Patents by Inventor Donald W. Hansen

Donald W. Hansen 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).

  • Homoiminopiperidinyl hexanoic acid inhibitors of inducible nitric oxide synthase
    Patent number: 6495544
    Abstract: Homoiminopiperidinyl Hexanoic Acid derivatives and pharmaceutically acceptable salts thereof useful in the inhibition of the inducible isoform of nitric oxide synthase are disclosed.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: December 17, 2002
    Assignee: Pharmacia Corporation
    Inventors: Donald W. Hansen, Jr., Jeffrey S. Snyder, Alan E. Moormann, Alok K. Awasthi, Ronald Keith Webber, Thaddeus S. Franczyk, Mahima Trivedi
  • Heterobicyclic and tricyclic nitric oxide synthase inhibitors
    Patent number: 6489323
    Abstract: The current invention relates to compounds of Formula I pharmaceutical compositions and methods of use as nitric oxide synthase inhibitors, wherein the substituents are defined in the application.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: December 3, 2002
    Assignee: G.D. Searle & Co.
    Inventors: Donald W. Hansen, Jr., R. Keith Webber, E. Ann Hallinan, Mihaly V. Toth, Barnett S. Pitzele, Alok K. Awasthi, Alan E. Moormann, Suzanne Metz, Jeffery S. Snyder, William M. Moore, Jeffrey A. Scholten
  • Halogenated 2-amino-5,6 heptenoic acid derivatives useful as nitric oxide synthase inhibitors
    Patent number: 6465686
    Abstract: The present invention discloses halogenated 2-amino-5,6 heptenoic acid derivatives useful as nitric oxide synthase inhibitors.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: October 15, 2002
    Assignee: Pharmacia Corporation
    Inventors: Margaret L. Grapperhaus, James A. Sikorski, Alok K. Awasthi, Lijuan J. Wang, Barnett S. Pitzele, Donald W. Hansen, Jr., Pamela T. Manning
  • Halogenated 2-amino-4, 5 heptenoic acid derivatives useful as nitric oxide synthase inhibitors
    Patent number: 6465518
    Abstract: The present invention contains halogenated 2-amino-4,5 heptenoic acid derivatives useful as nitric oxide synthase inhibitors.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: October 15, 2002
    Assignee: Pharmacia Corporation
    Inventors: Donald W. Hansen, Jr., Ronald Keith Webber, Alok K. Awasthi, Pamela T. Manning
  • 2-amino-5, 6 heptenoic acid derivatives useful as nitric oxide synthase inhibitors
    Publication number: 20020143061
    Abstract: The present invention contains novel compounds useful as nitric oxide synthase inhibitors.
    Type: Application
    Filed: April 16, 2001
    Publication date: October 3, 2002
    Inventors: Barnett S. Pitzele, James A. Sikorski, Donald W. Hansen, Ronald Keith Webber, Mihaly V. Toth, Jeffrey A. Scholten, Jeffrey S. Snyder
  • 2-Amino-2-alkyl-5 heptenoic and heptynoic acid derivatives useful as nitric oxide synthase inhibitors
    Publication number: 20020132849
    Abstract: The present invention relates to 2-amino-2-alkyl-5 heptenoic and heptynoic acid derivatives and their use in therapy, in particular their use as nitric oxide synthase inhibitors.
    Type: Application
    Filed: September 15, 2001
    Publication date: September 19, 2002
    Inventors: Donald W. Hansen, Ronald Keith Webber, Barnett S. Pitzele, James Sikorski, Mark A. Massa, Timothy J. Hagen, Margaret Grapperhaus, Lijuan Jane Wang, Arija A. Bergmanis, Steven W. Kramer, E. Ann Hallinan
  • 2-Amino-2-alkyl-4 hexenoic and hexynoic acid derivatives useful as nitric oxide synthase inhibitors
    Publication number: 20020128510
    Abstract: The present invention relates to 2-amino-2-alkyl-4 hexenoic and hexynoic acid derivatives and their use in therapy, in particular their use as nitric oxide synthase inhibitors.
