Patents Assigned to Robert M. Stern
  • Timed-release aspirin
    Patent number: 4025613
    Abstract: A method for making multi-layer aspirin tablets including a timed-release layer by coating particles of standard aspirin prior to tabletting with an organic solvent solution containing cellulose acetate phthalate and a plasticizer and pressing together separate layers of the thus-coated aspirin and standard uncoated aspirin into a double-layer tablet.
    Type: Grant
    Filed: June 25, 1975
    Date of Patent: May 24, 1977
    Assignees: Richard G. Powers, Michael G. Guy, James F. Stern, Robert M. Stern
    Inventors: Michael G. Guy, Richard G. Powers