Patents by Inventor Ramanujam Rajgopalan

Ramanujam Rajgopalan 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).

  • Method of blocking nerve conduction by treatment with branched-chain esters of 2-?4-(2-piperidine-ethoxy)-benzoyl!-benzoic acid and pharmaceutically acceptable salts thereof
    Patent number: 5821252
    Abstract: Compounds of the formula III ##STR1## in which R.sub.4 and R.sub.5 are CH.sub.3 amd R.sub.6 is hydrogen, have prolonged spasmolytic and anaesthetic activity.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 13, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Swati Bal-Tembe, Jurgen Blumbach, Alihussein Nomanbhai Dohadwalla, deceased, Bansi Lal, Narayan Sudhindra Punekar, Ramanujam Rajgopalan, Richard Helmut Rupp, Martin Bickel
  • Labdane derivatives, a process for their preparation, and their use as medicaments
    Patent number: 5093331
    Abstract: The present invention relates to polyoxygenated labdane-derivatives of the formula ##STR1## a process for their preparation and the use of these substances as medicaments, preferably as medicaments having a positive inotropic effect, an effect of lowering intraocular pressure and lowering blood pressure.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: March 3, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Bansi Lal, Ashok K. Gangopadbya, Alihussein N. Dohadwalla, Ramanujam Rajgopalan, Richard H. Rupp