Patents by Inventor Robert J. Kupper

Robert J. Kupper 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: 20090263196
    Abstract: The invention provides methods for suppressing the degradation of wood, wood products, and wooden structures due to infestation by wood-boring organisms, by use of a polyurea composition. The invention also provides for wood, wood products, and wood structures that are resistant to degradation due to borer infestation by use of a polyurea composition.
    Type: Application
    Filed: July 1, 2009
    Publication date: October 22, 2009
    Inventors: Kenneth I. Sawyer, Robert J. Kupper
  • Patent number: 7572461
    Abstract: The invention provides methods for suppressing the degradation of wood, wood products, and wooden structures due to infestation by wood-boring organisms, by use of a polyurea composition. The invention also provides for wood, wood products, and wood structures that are resistant to degradation due to borer infestation by use of a polyurea composition.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: August 11, 2009
    Inventors: Kenneth I. Sawyer, Robert J. Kupper
  • Publication number: 20080194859
    Abstract: The invention is directed to novel compounds that are used in the formation of polyurea compositions, including one-part and two-part polyurea compositions. The invention is also directed to polyureas formed from such compounds, cross-linked polyureas, and UV-stabilized polyureas.
    Type: Application
    Filed: May 16, 2005
    Publication date: August 14, 2008
    Inventors: Kenneth I. Sawyer, Robert J. Kupper
  • Publication number: 20080132702
    Abstract: The present invention is directed to a process for reducing the level of ?, ?-unsaturated ketone in an opioid analgesic composition by hydrogenation with diimide or a diimide progenitor.
    Type: Application
    Filed: February 27, 2006
    Publication date: June 5, 2008
    Applicant: Euro-Celtique S.A.
    Inventor: Robert J. Kupper
  • Patent number: 6958398
    Abstract: Methods for making thebaine and an acid salt of thebaine are disclosed herein. In one embodiment, an acid salt of thebaine is made from codeinone or an acid salt of one or more of the following: 8-methoxy-?6-dihydrothebaine, codeinone dimethyl ketal, and neopinone dimethyl ketal.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: October 25, 2005
    Assignee: Euro-Celtique S.A.
    Inventors: Robert J. Kupper, Arie Gutman, Igor Rukhman, Lev Yudovich, Gennady A. Nisnevich
  • Patent number: 6784319
    Abstract: Compositions comprising (±)-2-((dimethylamino)methyl)cyclohexanone, a transition-metal salt, and an organic solvent and methods of preparing (±)-cis-2-((dimethylamino)methyl)-1-(aryl)cyclohexanols, in particular (±)-cis-2-((dimethylamino)methyl)-1-(3-methoxyphenyl)cyclohexanol, are disclosed herein. In one embodiment, the (±)-2-((dimethylamino)methyl)cyclohexanone and transition-metal salt are in the form of a (±)-2-((dimethylamino)methyl)cyclohexanone:transition-metal salt complex. In another embodimemt, aryl is 3-methoxyphenyl.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: August 31, 2004
    Assignee: Euro-Celtique, S.A.
    Inventors: Robert J. Kupper, Andreas Stumpf
  • Publication number: 20040054209
    Abstract: Compositions comprising (±)-2-((dimethylamino)methyl)cyclohexanone, a transition-metal salt, and an organic solvent and methods of preparing (±)-cis-2-((dimethylamino)methyl)-1-(aryl)cyclohexanols, in particular (±)-cis-2-((dimethylamino)methyl)-1-(3-methoxyphenyl)cyclohexanol, are disclosed herein. In one embodiment, the (±)-2-((dimethylamino)methyl)cyclohexanone and transition-metal salt are in the form of a (±)-2-((dimethylamino)methyl)cyclohexanone:transition-metal salt complex. In another embodimemt, aryl is 3-methoxyphenyl.
    Type: Application
    Filed: September 15, 2003
    Publication date: March 18, 2004
    Inventors: Robert J. Kupper, Andreas Stumpf
  • Publication number: 20040033253
    Abstract: This invention relates to a tamper-resistant transdermal-delivery device comprising an opioid, or a pharmaceutically acceptable salt thereof, and an acyl opioid antagonist, or a pharmaceutically acceptable salt thereof. The transdermal-delivery device allows an analgesically effective amount of the opioid, or a pharmaceutically acceptable salt thereof, to be transdermally administered to a patient. The invention further relates to methods for treating or preventing pain in a patient comprising contacting the skin of a patient in need thereof with the transdermal-delivery device of the invention for an amount of time sufficient to treat or prevent pain. The invention further relates to acyl opioid antagonists.
