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).

  • Amidino compounds useful as nitric oxide synthase inhibitors
    Patent number: 7196118
    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: Grant
    Filed: January 10, 2005
    Date of Patent: March 27, 2007
    Assignee: Pharmacia Corporation
    Inventors: Ronald Keith Webber, Richard C. Durley, Alok K. Awasthi, Arija A. Bergmanis, Kam F. Fok, Scott S. Ganser, Timothy J. Hagen, E. Ann Hallinan, Donald W. Hansen, Jr., 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
  • Methods of making amidino compounds useful as nitric oxide synthase inhibitors
    Patent number: 7102013
    Abstract: Method of making an alpha-amino acid compound having the structure of Formula 32: comprising treating under hydrolyzing conditions a hydantoin compound having the structure of Formula 33: where the substituents are described herein.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: September 5, 2006
    Assignee: Pharmacia Corporation
    Inventors: Ronald Keith Webber, Richard C. Durley, Alok K. Awasthi, Arija A. Bergmanis, Kam F. Fok, Scott S. Ganser, Timothy J. Hagen, E. Ann Hallinan, Donald W. Hansen, Jr., 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-alkyl-4 hexenoic and hexynoic acid derivatives useful as nitric oxide synthase inhibitors
    Patent number: 7005450
    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: Grant
    Filed: April 7, 2004
    Date of Patent: February 28, 2006
    Assignee: Pharmacia Corporation
    Inventors: Richard C. Durley, James Sikorski, Donald W. Hansen, Jr., Michelle A. Promo, Ronald Keith Webber, Barnett S. Pitzele, Alok K. Awasthi, Alan Moormann
  • 2-amino-2-alkyl-5 heptenoic and heptynoic acid derivatives useful as nitric oxide synthase inhibitors
    Patent number: 6951889
    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: Grant
    Filed: September 15, 2001
    Date of Patent: October 4, 2005
    Assignee: Pharmacia Corporation
    Inventors: Donald W. Hansen, Jr., 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
  • Amidino compounds useful as nitric oxide synthase inhibitors
    Patent number: 6914158
    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: Grant
    Filed: April 1, 2004
    Date of Patent: July 5, 2005
    Assignee: Pharmacia Corporation
    Inventors: Ronald Keith Webber, Richard C. Durley, Alok K. Awasthi, Arija A. Bergmanis, Kam F. Fok, Scott S. Ganser, Timothy J. Hagen, E. Ann Hallinan, Donald W. Hansen, Jr., 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-alkyl-3 hexenoic and hexynoic acid derivatives useful as nitric oxide synthase inhibitors
    Patent number: 6828456
    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: Grant
    Filed: September 15, 2001
    Date of Patent: December 7, 2004
    Assignee: Pharmacia Corporation
    Inventors: Donald W. Hansen, Jr., Ronald Keith Webber
  • 2-amino-2-alkyl-4 hexenoic and hexynoic acid derivatives useful as nitric oxide synthase inhibitors
    Publication number: 20040192779
    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: April 7, 2004
    Publication date: September 30, 2004
    Inventors: Richard C. Durley, James Sikorski, Donald W. Hansen, Michelle A. Promo, Ronald Keith Webber, Barnett S. Pitzele, Alok K. Awasthi, Alan Moormann
  • Amidino compounds useful as nitric oxide synthase inhibitors
    Publication number: 20040186178
    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: April 1, 2004
    Publication date: September 23, 2004
    Applicant: Pharmacia Corporation
    Inventors: Ronald Keith Webber, Richard C. Durley, Alok K. Awasthi, Arija A. Bergmanis, 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 Tsymabalov, Foe Siong Tjoeng
  • Hydroxamic acid and amide compounds and their use as protease inhibitors
    Publication number: 20040167182
    Abstract: This invention is directed generally to hydroxamic acid and amide compounds (including salts of such compounds), and, more particularly, to aryl- and heteroaryl-arylsulfonylmethyl hydroxamic acids and amides that, inter alia, inhibit protease activity, particularly matrix metalloproteinase (also known as “matrix metalloprotease” or “MMP”) activity and/or aggrecanase activity.
    Type: Application
    Filed: June 25, 2003
    Publication date: August 26, 2004
    Inventors: Daniel P. Becker, Yiyuan Chen, John N. Freskos, Alan F. Gasiecki, Margaret L. Grapperhaus, Donald W. Hansen, Robert M. Heintz, Darren J. Kassab, Ish K. Khanna, Stephen A. Kolodziej, Sergio Mantegani, Mark A. Massa, Joseph J. McDonald, Deborah A. Mischke, Mark A. Nagy, Ettore Perrone, Joseph G. Rico, Michelle A. Schmidt, Dale P. Spangler, John J. Talley, Mahima Trivedi, Thomas A. Wynn
  • Pyrrolo[1,2-b][1,2,4]oxadiazine diones useful as nitric oxide synthase inhibitors
    Patent number: 6774126
    Abstract: Pyrrolo[1,2-b][1,2,4]oxadiazine-2,3(6H)-diones having the formula: or pharmaceutically acceptable salts thereof, useful as nitric oxide synthase inhibitors wherein each substituent is defined herein.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: August 10, 2004
    Assignee: Pharmacia Corporation
    Inventors: Donald W. Hansen, Jr., E. Ann Hallinan, Alok K. Awasthi, Suzanne Metz, Jeffrey A. Scholten, Jeffery S. Snyder, Mihaly V. Toth, Ronald Keith Webber
  • Heteroarylsulfonylmethyl hydroxamic acids and amides and their use as protease inhibitors
    Publication number: 20040142979
    Abstract: This invention is directed generally to heteroarylsulfonylmethyl hydroxamic acids and amides that, inter alia, tend to inhibit protease activity, particularly matrix metalloproteinase (also known as “matrix metalloprotease” or “MMP”) activity and/or aggrecanase activity. This invention also is directed to compositions of such compounds; intermediates for the syntheses of such compounds; methods for making such compounds; and methods for treating conditions associated with MMP, tumor necrosis factors (or “TNFs”), and/or aggrecanase activity, particularly pathological conditions.
