Patents by Inventor David L. Brown

David L. Brown 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: 6662873
    Abstract: Methods of forming a permeable cement composition in a well bore adjacent to a fluid producing zone therein and cement compositions for forming permeable cement sand screens in well bores are provided. A cement composition of the invention is comprised of a hydraulic cement, a particulate cross-linked aqueous gel having a size in the range of from about 100 microns to about 3000 microns containing an internal temperature activated breaker, a particulate dehydrated cross-linked aqueous gel having a size in the range,of from about 40 microns to about 500 microns containing an internal temperature activated breaker and water present in an amount sufficient to form a slurry.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: December 16, 2003
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, David L. Brown, Johnny A. Barton
  • Publication number: 20030216435
    Abstract: Selected amino acid hydroxyethylamino sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, relates to selected novel compounds, composition and method for inhibiting retroviral proteases, such as human immunodeficiency virus (HIV) protease, prophylactically preventing retroviral infection or the spread of a retrovirus, and treatment of a retroviral infection.
    Type: Application
    Filed: July 23, 2002
    Publication date: November 20, 2003
    Applicant: G. D. Searle & Co.
    Inventors: Daniel P. Getman, Gary A. DeCrescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Balekudru Devadas, Srinivasan Nagarajan, David L. Brown, Joseph J. McDonald
  • Publication number: 20030204097
    Abstract: Selected bis-amino acid hydroxyethylamino sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, relates to selected novel compounds, composition and method for inhibiting retroviral proteases, such as human immunodeficiency virus (HIV) protease, prophylactically preventing retroviral infection or the spread of a retrovirus, and treatment of a retroviral infection.
    Type: Application
    Filed: March 15, 2002
    Publication date: October 30, 2003
    Applicant: G.D. Searle & Co.
    Inventors: Daniel P. Getman, Gary A. DeCrescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Balekudru Devadas, Srinivasan Raj Nagarajan, David L. Brown, Joseph J. McDonald
  • Publication number: 20030197443
    Abstract: A stator core and method of making, the stator core and a plurality of separate poles are formed from lamination segments that are each stamped from a single piece of stock. The core includes a plurality of fixed pole segments and a plurality of engagement openings configured to receive and engage the separate pole segments. The method of making the stator core allows for maximum use of the material from which the laminations of the stator are stamped as well as an efficient use of the available space within the stator core. In addition, the method allows for maximum copper slot fill.
    Type: Application
    Filed: April 17, 2002
    Publication date: October 23, 2003
    Inventors: Robert Anthony Lawrence, David L. Brown
  • Patent number: 6632921
    Abstract: Seryl-lysyl-based peptide and peptidomimetic compounds are described as inhibitors of the enzyme N-myristoyl transferase to provide selective control of the fungal organism Candida albicans. Peptidomimetic compounds of particular interest are those of the formula: wherein R1 is selected form aminoalkyl, p-aminoalkylphenylalkyl, imidazolylalkylphenylalkyl, 2-alkylimidazolylalkylphenylalkyl, benzimidazolylalkylphenylalkyl and 2-alkylbenzimidazolylalkylphenylalkyl; wherein R2 is selected from hydrido, alkyl, cycloalkyl, akenyl, alkynyl, haloalkyl, benzyl, alkylphenylalkyl, alkoxyphenylalkyl, halophenylalkyl, phenethyl, cycloalkylalkyl, halocycloalkylalkyl, alkylcycloalkylalkyl, alkoxycycloalkylalkyl and naphthylalkyl; wherein Y is selected from carboxylic acid, hydroxamic acid, phosphonic acid and tetrazolyl; or a pharmaceutically-acceptable salt, amide or ester thereof. Compounds of the formula are species-specific inhibitors of C.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: October 14, 2003
    Assignee: G. D Searle & Co
    Inventors: James A. Sikorski, Devadas Balekudru, Daniel P. Getman, David L. Brown, Srinivasan Nagarajan, Mark E. Zupec, Jeffrey I. Gordon
  • Publication number: 20030166717
    Abstract: Disclosed are compounds of formula X, 1
    Type: Application
    Filed: May 31, 2002
    Publication date: September 4, 2003
    Inventors: John Freskos, David L. Brown, Yvette M. Fobian, Larry Fang, Arthur Glenn Romero, Varghese John
  • Publication number: 20030149078
    Abstract: Methods of treating cyclooxygenase-2 mediated disorders comprising administering to a subject a therapeutically effective amount of one or more fluoro-substituted benzenesulfonyl compounds corresponding to Formula I: 1
    Type: Application
    Filed: December 13, 2002
    Publication date: August 7, 2003
    Applicant: Pharmacia Corporation
    Inventors: David L. Brown, Matthew J. Graneto, Cindy L. Ludwig, John M. Molyneaux, John J. Talley
  • Patent number: 6600052
    Abstract: A novel process for preparing 3,4-di(carbocyclyl or heterocyclyl)thiophenes comprising reacting a compound of Formula IV: with a ring cyclizing reagent to form the compound of Formula V to yield a compound of Formula V: wherein R1, R2 and R3 are as defined in the specification.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: July 29, 2003
    Assignee: Pharmacia Corporation
    Inventors: David L. Brown, Cindy L. Ludwig
  • Publication number: 20030135057
    Abstract: This invention relates to a novel process of preparing selected 5-substituted pyrazoles useful as p38 kinase and COX-2 inhibitors.