    Type: Application
    Filed: February 14, 2003
    Publication date: February 19, 2004
    Inventors: Ihor Shevchuk, James P. Cassidy, Bruce Reidenberg, Dale E. Sharp, Robert J. Kupper
  • Patent number: 6649783
    Abstract: Compositions comprising (±)-2-((dimethylamino)methyl)cyclohexanone, a transition-metal salt, and an organic solvent and methods of preparing (±)-cis-2-((dimethylamino)methyl)-1-(aryl)cyclohexanols, in particular (±)-cis-2-((dimethylamino)methyl)-1-(3-methoxyphenyl)cyclohexanol, are disclosed herein. In one embodiment, the (±)-2-((dimethylamino)methyl)cyclohexanone and transition-metal salt are in the form of a (±)-2-((dimethylamino)methyl)cyclohexanone:transition-metal salt complex. In another embodimemt, aryl is 3-methoxyphenyl.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: November 18, 2003
    Assignee: Euro-Celtique, S.A.
    Inventors: Robert J. Kupper, Andreas Stumpf
  • Publication number: 20030065221
    Abstract: Compositions comprising (±)-2-((dimethylamino)methyl)cyclohexanone, a transition-metal salt, and an organic solvent and methods of preparing (±)-cis-2-((dimethylamino)methyl)-1-(aryl)cyclohexanols, in particular (±)-cis-2-((dimethylamino)methyl)-1-(3-methoxyphenyl)cyclohexanol, are disclosed herein. In one embodiment, the (±)-2-((dimethylamino)methyl)cyclohexanone and transition-metal salt are in the form of a (±)-2-((dimethylamino)methyl)cyclohexanone:transition-metal salt complex. In another embodimemt, aryl is 3-methoxyphenyl.
    Type: Application
    Filed: October 3, 2001
    Publication date: April 3, 2003
    Inventors: Robert J. Kupper, Andreas Stumpf
  • Patent number: 4873359
    Abstract: Synthesis of phenylserine ester (a) via benzaldehyde and glycine ester using serine hydroxymethyltransferase; and (b) via methyl benzoylacetate. Synthesis of hydroxy-aspartame or derivative by enzymatic coupling of phenylserine or derivative with aspartic acid or derivative. Hydrogenation of the coupled product to give as final product aspartame or analog with related processes and products.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: October 10, 1989
    Assignee: W. R. Grace & Co. - Conn.
    Inventors: Alan B. Chmurny, Akiva T. Gross, Robert J. Kupper, Rowena L. Roberts
  • Patent number: 4855455
    Abstract: A hydroxy-carboxylate ester is converted to an amino-acid-amide by replacement of the --OH group with --N.sub.3, via, e.g., CH.sub.3 SO.sub.2 Cl and NaN.sub.3 ; reacting with amine to convert the ester to amide; and hydrogenating --N.sub.3 to --NH.sub.2. The present process alleviates the conventional use of blocking-deblocking procedures.
    Type: Grant
    Filed: January 22, 1988
    Date of Patent: August 8, 1989
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Robert J. Kupper
  • Patent number: 4851588
    Abstract: A process of forming 2-bromo-2-nitro-1,3-propanediol by contacting a 5-nitro-1,3-dioxane with bromine under alkaline conditions and hydrolyzing the brominated product.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: July 25, 1989
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Robert J. Kupper, Felek Jachimowicz, Jennifer M. Quirk, Christer L. Hakansson
  • Patent number: 4820881
    Abstract: A process to decolorize and stabilize nitro compounds by contacting the nitro compound with an alkaline earth metal hypochlorite particulate material.
    Type: Grant
    Filed: May 24, 1988
    Date of Patent: April 11, 1989
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Robert J. Kupper
  • Patent number: 4810817
    Abstract: Synthesis of phenylserine ester (a) via benzaldehyde and glycine ester using serine hydroxymethyltransferase; and (b) via methyl benzoylacetate. Synthesis of hydroxy-aspartame or derivative by enzymatic coupling of phenylserine or derivative with aspartic acid or derivative. Hydrogenation of the coupled product to give as final product aspartame or analog with related processes and products.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: March 7, 1989
    Assignee: W. R. Grace & Co.
    Inventors: Alan B. Chmurny, Akiva T. Gross, Robert J. Kupper, Rowena L. Roberts
  • Patent number: 4801742
    Abstract: Formylating the amino nitrogen of an alkali metal salt of an amino carboxylic acid, by reacting the salt with an alkyl formate in an alkanol solvent. In one embodiment, the alkyl formate is added to the reaction as such; in another embodiment, the alkyl formate is formed in situ by reaction of carbon monoxide with the alkanol solvent in the presence of the alkali metal salt of the amino carboxylic acid. The process provides a new class of compounds, the alkali metal salts of N-formyl-aspartic acids.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: January 31, 1989
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Jennifer M. Quirk, Charles G. Carter, Robert J. Kupper
  • Patent number: 4710583
    Abstract: Synthesis of phenylserine ester (a) via benzaldehyde and glycine ester using serine hydroxymethyltransferase; and (b) via methyl benzoylacetate. Synthesis of hydroxy-aspertame or derivative by enzymatic coupling of phenylserine or derivative with aspertic acid or derivative. Hydrogenation of the coupled product to give as final product aspertame or analog with related processes and products.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: December 1, 1987
    Assignee: W. R. Grace & Co.
    Inventors: Alan B. Chmurny, Akiva T. Gross, Robert J. Kupper, Rowena L. Roberts