    Type: Application
    Filed: November 25, 2003
    Publication date: July 22, 2004
    Inventors: Daniel P. Becker, Jeffery N. Carroll, Yvette M. Fobian, Margaret L. Grapperhaus, Donald W. Hansen, Robert M. Heintz, Darren J. Kassab, Mark A. Massa, Joseph J. McDonald, Mark A. Nagy, Barnett S. Pitzele, Joseph G. Rico, Michelle A. Schmidt, Dale P. Spangler
  • 2-amino-2-alkyl-4 hexenoic and hexynoic acid derivatives useful as nitric oxide synthase inhibitors
    Patent number: 6756406
    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: Grant
    Filed: September 15, 2001
    Date of Patent: June 29, 2004
    Assignee: Pharmacia Corporation
    Inventors: Richard C. Durley, James Sikorski, Donald W. Hansen, Jr., Michelle A. Promo, Ronald Keith Webber, Barnett S. Pitzele, Alok K. Awasthi, Alan Moorman
  • Pyrrolo[1,2-b][1,2,4]oxadiazine diones useful as nitric oxide synthase inhibitors
    Publication number: 20040019019
    Abstract: The current invention discloses useful bicyclic and tricyclic amidino derivative compounds, pharmaceutical compositions containing these novel compounds, and to their use as nitric oxide synthase inhibitors.
    Type: Application
    Filed: October 7, 2002
    Publication date: January 29, 2004
    Inventors: Donald W. Hansen, E. Ann Hallinan, Alok K. Awasthi, Suzanne Metz, Jeffrey A. Scholten, Jeffery S. Snyder, Mihaly V. Toth, Ronald Keith Webber
  • Process for the enzymatic resolution of lactams
    Patent number: 6638758
    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: Grant
    Filed: June 6, 2001
    Date of Patent: October 28, 2003
    Assignee: G.D. Searle & Co.
    Inventors: Donald W. Hansen, Jr., Mahima Trivedi, Rolando E. Gapud, John S. Ng, Alok K. Awasthi, Ping T. Wang
  • Methods of making amidino compounds useful as nitric oxide synthase inhibitors
    Publication number: 20030199701
    Abstract: A method of making an alpha-amino acid compound having the structure of Formula 32: 1
    Type: Application
    Filed: December 17, 2002
    Publication date: October 23, 2003
    Applicant: Pharmacia Corporate
    Inventors: Ronald Keith Webber, Richard C. Durley, Alok K. Awasthi, Arija A. Bergmanis, 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
  • Halogenated 2-amino-3, 4 heptenoic acid derivatives useful as nitric oxide synthase inhibitors
    Patent number: 6586471
    Abstract: The present invention contains halogenated 2-amino-3,4 heptenoic acid derivatives useful as nitric oxide synthase inhibitors.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: July 1, 2003
    Assignee: G. D. Searle
    Inventors: Donald W. Hansen, Jr., Barnett S. Pitzele, Ronald Keith Webber, Mihaly V. Toth, Pamela T. Manning, Alok K. Awasthi, Mahima Trivedi
  • Amidino compounds useful as nitric oxide synthase inhibitors
    Patent number: 6586474
    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: Grant
    Filed: March 23, 2001
    Date of Patent: July 1, 2003
    Assignee: Pharmacia Corporation
    Inventors: Ronald Keith Webber, Richard C. Durley, Alok K. Awasthi, Arija A. Bergmanis, Kam F. Fok, Scott S. Ganser, Timothy J. Hagen, E. Ann Hallinan, Donald W. Hansen, Jr., 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
  • Hydroxyamidino derivatives useful as nitric oxide synthase inhibitors
    Patent number: 6576780
    Abstract: The current invention discloses hydroxyamidino derivatives useful as nitric oxide synthase inhibitors.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: June 10, 2003
    Assignee: GD Searle & Company
    Inventors: Rolando E. Gapud, Timothy J. Hagen, E. Ann Hallinan, Donald W. Hansen, Jr., Barnett S. Pitzele, Suzanne S. Metz, R. Keith Webber, Foe S. Tjoeng, Robert E. Manning, Mihaly V. Toth
  • Pyrrolo[2,1-c][1,2,4] thiadiazoles and Pyrollo[2,1-c][1,12,4]oxadiazoles useful as nitric oxide synthase inhibitors
    Patent number: 6552052
    Abstract: Pyrrolo[2,1-c][1,2,4]thiadiazole or pyrollo[2,1-c][1,2,4]oxadiazoles having the formula: or pharmaceutically acceptable salts thereof, useful as nitric oxide synthase inhibitors wherein each substituent is defined herein.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: April 22, 2003
    Assignee: Monsanto/G.D. Searle
    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
  • 2-amino-5, 6 heptenoic acid derivatives useful as nitric oxide synthase inhibitors
    Patent number: 6545170
    Abstract: The present invention contains novel compounds useful as nitric oxide synthase inhibitors.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: April 8, 2003
    Assignee: Pharmacia Corporation
    Inventors: Barnett S. Pitzele, James A. Sikorski, Donald W. Hansen, Jr., Ronald Keith Webber, Mihaly V. Toth, Jeffrey A. Scholten, Jeffrey S. Snyder