Patents by Inventor Len F. Lee

Len F. Lee 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: 5916905
    Abstract: A class of substituted pyridyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula II wherein R.sup.1 is selected from hydrido, halo, alkoxy, haloalkoxy, aryl, alkylthio, alkylamino, aralkoxy, azido and alkenyloxy; wherein R.sup.2 is selected from hydrido, cyano, hydroxyalkyl, haloalkyl, aminoalkyl, alkylaminoalkyl, alkylcarbonyloxyalkyl, aminocarbonyl and alkylcarbonylaminoalkyl; and wherein R.sup.5 and R.sup.6 are one or more radicals independently selected from halo, alkylsulfonyl, aminosulfonyl, alkoxy and alkylthio; provided one of R.sup.5 and R.sup.6 is substituted with alkylsulfonyl, aminosulfonyl, or haloalkylsulfonyl; or a pharmaceutically-acceptable salt thereof.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: June 29, 1999
    Assignee: G. D. Searle & Co.
    Inventors: Richard M Weier, Len F Lee, Richard A Partis, Francis J Koszyk
  • Patent number: 5854234
    Abstract: The current invention discloses useful pharmaceutical compositions containing azepine derivatives useful as nitric oxide synthase inhibitors.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 29, 1998
    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
  • Patent number: 5773389
    Abstract: Disclosed herein are herbicidal pyridine compounds substituted at the 3- and/or 5-position with a carboxylic acid-derived heterocyclic moiety, as well as herbicidal compositions and use of these compounds.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: June 30, 1998
    Assignee: Rohm and Haas Company
    Inventors: Yuen-Lung Lawrence Sing, Len F. Lee
  • Patent number: 5756530
    Abstract: A class of pyrazolyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula II: ##STR1## wherein R.sup.1 is selected from hydrido, alkyl, alkenyl, aralkyl, alkynyl, cyanoalkyl, carboxyalkyl, aminocarbonylalkyl, arylaminocarbonylalkyl, heterocyclicalkyl, and alkoxycarbonylalkyl; wherein R.sup.3 is aryl substituted at a substitutable position with halo; wherein R.sup.4 is selected from hydrido and haloalkyl; and wherein R.sup.5 is selected from alkyl and amino; or a pharmaceutically-acceptable salt or prodrug thereof.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: May 26, 1998
    Assignee: G. D. Searle & Co.
    Inventors: Len F. Lee, Thomas D. Penning, Steven W. Kramer
  • Patent number: 5719163
    Abstract: A class of substituted oxazolyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula I: ##STR1## wherein R is selected from alkyl, hydroxyalkyl, haloalkyl, cycloalkyl, cycloalkylalkyl, aryl optionally substituted at a substitutable position by carboxy, alkyl, alkoxy and halo, aralkyl optionally substituted at a substitutable position on the aryl radical by carboxy, alkyl, alkoxy and halo, aryloxyalkyl optionally substituted at a substitutable position on the aryl radical with halo, carboxy, alkyl and alkoxy, aralkoxyalkyl optionally substituted at a substitutable position by alkyl, carboxy, alkoxy and halo, heteroaryloxyalkyl optionally substituted at a substitutable position with halo, carboxy, alkyl and alkoxy, alkoxycarbonylalkyl, carboxyalkyl and aminocarbonylalkyl; wherein R.sup.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: February 17, 1998
    Assignee: G.D. Searle & Co.
