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: 6172101
    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: Grant
    Filed: April 23, 1998
    Date of Patent: January 9, 2001
    Assignee: G. D. Searle & Co.
    Inventors: Daniel P. Getman, Gary A. De Crescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Balekudru Deyadas, Srinivasan Nagarajan, David L. Brown, Joseph J. McDonald
  • Patent number: 6150556
    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: Grant
    Filed: June 7, 1995
    Date of Patent: November 21, 2000
    Assignee: G. D. Dearle & 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
  • Patent number: 6143788
    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: Grant
    Filed: January 21, 1998
    Date of Patent: November 7, 2000
    Assignee: G.D. Searle & Co.
    Inventors: Daniel P. Getman, Gary A. Decrescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Belekudru Devadas, Srinivasan RAJ Nagarajan, David L. Brown, Joseph J. McDonald
  • Patent number: 6143892
    Abstract: This invention relates to a novel process of preparing selected 5-substituted pyrazoles useful as p38 kinase and COX-2 inhibitors.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: November 7, 2000
    Assignee: G. D. Searle & Co.
    Inventors: Matthew J. Graneto, Michael L. Vazquez, Susan J. Hartmann, Suzanne Metz, John J. Talley, David L. Brown, Richard M. Weier, Michael A. Stealey, Xiaodong C. Xu
  • Patent number: 6137570
    Abstract: Disclosed is a method and apparatus for using far field scattered and diffracted light to determine whether a collection of topological features on a surface (e.g., a semiconductor wafer) conforms to an expected condition or quality. This determination is made by comparing the far field diffraction pattern of a surface under consideration with a corresponding diffraction pattern (a "baseline"). If the baseline diffraction pattern and far field diffraction pattern varies by more than a prescribed amount or in characteristic ways, it is inferred that the surface features are defective. The method may be implemented as a die-to-die comparison of far field diffraction patterns of two dies on a semiconductor wafer. The portion of the far field scattered and diffracted light sensitive to a relevant condition or quality can also be reimaged to obtain an improved signal-to-noise ratio.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: October 24, 2000
    Assignee: KLA-Tencor Corporation
    Inventors: Yung-Ho Chuang, J. Joseph Armstrong, David L. Brown, Jason Z. Lin, Bin-Ming Benjamin Tsai
  • Patent number: 6130920
    Abstract: A circuit (12) for symbol decision directed feedback synchronization includes a current synchonization clock (45) that provides an initial sampling point and selects a detector corresponding to a current symbol decision. The circuit further includes a plurality of detectors (31, 32, 33, and 34) including the detector corresponding to the current symbol decision, a buffer (736) for storing the output of the detector corresponding to the current symbol decision and a processor (300) for seeking within a predetermined window about the initial sampling point for an optimum phase value to provide an adjustment signal which is used by the processor to adjust a subsequent symbol's sychronization clock to provide an optimal sampling point.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: October 10, 2000
    Assignee: Motorola
    Inventors: Clinton C. Powell, II, Chun-Ye Chang, David L. Brown, David F. Brown, Robert Karl Schweickert
  • Patent number: 6077850
    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, A.sup.1, A.sup.2, A.sup.3, A.sup.4, R, R", R.sup.1 and R.sup.2 are as described in the specification.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: June 20, 2000
    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
  • Patent number: 6063795
    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: Grant
    Filed: May 10, 1999
    Date of Patent: May 16, 2000
    Assignee: G.D. Searle & Company
    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: 6034256
    Abstract: A class of benzopyran, derivatives is described for use in treating cyclooxygenase-2 mediated disorders. Compounds of particular interest are defined by Formula I' ##STR1## wherein X, A.sup.1, A.sup.2, A.sup.3, A.sup.4, R, R", R.sup.1 and R.sup.2 are as described in the specification.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: March 7, 2000
    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 R Nagarajan, Cathleen E Hanau, Susan J Hartmann, Cindy L Ludwig, Suzanne Metz
  • Patent number: 6029820
    Abstract: A combination shipping/display container that has gripping surfaces in two planes associated with the end walls of the container such that lifting of the container is facilitated for placing the containers on their bottom walls for shipping and for placing the containers on their side walls for display purposes.
