Patents Examined by Ebenezer Sackey
  • Patent number: 6989455
    Abstract: In the process for the conversion of maleic acid to gamma-butyrolactone, 1.4-butanediol and/or tetrahydrofuran, a feedstream comprising maleic acid is hydrogenated in a first hydrogenation zone to produce a reaction product comprising succinic acid and unreacted hydrogen which is then supplied to a second hydrogenation zone, where succinic acid is converted to 1,4-butanediol, the temperatures of the feedstream comprising maleic acid and the first hydrogenation zone are controlled such that the temperature of maleic acid in the feedstream and the first hydrogenation zone does not exceed about 130° C., thereby minimizing the corrosive effects of the maleic acid and prolonging reactor life and improving overall process economics.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: January 24, 2006
    Assignee: ISP Investments Inc.
    Inventors: Robert P. Hepfer, Craig T. Miller, Gregory A. Norenberg, Thomas G. Attig, John R. Budge
  • Patent number: 6987112
    Abstract: The present invention is directed to compounds represented by Formula (1); wherein A, R, X, Y and n are as defined in the description, the salts thereof, and insecticide/acaricide compositions characterized by comprising one or more of said compounds and/or said salts as the active ingredients.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: January 17, 2006
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Yasushi Shibata, Renpei Hatano, Takao Iwasa, Satoru Makita, Daisuke Hanai, Masao Yamaguchi, Naomi Ichikawa
  • Patent number: 6987110
    Abstract: The present invention is directed to novel substituted pyrroline compounds useful as kinase or dual-kinase inhibitors, methods for producing such compounds and methods for treating or ameliorating a kinase or dual-kinase mediated disorder.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: January 17, 2006
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Han-Cheng Zhang, Bruce E. Maryanoff, Hong Ye, Bruce R. Conway, Keith Demarest
  • Patent number: 6987191
    Abstract: A process for the production of N-methyl pyrrolidone using gamma butyrolactone and mixed methylamines as starting materials, in a continuous process, in such operating conditions as to allow the production of high purity N-methyl pyrrolidone in high yields.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: January 17, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Aldo Bertola, Salvatore Cassarino, Philippe Raucq
  • Patent number: 6984749
    Abstract: Economical processes are disclosed for recovery and refining of valuable nitrogen-containing organic compounds formed by catalytic oxidation of least one feed compound selected from the group consisting of propane, propylene, isobutane and isobutylene in the presence of ammonia to produce a gaseous. Processes of the invention include quenching the gaseous reactor effluent with an aqueous quench liquid; forming an aqueous solution comprising the corresponding unsaturated mononitrile, hydrogen cyanide and other organic co-products; and using an integrated sequence of distillations and phase separations to recover for recycle of a useful aqueous liquid, and obtain the desired nitrogen-containing products. According to the invention aqueous solutions are fractionated in an integrated system of multi-stage columns while an effective polymerization inhibiting amount of at least one member of a preselected class of p-phenylenediamine compounds is maintained therein.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: January 10, 2006
    Assignee: BP Corporation North America Inc.
    Inventors: Bruce I. Rosen, Bruce E. Firth
  • Patent number: 6982342
    Abstract: A process for increasing the yield of acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a carboxylic acid, ammonia and air into a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbon, carboxylic acid, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: January 3, 2006
    Assignee: Standard Oil Company
    Inventors: Michael J. Seely, Sanjay P. Godbole, Christos Paparizos
  • Patent number: 6965046
    Abstract: A catalyst composition comprising a complex of catalytic oxides of iron, bismuth, molybdenum, cobalt, cerium, antimony, at least one of nickel or magnesium, and at least one of lithium, sodium, potassium, rubidium, or thallium, and characterized by the following empirical formula: AaBbCcFedBieCofCegSbhMomOx wherein A is at least one of Cr, P, Sn, Te, B, Ge, Zn, In, Mn, Ca, W, or mixtures thereof B is at least one of Li, Na, K, Rb, Cs, Tl, or mixtures thereof C is least one of Ni, Mg or mixtures thereof a is 0 to 4.0 b is 0.01 to 1.5 c is 1.0 to 10.0 d is 0.1 to 5.0 e is 0.1 to 2.0 f is 0.1 to 10.0 g is 0.1 to 2.0 h is 0.1 to 2.0 m is 12.0 to 18.0 and x is a number determined by the valence requirements of the other elements present. The catalyst is useful in processes for the ammoxidation of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile and mixtures thereof, respectively.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: November 15, 2005
    Assignee: The Standard Oil Co.
