent number: 11492323
    Abstract: The invention relates to a process for the manufacture of an alkylfluoroacrylate starting from alkylfluoroacetate and an oxalic acid ester, wherein an alkane liquid under the reaction conditions is applied as the solvent in one of the reaction steps.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: November 8, 2022
    Assignee: Patheon Austria GmbH & Co KG
    Inventors: Peter Kapitan, Alexander Sajtos
  • Patent number: 11491460
    Abstract: A nucleophilic substitution reaction to crosslink cyclodextrin (CD) polymer with rigid aromatic groups, providing a high surface area, mesoporous CD-containing polymers (P-CDPs). The P-CDPs can be used for removing organic contaminants from water. By encapsulating pollutants to form well-defined host-guest complexes with complementary selectivities to activated carbon (AC) sorbents. The P-CDPs can rapidly sequester pharmaceuticals, pesticides, and other organic micropollutants, achieving equilibrium binding capacity in seconds with adsorption rate constants 15-200 times greater than ACs and nonporous CD sorbents. The CD polymer can be regenerated several times, through a room temperature washing procedure, with no loss in performance.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: November 8, 2022
    Assignee: CORNELL UNIVERSITY
    Inventors: William R. Dichtel, Alaaeddin Alsbaiee, Brian J. Smith, Juan Hinestroza, Diego Alzate-Sanchez, Leilei Xiao, Yuhan Ling, Damian Helbling
  • Patent number: 11485797
    Abstract: The present invention provides a method for the production of chemically derivatized nanocellulose, comprising the step of a. contacting a precursor cellulosic material with a chemically derivatizing composition to form a liquid reaction mixture, and b. chemically reacting the formed liquid reaction mixture, and c. subjecting the formed liquid reaction mixture to microfluidisation, wherein the steps b. and c. are carried out simultaneously.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: November 1, 2022
    Assignee: SAPPI Netherlands Services B.V.
    Inventors: Rhodri Williams, Robert English, John Heaton
  • Patent number: 11472829
    Abstract: A method of processing an aqueous hemicellulosic stream containing lignin, comprising: (a) contacting an aqueous hemicellulosic stream containing lignin with a C3-8 alkyl alcohol at elevated temperature and acidic pH; (b) separating the reaction mixture obtained from step (a) into an aqueous phase containing hemicellulose-derived monosaccharide and an organic phase containing C3-8 alkyl alcohol; (c) concentrating the organic phase obtained from step (b) to remove at least some C3-8 alkyl alcohol; (d) treating the residue from step (c) with water or an aqueous medium having an alkaline pH; and (e) recovering C3-8 alkyl alcohol from the product of step (d).
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: October 18, 2022
    Assignee: SAPPI BIOTECH UK LIMITED
    Inventors: Edward Leslie Marshall, Alan Geoffrey Waite, David Peter Gibney
  • Patent number: 11466046
    Abstract: Provided herein are methods of preparing new 14-membered ketolides via coupling of an eastern and western half moiety, followed by macrocyclization, and optional functionalization. Intermediates in the synthesis of these ketolides including the eastern and western halves are also provided. Pharmaceutical compositions and methods of treating infectious diseases and inflammatory conditions using these ketolides are also provided.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: October 11, 2022
    Assignee: President and Fellows of Harvard College
    Inventors: Andrew G. Myers, Ian Bass Seiple, Ziyang Zhang
  • Patent number: 11466100
    Abstract: The present invention provides a novel method for producing carboxymethylated cellulose, the method making it possible to economically obtain a high-transparency cellulose nanofiber dispersion. In the carboxymethylation of cellulose, mercerization is carried out in a solvent comprising mainly water, and then carboxymethylation is carried out in a mixed solvent of water and an organic solvent. A nanofiber dispersion of high-transparency carboxymethylated cellulose can be obtained by defibrating the resulting carboxymethylated cellulose.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: October 11, 2022
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Kazuhiko Inoue, Takeshi Nakatani, Yusuke Tada
  • Patent number: 11458151
    Abstract: Toll-like receptor (TLR) ligands having an allose-based core are stable in aqueous formulation and are useful in treating, preventing, or reducing susceptibility to diseases or conditions mediated by TLRs, such as cancer, infectious disease, allergy, autoimmune disease, sepsis, and ischemia reperfusion.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: October 4, 2022
    Assignee: INIMMUNE CORPORATION
    Inventors: Helene Bazin-Lee, George Ettenger, Juhienah Khalaf, Kendal T. Ryter
  • Patent number: 11459432
    Abstract: Method for making a film that comprises microfibrillated cellulose, wherein the film has low OTR values and especially suitable for a tropical environment. The method comprising the steps of providing a suspension comprising microfibrillated cellulose (MFC), forming a film from said suspension, wherein the film having a solid content above 40%, preferably above 50%, treating the film with flame or plasma treatment, such that a surface activation takes place on the film, and cooling the film, wherein the surface of the film having a decreased OTR value and a high moisture resistance.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: October 4, 2022
    Assignee: Stora Enso OYJ
    Inventors: Isto Heiskanen, Kaj Backfolk, Esa Saukkonen, Ville Ribu, Katja Lyytikäinen
  • Patent number: 11452739
    Abstract: The use of a polysaccharide derived from a bacterial strain in the prevention of ocular diseases and the treatment of ocular diseases. Especially, the ophthalmic use of a polysaccharide susceptible to be obtained from the CNCM I-5038 Cobetia marina bacterial strain in ocular conditions associated with ophthalmic dryness and ophthalmic inflammation.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: September 27, 2022
    Assignee: SANTEN SAS
    Inventors: Jennifer Dourlat, Philippe Daull, Jean-Sébastien Garrigue
  • Patent number: 11447577
    Abstract: The present disclosure relates to polymers comprising conjugates of cyclodextrin or derivatives thereof and a linker moiety, methods of preparing the same and their application in the removal of lipids such as cholesterol from cells in treating lipid storage disorders. The present polymers exhibit improved properties including but not limiting to improved biocompatibility, improved retention time, prolonged duration of action in cells, and increased efficacy in removal of cholesterol from cells in treating lipid storage disorders.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: September 20, 2022
    Assignee: Aten Porus Lifesciences
    Inventors: Aditya Kulkarni, Atul Dolas, Princy Khurana, Soniya Johny, Manu Manjunath