Patents by Inventor David M. Schubert

David M. Schubert 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: 11970479
    Abstract: The present invention is directed to cinnolinyl and quinolinyl pyrazol-4-yl-pyridine compounds which are allosteric modulators of the M4 muscarinic acetylcholine receptor. The present invention is also directed to uses of the compounds described herein in the potential treatment or prevention of neurological and psychiatric disorders and diseases in which M4 muscarinic acetylcholine receptors are involved. The present invention is also directed to compositions comprising these compounds. The present invention is also directed to uses of these compositions in the potential prevention or treatment of such diseases in which M4 muscarinic acetylcholine receptors are involved.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: April 30, 2024
    Assignees: Merck Sharp & Dohme LLC, MSD R&D (China) Co. LTD.
    Inventors: John J. Acton, III, Melissa Egbertson, Xiaolei Gao, Scott T. Harrison, Timothy J. Henderson, Michael Man-Chu Lo, Robert D. Mazzola, Jr., Zhaoyang Meng, James Mulhearn, Vanessa L. Rada, Jeffrey W. Schubert, Oleg B. Selyutin, David M. Tellers, Ling Tong, Fengqi Zhang, Jianming Bao, Chunsing Li
  • Patent number: 8308997
    Abstract: The invention relates to a fire resistant composition and a method of making fire resistant cellulosic materials comprising the fire resistant composition. More specifically, the invention relates to liquid compositions, including liquid compositions comprising urea and a boron -containing compound for imparting fire resistance to cellulosic products. The boron-containing compound typically comprises boric acids; borates (i.e., boric acid salts); boric oxides (i.e., any compound containing boron and oxygen), and mixtures thereof.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: November 13, 2012
    Assignee: U.S. Borax Inc.
    Inventor: David M. Schubert
  • Publication number: 20090156073
    Abstract: The invention relates to a fire resistant composition and a method of making fire resistant cellulosic materials comprising the fire resistant composition. More specifically, the invention relates to liquid compositions, including liquid compositions comprising urea and a boron-containing compound for imparting fire resistance to cellulosic products. The boron-containing compound typically comprises boric acids; borates (i.e., boric acid salts); boric oxides (i.e., any compound containing boron and oxygen), and mixtures thereof.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 18, 2009
    Inventor: David M. Schubert
  • Patent number: 7547354
    Abstract: Compositions and methods are provided for treating wood products to provide leach-resistant protection against fungal decay, termites and other wood destroying organisms. The preservative compositions provided include ammonia-stabilized solutions of zinc and boron, preferably in a molar ratio of Zn:B of between about 0.4:1 and 5:1, and are essentially copper free. The preservative may be applied by vacuum and/or pressure treatment or dip treatment under atmospheric pressure.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: June 16, 2009
    Assignees: PQ Corporation, U.S. Borax Inc.
    Inventors: Yatao Hu, Neil T. Miller, David M. Schubert
  • Patent number: 7497900
    Abstract: Systems and methods are provided for treating products containing wood fibers to provide protection against wood destroying organisms and fire, and resistance against leaching of the preservative from the wood by water in exposed environments such as exterior applications. The methods involve applying to a substrate a first aqueous composition containing a boron compound, a source of zinc, and ammonia, followed by application of a second aqueous composition containing an alkali metal silicate. The compositions may be applied by vacuum and/or pressure treatment or dip treatment under atmospheric pressure.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: March 3, 2009
    Assignees: PQ Corporation, U.S. Borax Inc.
    Inventors: Yatao Hu, Jason D. Lenox, Neil T. Miller, David M. Schubert
  • Publication number: 20080305351
    Abstract: A method for inhibiting the crystallization of boric acid is provided. Boric acid is dissolved in water and a vitrifying agent, such as an amino alcohol or amino acid, to form an aqueous mixture which is then dried to form a vitreous boric acid-containing residue. This mixture, when applied to a surface and allowed to dry on the surface, forms a vitreous boric acid-containing coating which is readily adherent to the surface, or if allowed to penetrate into a porous substrate, deposits a vitreous boric acid-containing residue within the substrate upon drying. The vitreous boric acid-containing residue provides beneficial properties, including for example improved fire retardancy and biocidal protection, to a variety of materials such as cotton batting, cellulose, and wood and paper products and gypsum wallboard.
    Type: Application
    Filed: March 24, 2005
    Publication date: December 11, 2008
    Inventor: David M. Schubert
  • Publication number: 20080166481
    Abstract: Compositions and methods are provided for treating wood products to provide leachresistant protection against fungal decay, termites and other wood destroying organisms. The preservative compositions provided include ammonia-stabilized solutions of zinc and boron, preferably in a molar ratio of Zn:B of between about 0.4:1 and 5:1, and are essentially copper free. The preservative may be applied by vacuum and/or pressure treatment or dip treatment under atmospheric pressure.