    Type: Application
    Filed: September 15, 2001
    Publication date: September 12, 2002
    Inventors: Richard C. Durley, James Sikorski, Donald W. Hansen, Michelle A. Promo, Ronald Keith Webber, Barnett S. Pitzele, Alok K. Awasthi, Alan Moorman
  • Imino pyrrolidine derivatives useful as nitric oxide synthase inhibitors
    Patent number: 6448286
    Abstract: The current invention discloses useful pharmaceutical compositions containing amidino derivative useful as nitric oxide synthase inhibitors.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: September 10, 2002
    Assignee: G.D. Searle & Co.
    Inventors: Donald W. Hansen, Jr., Mark G. Currie, E. Ann Hallinan, Kam F. Fok, Timothy J. Hagen, Arija A. Bergmanis, Steven W. Kramer, Len F. Lee, Suzanne Metz, William M. Moore, Karen B. Peterson, Barnett S. Pitzele, Dale P. Spangler, R. Keith Webber, Mihaly V. Toth, Mahima Trivedi, Foe S. Tjoeng
  • Homoiminopiperidinyl hexanoic acid inhibitors of inducible nitric oxide synthase
    Publication number: 20020119964
    Abstract: Homoiminopiperidinyl Hexanoic Acid derivatives and pharmaceutically acceptable salts thereof useful in the inhibition of the inducible isoform of nitric oxide synthase are disclosed.
    Type: Application
    Filed: August 1, 2001
    Publication date: August 29, 2002
    Inventors: Donald W. Hansen, Jeffrey S. Snyder, Alan E. Moormann, Alok K. Awasthi, Ronald Keith Webber, Thaddeus S. Franczyk, Mahima Trivedi
  • Amidino compounds useful as nitric oxide synthase inhibitors
    Publication number: 20020111493
    Abstract: The present invention relates to amidino compounds and salts and prodrugs thereof. In another embodiment the present invention also provides a use of the present compounds in therapy, particular as nitric oxide synthase inhibitors. In a further embodiment, the present invention provides methods of making the amidino compounds.
    Type: Application
    Filed: March 23, 2001
    Publication date: August 15, 2002
    Inventors: Ronald Keith Webber, Alok K. Awasthi, Arija A. Bergmanis, Richard C. Durley, Kam F. Fok, Scott S. Ganser, Timothy J. Hagen, E. Ann Hallinan, Donald W. Hansen, Brian S. Hickory, Pamela T. Manning, Michael Mao, Alan E. Moormann, Barnett S. Pitzele, Michelle A. Promo, Richard R. Schartman, Jeffrey A. Scholten, Jeffrey S. Snyder, Mihaly V. Toth, Mahima Trivedi, Sofya Tsymbalov, Foe Siong Tjoeng
  • 2-Amino-2-alky-4 heptenoic and heptynoic acid derivatives useful as nitric oxide synthase inhibitors
    Publication number: 20020103398
    Abstract: The present invention relates to 2-amino-2-alkyl-4 heptenoic and heptynoic ac derivatives and their use in therapy, in particular their use as nitric oxide synthase inhibitors.
    Type: Application
    Filed: September 15, 2001
    Publication date: August 1, 2002
    Inventors: Donald W. Hansen, Mahima Trivedi, Mihaly V. Toth, Ronald Keith Webber, Barnett S. Pitzele, Alok K. Awasthi, James Sikorski
  • Aminotetrazole derivatives useful as nitric oxide synthase inhibitors
    Patent number: 6410542
    Abstract: The current invention discloses aminotetrazole derivatives useful as nitric oxide synthase inhibitors.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: June 25, 2002
    Assignee: G. D. Searle & Co.
    Inventors: E. Ann Hallinan, Donald W. Hansen, Jr., Sofya Tsymbalov
  • 2-amino-2-alkyl-3 heptenoic and heptynoic acid derivatives useful as nitric oxide synthase inhibitors
    Publication number: 20020072630
    Abstract: The present invention relates to 2-amino-2-alkyl-3 heptenoic and heptynoic ac derivatives and their use in therapy, in particular their use as nitric oxide synthase inhibitors
    Type: Application
    Filed: September 15, 2001
    Publication date: June 13, 2002
    Inventors: Donald W. Hansen, Ronald Keith Webber, Barnett S. Pitzele, Alok K. Awasthi, James Sikorski, Mahima Trivedi
  • 2-amino-2-alkyl-3 hexenoic and hexynoic acid derivatives useful as nitric oxide synthase inhibitors
    Publication number: 20020072631
    Abstract: The present invention relates to 2-amino-2-alkyl-3 hexenoic and hexynoic acid derivatives and their use in therapy, in particular their use as nitric oxide synthase inhibitors.
