Patents by Inventor David E. Lawhorn

David E. Lawhorn 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).

  • Benzo(F)quinolinones
    Patent number: 5541190
    Abstract: This invention relates to hexa- and octahydrobenzo[f]quinolin-3-ones, pharmaceutical formulations containing those compounds and methods of their use as steroid 5.alpha.-reductase inhibitors.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: July 30, 1996
    Assignee: Eli Lilly and Company
    Inventors: James E. Audia, Kenneth S. Hirsch, Charles D. Jones, David E. Lawhorn, Loretta A. McQuaid, Leland O. Weigel
  • Benzo[f]quinolinones
    Patent number: 5495021
    Abstract: This invention relates to hexa- and octahydrobenzo[f]quinolin-3-ones, pharmaceutical formulations containing those compounds and methods of their use as steroid 5.alpha.-reductase inhibitors.
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: February 27, 1996
    Assignee: Eli Lilly and Company
    Inventors: James E. Audia, David E. Lawhorn, Leland O. Weigel
  • 6-heterocyclic-4-amino-1,3,4,5-tetrahydrobenz[CD]indoles
    Patent number: 5364856
    Abstract: 6-heterocyclic-4-amino-1,3,4,5-tetrahydrobenz[cd]indoles are provided which are useful in modifying the function of serotonin in mammals.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: November 15, 1994
    Assignee: Eli Lilly and Company
    Inventors: Richard N. Booher, David E. Lawhorn, Charles J. Paget, Jr., John M. Schaus
  • 6-heterocyclic-4-amino-1,2,2a,3,4,5-hexahydrobenz[cd]indoles
    Patent number: 5347013
    Abstract: 6-Heterocyclic-4-amino-l,2,2a,3,4,5-hexahydrobenz[cd]indoles are provided which are useful in modifying the function of serotonin in mammals.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: September 13, 1994
    Assignee: Eli Lilly and Company
    Inventors: Richard N. Booher, Michael E. Flaugh, David E. Lawhorn, Michael J. Martinelli, Charles J. Paget, Jr., John M. Schaus
  • Benzo[F]quinolinones
    Patent number: 5334767
    Abstract: This invention relates to hexa- and octahydrobenzo [f]quinolin-3-ones, pharmaceutical formulations containing those compounds and methods of their use as steroid 5.alpha.-reductase inhibitors.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: August 2, 1994
    Assignee: Eli Lilly and Company
    Inventors: James E. Audia, Kenneth S. Hirsch, Charles D. Jones, David E. Lawhorn, Loretta A. McQuaid, Leland O. Weigel
  • 6-heterocyclic-4-amino-1,3,4,5-tetrahydrobenz(cd)indoles and pharmaceutical use thereof
    Patent number: 5244912
    Abstract: 6-heterocyclic-4-amino-1,3,4,5-tetrahydrobenz[cd]indoles are provided which are useful in modifying the function of serotonin in mammals.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: September 14, 1993
    Assignee: Eli Lilly and Company
    Inventors: Richard N. Booher, David E. Lawhorn, Charles J. Paget, Jr., John M. Schaus
  • 6-heterocyclic-4-amino-1,2,2a,3,4,5-hexahydrobenz(cd)indoles and pharmaceutical use thereof
    Patent number: 5244911
    Abstract: 6-Heterocyclic-4-amino-1,2,2a,3,4,5-hexahydrobenz[cd]indoles are provided which are useful in modifying the function of serotonin in mammals.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: September 14, 1993
    Assignee: Eli Lilly and Company
    Inventors: Richard N. Booher, David E. Lawhorn, Michael J. Martinelli, Charles J. Paget, Jr., John M. Schaus
  • Process for the preparation of benzo (F) quinolinones
    Patent number: 5239075
    Abstract: This invention relates to a process for the preparation of hexa- and octahydrobenzo[f]quinolin-3-ones.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: August 24, 1993
    Assignee: Eli Lilly and Company
    Inventors: James E. Audia, David E. Lawhorn