Patents by Inventor Jean R. Quelet

Jean R. Quelet 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).

  • 8-Amino-theophylline derivatives and therapeutic applications thereof
    Patent number: 4073908
    Abstract: This invention relates to 8-amino-theophylline derivatives having the formula: ##STR1## in which A is a straight- or branched-chain lower alkylene radical; B is a straight- or branched-chain lower alkylene radical; X and Y, which may be the same or different, are each hydrogen, lower alkyl or phenoxy alkylene; R represents a halogen atom, an alkyl group having 1-6 carbon atoms, an alkoxy group having 1-6 carbon atoms or a trifluoromethyl group; R' represents a hydrogen atom, a halogen atom, an alkyl group having 1-6 carbon atoms, an alkoxy group having 1-6 carbon atoms or a trifluoromethyl group, and their acid addition salts with inorganic or organic acids.Said new derivatives have a psychotropic activity.
    Type: Grant
    Filed: March 10, 1976
    Date of Patent: February 14, 1978
    Assignee: Laboratoire le Brun S.A.
    Inventor: Jean R. Quelet