Patents by Inventor Samuel B. Stoopak

Samuel B. Stoopak 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).

  • Gastrointestinal protective coating formulations
    Patent number: 4871546
    Abstract: Tablet formulations for the diffusable release of drugs in the gastrointestinal tract, which formulations protect the gastric mucosa from the effects of solid, gastric irritating drugs. The formulation comprises a drug tablet core, coated with a water permeable, gastrointestinal fluid insoluble polymeric coating, e.g., polymethyl methacrylate, polyethylene glycol polyvinylacetate, diethylphthalate and dioctyl sodium sulfosuccinate.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: October 3, 1989
    Assignee: Sandoz Pharm. Corp.
    Inventors: Dennis R. Feltz, Saul S. Kornblum, Samuel B. Stoopak
  • Soft gelatin capsule with a liquid ergot alkaloid center fill solution and method of preparation
    Patent number: 4366145
    Abstract: A stable ergot alkaloid soft gelatin capsule consisting essentially of a soft gelatin capsule shell and encapsulated therein a liquid center fill solution consisting essentially of a therapeutically effective amount of an ergot alkaloid of the formula ##STR1## wherein R.sub.1 is hydrogen or halogen,R.sub.2 is hydrogen or C.sub.1-4 alkyl,R.sub.3 is isopropyl, sec.-butyl, isobutyl or benzyl,R.sub.4 is methyl, ethyl or isopropyl, and eitherR.sub.5 is hydrogen andR.sub.6 is hydrogen or methoxy orR.sub.5 and R.sub.6 together is an additional bond,or mixtures thereof, dissolved in a pharmaceutically acceptable polar, hydrophilic soft gelatin capsule center fill solvent.
    Type: Grant
    Filed: June 24, 1981
    Date of Patent: December 28, 1982
    Assignee: Sandoz, Inc.
    Inventors: Samuel B. Stoopak, Saul S. Kornblum, Allen L. Jacobs
  • Sustained release tablet formulations
    Patent number: 4012498
    Abstract: This invention provides controlled, e.g., sustained release of drugs from medicament formulations containing a plurality of medicaments, wherein a desirable release pattern is maintained for both low concentration and high concentration drugs of the formulation.
    Type: Grant
    Filed: February 19, 1976
    Date of Patent: March 15, 1977
    Assignee: Sandoz, Inc.
    Inventors: Saul S. Kornblum, Samuel B. Stoopak