    Inventors: Christos Paparizos, Michael J. Seely, Maria S. Friedrich, Dev D. Suresh
  • Patent number: 6965037
    Abstract: Disclosed is a method for producing an aminocarbazole by catalytically reducing a nitrocarbazole, wherein as a catalyst is used an active nickel-based catalyst prepared by contacting a nickel-based catalyst with an alkali and an iron compound under a hydrogen gas or inert gas atmosphere in an inert solvent, and according to the method of the present invention, decrease in reaction speed, decrease in yield of a product or the like depending upon the lot of the starting nitrocarbazoles can be prevented, and aminocarbazoles can be produced in a good yield constantly.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: November 15, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takashi Kamikawa, Osamu Maruyama
  • Patent number: 6960594
    Abstract: A novel compound which inhibits certain integrins, particularly ?v integrins. Additionally, the novel compound may be used in a method of treating tumors or cancer which comprises administering a pharmaceutically effective amount of the compound to a patient. Additionally, the novel compound may be used in a method of inhibiting angiogensis. Finally, a method of producing the novel compound is disclosed.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: November 1, 2005
    Assignee: Shire BioChem Inc.
    Inventors: Denis Labrecque, Serge Lamothe, Marc Courchesne, Laval Chan, Giorgio Attardo, Karen Meerovitch
  • Patent number: 6960680
    Abstract: A process for making a water-soluble ?-hydroxynitrile. A 1,2-epoxide and an inorganic cyanide salt are reacted in a solvent having aqueous methanol and a buffer therein to form ?-hydroxynitrile. The buffer substantially inhibits the formation of reaction products other than ?-hydroxynitrile. Optionally, water may be removed from the ?-hydroxynitrile by azeotropic distillation with acetonitrile and subsequently purified via vacuum distillation and filtration.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: November 1, 2005
    Assignee: Rhodia Chirex, Inc.
    Inventors: Carl Henry Behrens, James Joseph Mencel
  • Patent number: 6953797
    Abstract: There is disclosed the use of a compound of formula (I), wherein R1, R2, X, Y, V, W and Z are as defined in the specification, and pharmaceutically acceptable salts, enantiomers or racemates thereof, in the manufacture of a medicament, for the treatment or prophylaxis of diseases or conditions in which inhibition of nitric oxide synthase activity is beneficial. Certain novel compounds of formula (Ia) and pharmaceutically acceptable salts thereof, and enantiomers and racemates thereof are disclosed; together with processes for their preparation, compositions containing them and their use in therapy.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: October 11, 2005
    Assignee: AstraZeneca AB
    Inventors: David Cheshire, Stephen Connolly, David Cox, Ian Millichip
  • Patent number: 6951884
    Abstract: The invention relates to fluorobenzamide derivatives of the formula wherein R1, R2, R3 R4, R5, R6 and R7 are as defined herein. =, The compounds of the invention are selective monoamine oxidase B inhibitors and therefore they are suitable for the treatment of diseases mediated by monoamine oxidase B, such as Alzheimer's disease or senile dementia.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: October 4, 2005
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Synese Jolidon, Rosa Maria Rodriguez Sarmiento, Andrew William Thomas, Rene Wyler
  • Patent number: 6949570
    Abstract: Disclosed are compounds which bind VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: September 27, 2005
    Assignees: Elan Pharmaceuticals, Inc., Wyeth
    Inventors: Susan Ashwell, Reinhardt Bernhard Baudy, Michael A. Pleiss, Dimitrios Sarantakis, Eugene D. Thorsett
