Patents by Inventor Eli Hershkowitz

Eli Hershkowitz 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).

  • 1,5-Diazabicyclo [3.3.0.]octadienediones
    Patent number: 4499284
    Abstract: Compounds of the formulas: ##STR1## wherein R is independently branched or straight chain C.sub.1 -C.sub.4 alkyl; R.sub.1 is independently branched or straight chain C.sub.1 -C.sub.4 alkyl, phenyl or halo; R.sub.2 is independently branched or straight chain C.sub.1 -C.sub.17 alkyl wherein at least one R.sub.2 group has a bromo substituent on the carbon atom adjacent to the ring; and X is branched or straight chain C.sub.1 -C.sub.17 alkylidene wherein the ring carbon and the quaternary nitrogen are attached to the same carbon atom are useful as chemical labeling agents which react readily with free sulfhydryl groups or primary amino groups to produce intensely fluorescent (when compounds I and III are used) and phosphorescent (when compounds II and IV are used) substances.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: February 12, 1985
    Assignee: Tel Aviv University
    Inventors: Edward M. Kosower, Barak Pazhenchevsky, Eli Hershkowitz