    Type: Grant
    Filed: May 9, 1998
    Date of Patent: February 29, 2000
    Inventors: David L. Brown, Donnalee S. Brown
  • Patent number: 6014376
    Abstract: A method for synchronizing base stations (104, 106, 108, 110) or radio ports in a communication system (100) such as a cordless or cellular telephone system uses a mobile station (114) or handset for synchronizing unsynchronized base stations. The mobile station (114) is first synchronized to a reference base station. The mobile station (114) then initiates communication with the unsynchronized base station and calculates a synchronization adjustment. The mobile station (114) transmits the synchronization adjustment to the unsynchronized base station which uses the synchronization adjustment to adjust its time base.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: January 11, 2000
    Assignee: Motorola, Inc.
    Inventors: Victor M. Abreu, Raul A. Pombo, Paul D. Marko, David L. Brown
  • Patent number: 6011784
    Abstract: In a time division, multiple access system, a base station (102) transmits an isochronous beacon (404, 422) at the start of each frame (400), conveying control and timing information. Following the isochronous beacon (404), isochronous time slots (414, 416, 418, 420) are dynamically allocated for communication of isochronous data. After communication of the isochronous data, the remainder of the frame (400) before the next isochronous beacon (422) is used for transmission of packets of asynchronous data. This technique gives priority to the isochronous data, which is real time, while also maximizing the bandwidth allocated for asynchronous data. A single transmitter circuit (124, 158) and receiver circuit (122, 156) at each station are used for communication of both isochronous data and asynchronous data.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: January 4, 2000
    Assignee: Motorola, Inc.
    Inventors: David L. Brown, Paul D. Marko, Jaime A. Borras
  • Patent number: 5972989
    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: Grant
    Filed: February 24, 1998
    Date of Patent: October 26, 1999
    Assignee: 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: 5968970
    Abstract: Described herein is a retroviral protease inhibiting compound of the formula: ##STR1## or a pharmaceutically acceptable salt, prodrug or ester thereof.
    Type: Grant
    Filed: January 2, 1998
    Date of Patent: October 19, 1999
    Assignee: G. D. Searle & Company
    Inventors: Daniel P. Getman, Gary A. DeCrescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Balekudru Devadas, Srinivasan R. Nagarajan, David L. Brown, Joseph J. McDonald
  • Patent number: 5965601
    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: Grant
    Filed: March 3, 1998
    Date of Patent: October 12, 1999
    Assignee: 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: 5942600
    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: ##STR1## wherein R.sup.1 is selected form aminoalkyl, p-aminoalkylphenylalkyl, imidazolylalkylphenylalkyl, 2-alkylimidazolylalkylphenylalkyl, benzimidazolylalkylphenylalkyl and 2-alkylbenzimidazolylalkylphenylalkyl; wherein R.sup.2 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 24, 1997
    Date of Patent: August 24, 1999
    Assignee: G. D. Searle & Co.
    Inventors: James A. Sikorski, Balekudru Devadas, Daniel P. Getman, David L. Brown, Srinivasan Nagarajan, Mark E. Zupec, Jeffrey I. Gordon
  • Patent number: 5932598
    Abstract: Prodrugs of COX-2 inhibitors are described as being useful in treating inflammation and inflammation-related disorders.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: August 3, 1999
    Assignee: G. D. Searle & Co.
    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
  • Patent number: 5924488
    Abstract: The present invention provides improved methods of placing proppant in fractures formed in a subterranean zone to prevent the subsequent flow-back of the proppant with fluids produced from the zone. The methods are basically comprised of the steps of depositing a mixture of hardenable resin composition coated proppant and uncoated proppant in the fractures and then causing the resin composition to harden into stationary permeable masses in the fractures.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: July 20, 1999
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, David L. Brown, Steven F. Wilson
  • Patent number: D413625
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: September 7, 1999
    Assignee: Tektronix, Inc.
    Inventors: David L. Brown, Penelope C. Yao, Henry Y. Chin
  • Patent number: D416936
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: November 23, 1999
    Assignee: Tektronix, Inc.
    Inventors: Henry Y. Chin, Penelope C. Yao, David L. Brown