Patents by Inventor Chau Levan

Chau Levan 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).

  • Substituted cinnamoyl-piperazine-pyridyl compound
    Patent number: 3940386
    Abstract: Compounds of the formula: ##EQU1## wherein X represents a carbonyl group C=O or a methylene group --CH.sub.2 --,R represents a phenyl, mono- or di-halophenyl or 2-pyridyl group,R.sub.1 represents a pyridyl or C.sub.3.sub.-7 -cycloalkyl group,R.sub.2 represents hydrogen, hydroxy or a C.sub.1.sub.-5 -alkyl group,R.sub.3 represents 1 to 3 groups which can be hydrogen, halogen, C.sub.1.sub.-3 -alkyl, methoxy or dioxymethylene,Q represents the (CH.sub.2).sub.n group, n having the value 0, 1, 2, 3, the --CH=CH--CH.sub.2 -- or --O--CH.sub.2 --CH.sub.2 -- group,Have analgesic, hypothermic and anti-depressant properties, accompanied by a weak psycholeptic action, anticonvulsive and slightly sedative properties, vasodilatory, spasmolytic, anti-bronchiospastic, anti-histaminic, anti-allergical, anti-emetical properties, and which increase the cerebral and myocardic bloodrate and -oxygenation.
    Type: Grant
    Filed: June 21, 1974
    Date of Patent: February 24, 1976
    Assignee: Cermol S.A.
    Inventors: Suzanne Szabo, Francois Molnar, Roland-Yves Mauvernay, Chau Levan, Peter Radanov Statkov, Danielle Straumann, Olga Lerik Milovanovic