    Type: Application
    Filed: March 31, 2005
    Publication date: July 10, 2008
    Inventors: Yatao Hu, Neil T. Miller, David M. Schubert
  • Publication number: 20080124478
    Abstract: Systems and methods are provided for treating products containing wood fibers to provide protection against wood destroying organisms and fire, and resistance against leaching of the preservative from the wood by water in exposed environments such as exterior applications. The methods involve applying to a substrate a first aqueous composition containing a boron compound, a source of zinc, and ammonia, followed by application of a second aqueous composition containing an alkali metal silicate. The compositions may be applied by vacuum and/or pressure treatment or dip treatment under atmospheric pressure.
    Type: Application
    Filed: March 31, 2005
    Publication date: May 29, 2008
    Applicants: U.S. BORAX INC., PQ CORPORATION
    Inventors: Yatao Hu, Jason D. Lenox, Neil T. Miller, David M. Schubert
  • Patent number: 6919036
    Abstract: A family of borate compounds containing an isolated (finite) nonaborate anion with the structural formula [B9O12(OH)6]3?. Preferred amine nonaborate compounds have a resolved oxide formula of A2O.3B2O3.2H2O, where A is the monovalent cation of an amine salt, such as guanidinium and imidazolium. Also provided is a method for preparing these compounds by crystallization from an aqueous solution under mild conditions without the formation of significant amounts of by-products. These compounds have potential application as precursors for the production of advanced boron nitride ceramic materials, and as flame retardants, corrosion inhibitors, and biocides.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: July 19, 2005
    Assignee: U.S. Borax Inc.
    Inventor: David M. Schubert
  • Publication number: 20030109751
    Abstract: A family of borate compounds containing an isolated (finite) nonaborate anion with the structural formula [B9O12(OH)6]3−. Preferred amine nonaborate compounds have a resolved oxide formula of A2O.3B2O3.2H2O, where A is the monovalent cation of an amine salt, such as guanidinium and imidazolium. Also provided is a method for preparing these compounds by crystallization from an aqueous solution under mild conditions without the formation of significant amounts of by-products. These compounds have potential application as precursors for the production of advanced boron nitride ceramic materials, and as flame retardants, corrosion inhibitors, and biocides.
    Type: Application
    Filed: July 19, 2002
    Publication date: June 12, 2003
    Inventor: David M Schubert
  • Patent number: 5785939
    Abstract: An improved method is provided for producing crystalline calcium hexaborate tetrahydrate, synthetic nobleite, by the reaction of boric acid and lime in an aqueous slurry. Reaction conditions include boric acid to water molar ratios of greater than 0.25:1, lime to boric acid molar ratios in the range of 0.05-0.15:1 and temperatures in the range of 60.degree.-85.degree. C. A concentration of at least 25% by weight undissolved solids is in the aqueous product slurry.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: July 28, 1998
    Assignee: U.S. Borax Inc.
    Inventor: David M. Schubert
  • Patent number: 5688481
    Abstract: An improved method is provided for producing crystalline calcium hexaborate tetrahydrate, synthetic nobleite, by the reaction of boric acid and lime in an aqueous slurry. Reaction conditions include boric acid to water molar ratios of greater than 0.25:1, lime to boric acid molar ratios in the range of 0.05-0.15:1 and temperatures in the range of 85.degree.-105.degree. C. A novel crystalline product is produced having a unique crystal habit resulting in improved physical properties. Dehydration of this product produced a novel amorphous, anhydrous product having similar crystal habit and physical properties.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: November 18, 1997
    Assignee: U.S. Borax Inc.
    Inventor: David M. Schubert
  • Patent number: 5612094
    Abstract: Lumber, plywood and other wood products are preserved from attack by fungi, termites and wood-destroying insects as well as fire and flame by treatment with a novel zirconium borate-containing preservative composition. The preservative can be formed by combination of a source of boron such as boric acid and the water-soluble salts thereof with a water-soluble zirconium salt. The ZrO.sub.2 :B.sub.2 O.sub.3 weight ratio in the preservative composition is in the range of from about 0.75:1 to about 10:1.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: March 18, 1997
    Assignee: U.S. Borax Inc.
    Inventors: David M. Schubert, Mark J. Manning
  • Patent number: 5472644
    Abstract: Zinc borate compositions having a ZnO:B.sub.2 O.sub.3 ratio of 4:1. The hydrated zinc borate 4ZnO.B.sub.2 O.sub.3.H.sub.2 O and anhydrous zinc borate 4ZnO.B.sub.2 O.sub.3 are especially useful as fire-retardants and smoke-suppressant additives for polymeric compositions.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: December 5, 1995
    Assignee: U.S. Borax Inc.
    Inventor: David M. Schubert
  • Patent number: 5342553
    Abstract: Zinc borate compositions having a ZnO:B.sub.2 O.sub.3 ratio of 4:1. The hydrated zinc borate 4ZnO.B.sub.2 O.sub.3.H.sub.2 O and anhydrous zinc borate 4ZnO.B.sub.2 O.sub.3 are especially useful as fire-retardants and smoke-suppressant additives for polymeric compositions.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: August 30, 1994
    Assignee: U. S. Borax Inc.
    Inventor: David M. Schubert