    Inventors: Bryan H. Norman, Len F. Lee, Jaime L. Masferrer, John J. Talley
  • Patent number: 5686470
    Abstract: A class of substituted pyridyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula II ##STR1## wherein R.sup.1 is selected from hydrido, halo, alkoxy, haloalkoxy, aryl, alkylthio, alkylamino, aralkoxy, azido and allyloxy; wherein R.sup.2 is selected from hydrido, cyano, hydroxyalkyl, haloalkyl, aminoalkyl, aminocarbonyl and alkylcarbonylaminoalkyl; and wherein R.sup.5 and R.sup.6 are one or more radicals independently selected from halo, alkylsulfonyl, aminosulfonyl, alkoxy and alkylthio; provided one of R.sup.5 and R.sup.6 is substituted with alkylsulfonyl, aminosulfonyl, or haloalkylsulfonyl; or a pharmaceutically-acceptable salt thereof.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: November 11, 1997
    Inventors: Richard M. Weier, Len F. Lee, Richard A. Partis, Francis J. Koszyk
  • Patent number: 5639777
    Abstract: A class of 1,4,5-triphenyl pyrazoles is described for the treatment of inflammation, including treatment of pain and disorders such as arthritis. Compounds of particular interest are of Formula II ##STR1## wherein R.sup.1 is selected from the group hydrido, halo, alkyl, alkylthio, alkylsulfinyl, alkylsulfonyl, nitro, amino, N-monoalkylamino, N,N-dialkylamino, acylamino, acylaminoalkyl, haloalkyl, hydroxy and alkoxy; wherein R.sup.2 is selected from hydrido, alkyl, cyano and haloalkyl; wherein R.sup.3 is selected from the group hydrido, halo, alkyl, alkylthio, alkylsulfinyl, alkylsulfonyl, nitro, amino, N-monoalkylamino, N,N-dialkylamino, acylamino, acylaminoalkyl, haloalkyl, hydroxy and alkoxy; and wherein R.sup.4 is alkyl or amino; or a pharmaceutically-acceptable salt thereof.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: June 17, 1997
    Assignee: G.D. Searle & Co.
    Inventor: Len F. Lee
  • Patent number: 5596008
    Abstract: A class of substitute pyridyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula I ##STR1## wherein R.sup.1 is haloalkyl; wherein R.sup.2 is aryl optionally substituted at a substitutable position with one or more radicals independently selected from alkylsulfinyl, alkyl, cyano, carboxyl, alkoxycarbonyl, haloalkyl, hydroxyl, hydroxyalkyl, haloalkoxy, amino, alkylamino, arylamino, nitro, halo, alkoxy and alkylthio; wherein R.sup.3 is aryl substituted at a substitutable position with a radical selected from alkylsulfonyl and sulfamyl; and wherein R.sup.4 is selected from halo, alkoxy and alkynyloxy; or a pharmaceutically-acceptable salt thereof.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: January 21, 1997
    Assignee: G. D. Searle & Co.
    Inventor: Len F. Lee
  • Patent number: 5580985
    Abstract: A class of pyrazolyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula II: ##STR1## wherein R.sup.1 is selected from hydrido, alkyl, alkenyl, aralkyl, alkynyl, cyanoalkyl, carboxyalkyl, aminocarbonylalkyl, arylaminocarbonylalkyl, heterocyciicalkyl, and alkoxycarbonylalkyl; wherein R.sup.3 is aryl substituted at a substitutable position with halo; wherein R.sup.4 is selected from hydrido and haloalkyl; and wherein R.sup.5 is selected from alkyl and amino; or a pharmaceutically-acceptable salt or prodrug thereof.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: December 3, 1996
    Assignee: G. D. Searle & Co.
    Inventors: Len F. Lee, Thomas D. Penning, Steven W. Kramer
  • Patent number: 5512536
    Abstract: Disclosed herein are herbicidal pyridine compounds substituted at the 2- or 6-position with an OR.sub.2 moiety where R.sub.2 is hydrogen, lower alkyl, halomethyl, lower cyanoalkyl, alkenyl or alkynyl, as well as herbicidal compositions and herbicidal use of these compounds.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: April 30, 1996
    Assignee: Rohn and Haas Company
    Inventors: Donald E. Korte, Len F. Lee
  • Patent number: 5486534
    Abstract: A class of pyrazolyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula II: ##STR1## wherein R.sup.1 is selected from hydrido, alkyl, alkenyl, aralkyl, alkynyl, cyanoalkyl, carboxyalkyl, aminocarbonylalkyl, arylaminocarbonylalkyl, heterocyclicalkyl, and alkoxycarbonylalkyl; wherein R.sup.3 is aryl substituted at a substitutable position with halo; wherein R.sup.4 is selected from hydrido and haloalkyl; and wherein R.sup.5 is selected from alkyl and amino; or a pharmaceutically-acceptable salt or prodrug thereof.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: January 23, 1996
    Assignee: G. D. Searle & Co.
    Inventors: Len F. Lee, Thomas D. Penning, Steven W. Kramer
  • Patent number: 5475018
    Abstract: A class of 1,5-diphenyl pyrazoles is described for the treatment of inflammation, including treatment of pain and disorders such as arthritis. Compounds of particular interest are of Formula I ##STR1## wherein R.sup.1 is methylsulfonyl; wherein R.sup.2 is selected from --CF.sub.3, --CF.sub.2 Cl, --CF.sub.2 H, --CF.sub.2 CF.sub.3 and --CF.sub.2 CF.sub.2 CF.sub.3 ; and wherein R.sup.3 is fluoro or chloro; or a pharmaceutically-acceptable salt thereof.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: December 12, 1995
    Assignee: G. D. Searle & Co.