    Type: Application
    Filed: October 10, 2002
    Publication date: July 17, 2003
    Inventors: Matthew J. Graneto, Michael L. Vazquez, Susan J. Hartmann, Suzanne Metz, John J. Talley, David L. Brown, Richard M. Weier, Michael A. Stealey, Xiangdong Xu
  • Patent number: 6592660
    Abstract: Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid and water present in an amount sufficient to form a slurry.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: July 15, 2003
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, Ronald J. Crook, Johnny A. Barton, David L. Brown
  • Publication number: 20030130202
    Abstract: Selected heterocyclecarbonyl amino acid hydroxyethylamino sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, relates to selected novel compounds, composition and method for inhibiting retroviral proteases, such as human immunodeficiency virus (HIV) protease, prophylactically preventing retroviral infection or the spread of a retrovirus, and treatment of a retroviral infection.
    Type: Application
    Filed: April 12, 2002
    Publication date: July 10, 2003
    Applicant: G.D. Searle & Co.
    Inventors: Daniel P. Getman, Gary A. DeCrescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Balekudru Devadas, Srinivasan Nagarajan, David L. Brown, Joseph J. McDonald
  • Patent number: 6549774
    Abstract: A satellite receiver is switchable between an operating mode wherein the receiver is capable of generating an output signal using received signals from one or a plurality of satellites, aid another operating mode wherein the receiver generates an output signal using signals received from only one satellite. The former operating mode is useful when the receiver is operating in a mobile environment. The latter operating mode is useful when the receiver is operating in a fixed environment. The receiver is configured to detect the mode in which it is operating. The receiver comprises at least two recevier arms for processing a broadcast signal from a selected one of two satellites. The receiver disables one of the arms when the receiver is stationary.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: April 15, 2003
    Assignee: XM Satellite Radio Inc.
    Inventors: Joseph M. Titlebaum, Robert L. Acker, David L. Brown
  • Publication number: 20030069287
    Abstract: Prodrugs of COX-2 inhibitors and methods of their preparation are described. The prodrugs of COX-2 inhibitors are described as being useful in treating inflammation and inflammation-related disorders.
    Type: Application
    Filed: June 24, 2002
    Publication date: April 10, 2003
    Applicant: Pharmacia Corporation
    Inventors: John J. Talley, James W. Malecha, Stephen Bertenshaw, Matthew J. Graneto, Jeffery S. Carter, Jinglin Li, Srinivasan Nagarajan, David L. Brown, Donald J. Rogier, Thomas D. Penning, Ish K. Khanna, Xiangdong Xu, Richard M. Weier
  • Publication number: 20030048032
    Abstract: A method of inserting coils in slots of a stator is provided. The method includes interleaving a first set of first phase windings and a first set of second phase windings on an insertion tool. The method also includes activating the insertion tool to radially insert the first set of first phase windings and the first set of second phase windings in the slots of the stator. In one embodiment, interleaving the first set of first phase windings and the first set of second phase windings on the insertion tool includes forming the first set of first phase windings in first phase openings defined in the insertion tool, and forming the first set of second phase windings in second phase openings defined in the insertion tool.