  • Patent number: 6946560
    Abstract: One aspect of the present invention relates to novel ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming reactions. The subject methods provide improvements in many features of the transition metal-catalyzed reactions, including the range of suitable substrates, reaction conditions, and efficiency.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: September 20, 2005
    Assignee: Massachusetts Institute of Technology
    Inventors: Stephen L. Buchwald, David W. Old, John P. Wolfe, Michael Palucki, Ken Kamikawa
  • Patent number: 6930195
    Abstract: A process for the production of a dialkyl carbonate and a diol, such as dimethyl carbonate and ethylene glycol, by reacting a feed containing a cyclic carbonate, a hydroxy alkyl carbonate and an aliphatic monohydric alcohol in the presence of a transesterification catalyst is described. In another aspect, a process is described which is particularly useful for producing unsymmetric dialkyl carbonates, such as ethyl methyl carbonate.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: August 16, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: J. Scott Buchanan, Zhaozhong Jiang, Jose Guadalupe Santiesteban, William A. Weber
  • Patent number: 6924385
    Abstract: The invention relates to a method for synthesis of aliphatic isocyanates from aromatic isocyanates in substantially 3 stages. In particular, the invention relates to a method for synthesis of bis{4-isocyanatocyclohexyl}methane (H12MDI) from bis{4-isocyanatophenyl}methane (MDI). More especially, the invention relates to a method for synthesis of H12MDI with a trans-trans isomer content of <30%, preferably of <20%, particularly preferably of 5 to 15%.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: August 2, 2005
    Assignee: Degussa AG
    Inventors: Christian Lettmann, Stephan Kohlstruk, Guido Stochniol, Emmanouil Spyrou
  • Patent number: 6919358
    Abstract: Compounds are provided which have the structure wherein Q is C or N, A is O or S, Z is O or a bond, X is CH or N and R1, R2, R2a, R2b, R2c, R3, Y, x, m, and n are as defined herein, which compounds are useful as antidiabetic, hypolipidemic, and antiobesity agents.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: July 19, 2005
    Assignee: Bristol-Meyers Squibb Company
    Inventors: Peter T. Cheng, Pratik Devasthale, Yoon Jeon, Sean Chen, Hao Zhang
  • Patent number: 6916841
    Abstract: Novel compounds are disclosed which inhibit the activity of phospholipase enzymes in a mammal, particularly cytosolic phospholipase A2. Pharmaceutical compositions comprising such compounds and methods of treatment using such compositions are also disclosed.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: July 12, 2005
    Assignee: Genetics Institute, LLC
    Inventors: Jasbir S. Seehra, Neelu Kaila, John C. McKew, Frank Lovering, Jean E. Bemis, YiBin Xiang
  • Patent number: 6916840
    Abstract: A novel class of benz[g]indole compounds is disclosed together with the use of such compounds for inhibiting sPLA2 mediated release of fatty acids for treatment of Inflammatory Diseases such as septic shock.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: July 12, 2005
    Assignee: Eli Lilly and Company
    Inventors: Douglas Wade Beight, Michael Dean Kinnick, Ho-Shen Lin, John Michael Morin, Jr., Michael Enrico Richett, Daniel Jon Sall, Jason Scott Sawyer, Edward C R Smith
  • Patent number: 6914074
    Abstract: This invention provides estrogen receptor modulators of formula I, having the structure wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10, are as defined in the specification, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: July 5, 2005
    Assignee: Wyeth
    Inventors: Richard E. Mewshaw, Richard J. Edsall, Cuijian Yang, Heather A. Harris, James C. Keith, Jr., Leo M. Albert, Eric S. Manas