    Inventors: Len F. Lee, Stephen R. Bertenshaw
  • Patent number: 5424274
    Abstract: Disclosed herein are herbicidal pyridine compounds substituted at the 3- and/or 5-position with a carboxylic acid-derived heterocyclic moiety, as well as herbicidal compositions and use of these compounds.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: June 13, 1995
    Assignee: Rohm and Haas Company
    Inventors: Yuen-Lung L. Sing, Len F. Lee
  • Patent number: 5401765
    Abstract: A class of 1,4,5-triphenyl pyrazoles is described for the treatment of inflammation, including treatment of pain and disorders such as arthritis. Compounds of particular interest are of Formula I ##STR1## wherein R.sup.1 is one or more groups independently selected from hydrido, methyl, ethyl, methoxy, ethoxy, methylthio, methylsulfinyl, methylsulfonyl, hydroxy, nitro, amino, N-methylamino, acetamido, trifluoromethyl, bromo, iodo, fluoro and chloro; wherein R.sup.2 is selected from hydrido, methyl, ethyl, cyano, trifluoromethyl, difluorochloromethyl, difluoromethyl, pentafluoroethyl and heptafluoropropyl; wherein R.sup.3 is one or more groups independently selected from hydrido, methyl, ethyl, methoxy, ethoxy, methylthio, methylsulfinyl, methylsulfonyl, hydroxy, nitro, amino, N-methylamino, acetamido, trifluoromethyl, bromo, iodo, fluoro and chloro; and wherein R.sup.4 is methyl; or a pharmaceutically-acceptable salt thereof.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: March 28, 1995
    Assignee: G. D. Searle
    Inventor: Len F. Lee
  • Patent number: 5391540
    Abstract: Disclosed herein are herbicidal pyridine compounds substituted at the 2- or 6-position with an OR.sub.2 moiety where R.sub.2 is hydrogen, lower alkyl, halomethyl, lower cyanoalkyl, alkenyl or alkynyl, as well as herbicidal compositions and herbicidal use of these compounds.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: February 21, 1995
    Assignee: Rohm and Haas Company
    Inventors: Donald E. Korte, Len F. Lee
  • Patent number: 5380699
    Abstract: The present invention provides novel herbicidal pyridines characterized by having in the 3- or 5-position an aliphatic or aromatic 1-ketone.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: January 10, 1995
    Assignee: Rohm and Haas Company
    Inventors: Len F. Lee, Yuen-Lung L. Sing, Sai C. Wong
  • Patent number: 5380738
    Abstract: 2-Substituted-4-(4-fluorophenyl)-5-(4-(methylsulfonyl)phenyl)oxazoles or 2-substituted-5-(4-fluorophenyl)-4-(4-(methylsulfonyl)phenyl)oxazoles and derivatives thereof are found to posses significant antiinflammatory activity, especially useful for the treatment of arthritis without deleterious side effects.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: January 10, 1995
    Assignee: Monsanto Company
    Inventors: Bryan H. Norman, Len F. Lee, Jaime L. Masferrer, John J. Talley
  • Patent number: 5298479
    Abstract: The present invention provides novel herbicidal pyridines characterized by having in the 3- or 5-position an aliphatic or aromatic 1-ketone.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: March 29, 1994
    Assignee: Monsanto Company
    Inventors: Len F. Lee, Yuen-Lung L. Sing, Sai C. Wong
  • Patent number: 5260262
    Abstract: The present invention provides novel herbicidal pyridines characterized by having in the 3- or 5-position an aliphatic or aromatic 1-ketone.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: November 9, 1993
    Assignee: Monsanto Company
    Inventors: Len F. Lee, Yuen-Lung L. Sing, Sai C. Wong
  • Patent number: 5228897
    Abstract: Disclosed herein are herbicidal pyridine compounds substituted at the 2- or 6-position with an OR.sub.2 moiety where R.sub.2 is hydrogen, lower alkyl, halomethyl, lower cyanoalkyl, alkenyl or alkynyl, as well as herbicidal compositions and herbicidal use of these compounds.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: July 20, 1993
    Assignee: Monsanto Company
    Inventors: Donald E. Korte, Len F. Lee