    Type: Application
    Filed: September 12, 2001
    Publication date: March 13, 2003
    Inventors: David L. Brown, Gerald R. Stabel, Robert Anthony Lawrence
  • Publication number: 20030032657
    Abstract: Methods of treating cyclooxygenase-2 mediated disorders comprising administering to a subject a therapeutically effective amount of one or more fluoro-substituted benzenesulfonyl compounds corresponding to Formula I: 1
    Type: Application
    Filed: April 16, 2002
    Publication date: February 13, 2003
    Applicant: Pharmacia Corporation
    Inventors: David L. Brown, Matthew J. Graneto, Cindy L. Ludwig, John M. Molyneaux, John J. Talley
  • Publication number: 20030004141
    Abstract: Medical devices, compositions and methods for treating or preventing atherosclerotic plaque rupture are disclosed. Specifically, medical devices that deliver to a treatment site metalloproteinase inhibitors (MMPI) are disclosed. The medical devices include catheters, guide wires, vascular stents, micro-particles, electronic leads, probes, sensors, drug depots, transdermal patches, and vascular patches. Representative MMPIs included zinc chelators, urea derivatives, caprolactone-based inhibitors, phoshoinamides, piperazines, sulfonamides, tertiary amines, carbamate derivatives, mercaptoalcohols, mecaptoketones, antimicrobial tertracyclines, non-antimicrobial tetracyclines, and derivatives and combinations thereof. In one embodiment a self-expanding vascular stent is coated with at least one MMPI and deployed at a site within an artery where vulnerable plaque has been identified.
    Type: Application
    Filed: March 8, 2002
    Publication date: January 2, 2003
    Inventor: David L. Brown
  • Patent number: 6492390
    Abstract: A class of benzopyrans, benzothiopyrans, dihydroquinolines, dihydronaphthalenes, and analogs thereof, is described for use in treating cyclooxygenase-2 mediated disorders. Compounds of particular interest are defined by Formula I′ wherein X, A1, A2, A3, A4, R, R″, R1 and R2 are as described in the specification.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: December 10, 2002
    Assignee: G.D. Searle & Co.
    Inventors: Jeffery S Carter, Mark G Obukowicz, Balekudru Devadas, John J Talley, David L Brown, Matthew J Graneto, Stephen R Bertenshaw, Donald J Rogier, Jr., Srinivasan Raj Nagarajan, Cathleen E Hanau, Susan J Hartmann, Cindy L Ludwig, Suzanne Metz, Donald E Korte
  • Publication number: 20020183362
    Abstract: Methods of treating cyclooxygenase-2 mediated disorders comprising administering to a subject a therapeutically effective amount of one or more 2-fluorobenzenesulfonyl compounds corresponding to Formula I: 1
    Type: Application
    Filed: April 20, 2001
    Publication date: December 5, 2002
    Applicant: Pharmacia Corporation
    Inventors: David L. Brown, Matthew J. Graneto, Cindy L. Ludwig, John J. Talley
  • Patent number: 6458785
    Abstract: Selected amino acid hydroxyethylamino sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to retroviral protease inhibitors and, more particularly, relates to selected novel compounds, composition and method for inhibiting retroviral proteases, such as human immunodeficiency virus (HIV) protease, prophylactically preventing retroviral infection or the spread of a retrovirus, and treatment of a retroviral infection.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: October 1, 2002
    Assignee: G. D. Searle
    Inventors: Daniel P Getman, Gary A. DeCrescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Balekudru Devadas, Srinivasan Nagarajan, David L. Brown, Joseph J. McDonald
  • Patent number: 6436967
    Abstract: This invention is in the field of antiinflammatory pharmaceutical agents and specifically relates to prodrugs of compounds which selectively inhibit cyclooxygenase-2. The use of non-steroidal antiinflammatory drugs (NSAIDs) in treating pain and the swelling associated with inflammation also produce severe side effects, including life threatening ulcers. The recent discovery of an inducible enzyme associated with inflammation (“prostaglandin G/H synthase II” or “cyclooxygenase-2 (COX-2)”) provides a viable target of inhibition which more effectively reduces inflammation and produces fewer and less drastic side effects.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: August 20, 2002
    Assignee: Pharmacia Corporation
    Inventors: John J Talley, James W Malecha, Stephen Bertenshaw, Matthew J Graneto, Jeffery Carter, Jinglin Li, Srinivasan Nagarajan, David L Brown, Donald J Rogier, Jr., Thomas D Penning, Ish K Khanna, Xiangdong Xu, Richard M Weier