Patents by Inventor Lakshmina R. Subramanian

Lakshmina R. Subramanian 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).

  • Methylendioxyphenathrene and stilben derivatives, process for the preparation thereof, pharmaceutical compositions using these, and therapeutic applications
    Patent number: 5024743
    Abstract: The present invention provides compounds of the general formula: ##STR1## where R.sub.1 is a hydrogen atom or a methoxy or ethoxy radical and R.sub.2 and R.sub.3 are hydrogen atoms or R.sub.2 and R.sub.3 together represent an aromatic carbon-carbon bond and R.sub.1 is a hydrogen atom, a hydroxyl group or an ethoxy radical; and the pharmaceutically acceptable salts thereof.The present invention also provides processes for the preparation of these compounds and pharmaceutical compositions containing them, as well as their use in therapy.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: June 18, 1991
    Assignee: Madaus GmbH & Co.
    Inventors: Klaus Gorler, Gunter Krumbiegel, Michael Hanack, Lakshmina R. Subramanian
  • Methylendioxyphenathrene and stilben derivatives, process for the preparation thereof, pharmaceutical compositions using these, and therapeutic applications
    Patent number: 4835178
    Abstract: The present invention provides compounds of the general formula: ##STR1## wherein R.sub.1 is a hydrogen atom or a methoxy or ethoxy radical and R.sub.2 and R.sub.3 are hydrogen atoms or R.sub.2 and R.sub.3 together represent an aromatic carbon-carbon bond and R.sub.1 is a hydrogen atom, a hydroxyl group or an ethoxy radical; and the pharmaceutically acceptable salts thereof.The present invention also provides processes for the preparation of these compounds and pharmaceutical compositions containing them, as well as their use in therapy.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: May 30, 1989
    Assignee: Dr. Madaus & Co.
    Inventors: Klaus Gorler, Gunter Krumbiegel, Michael Hanack, Lakshmina R. Subramanian