    Type: Application
    Filed: September 15, 2001
    Publication date: June 13, 2002
    Inventors: Donald W. Hansen, Ronald Keith Webber
  • Amidino compound and salts thereof useful as nitric oxide synthase inhibitors
    Patent number: 6403830
    Abstract: The present invention relates to S-[2-[(1-Iminoethyl)amino]ethyl]-2-methyl-L-cysteine, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: June 11, 2002
    Assignee: Pharmacia Corporation
    Inventors: Ronald Keith Webber, Richard C. Durley, Alok K. Awasthi, Arija A. Bergmanis, Scott S. Ganser, Timothy J. Hagen, E. Ann Hallinan, Donald W. Hansen, Jr., Brian S. Hickory, Alan E. Moormann, Barnett S. Pitzele, Michelle A. Promo, Richard R. Schartman, Jeffrey S. Snyder, Mahima Trivedi, Sofya Tsymbalov
  • Halogenated 2-amino-5,6 heptenoic acid derivatives useful as nitric oxide synthase inhibitors
    Publication number: 20020049202
    Abstract: The present invention discloses halogenated 2-amino-5,6 heptenoic acid derivatives useful as nitric oxide synthase inhibitors.
    Type: Application
    Filed: April 13, 2001
    Publication date: April 25, 2002
    Inventors: Margaret L. Grapperhaus, James A. Sikorski, Alok K. Awasthi, Lijuan J. Wang, Barnett S. Pitzele, Donald W. Hansen, Pamela T. Manning
  • Halogenated 2-amino-4, 5 heptenoic acid derivatives useful as nitric oxide synthase inhibitors
    Publication number: 20020037927
    Abstract: The present invention contains halogenated 2-amino-4,5 heptenoic acid derivatives useful as nitric oxide synthase inhibitors.
    Type: Application
    Filed: April 13, 2001
    Publication date: March 28, 2002
    Inventors: Donald W. Hansen, Ronald Keith Webber, Alok K. Awasthi, Pamela T. Manning
  • Amidino compound and salts thereof useful as nitric oxide synthase inhibitors
    Publication number: 20020019563
    Abstract: The present invention relates to S-[2-[(1-Iminoethyl)amino]ethyl]-2-methyl-L-cysteine, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: March 23, 2001
    Publication date: February 14, 2002
    Inventors: Ronald Keith Webber, Richard C. Durley, Alok K. Awasthi, Arija A. Bergmanis, Scott S. Ganser, Timothy J. Hagen, E. Ann Hallinan, Donald W. Hansen, Brian S. Hickory, Alan E. Moormann, Barnett S. Pitzele, Michelle A. Promo, Richard R. Schartman, Jeffrey S. Snyder, Mahima Trivedi, Sofya Tsymbalov
  • Imidazoles useful as nitric oxide synthase inhibitors
    Patent number: 6344473
    Abstract: 1,3-diazolino and 1,3-diazolidino heterocycle derivatives useful as nitric oxide synthase inhibitors.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: February 5, 2002
    Assignee: G.D. Searle & Co.
    Inventors: Donald W. Hansen, Jr., Arija A. Bergmanis, Timothy J. Hagen, E. Ann Hallinan, Steven W. Kramer, Suzanne Metz, Karen B. Peterson, Barnett S. Pitzele, Foe S. Tjoeng, Mihaly V. Toth, Mahima Trivedi, R. Keith Webber, Sofya Tsymbalov, Rolando E. Gapud
  • Process for the enzymatic resolution of lactams
    Publication number: 20010055798
    Abstract: A method of separating enantiomeric lactam esters. The lactam esters are contacted with a biocatalyst, such as an enzyme or a microorganism, in a solution wherein only one enantiomer is selectively hydrolyzed to give the optically active isomer of the corresponding acid. The hydrolysis product is then separated from the unreacted lactam esters. The enzyme is then recycled for reuse in the next enzymatic resolution. The undesired isomer is also racemized and reused in the next enzymatic resolution.
    Type: Application
    Filed: June 6, 2001
    Publication date: December 27, 2001
    Applicant: G.D. Searle & Co.
    Inventors: Donald W. Hansen, Mahima Trivedi, Rolando E. Gapud, John S. Ng, Alok K. Awasthi, Ping T. Wang