Patents by Inventor Stephanus Pudjijanto

Stephanus Pudjijanto 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).

  • Thin polymer film drug reservoirs
    Patent number: 6275728
    Abstract: The present invention relates to hydratable drug reservoir films for electrotransport drug delivery devices and to electrotransport drug delivery systems containing the hydratable drug reservoirs and to methods for manufacturing and using such systems. The hydratable reservoir films according to this invention are easily manufacturable and rapidly imbibe water and/or drug solution with good water retention and stability.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: August 14, 2001
    Assignee: ALZA Corporation
    Inventors: Subramanian S. Venkatraman, Eli J. Goldman, Lothar W. Kleiner, Stephanus Pudjijanto
  • Pharmaceutical hydrogel formulations, and associated drug delivery devices and methods
    Patent number: 6039977
    Abstract: Pharmaceutical hydrogel formulations containing polyvinyl alcohol are provided. The formulations may serve as rug reservoirs in electrotransport drug delivery systems or passive transdermal systems, or they may be used in a variety of other types of dosage forms, e.g., capsules, suppositories, aerosols, and the like. With these formulations, there is virtually no syneresis encountered upon long term storage, an advantage that derives from selecting the quantity of polyvinyl alcohol in the gel to correspond to the polymer's degree of hydrolysis.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: March 21, 2000
    Assignee: Alza Corporation
    Inventors: Subramanian S. Venkatraman, Thomas O. Murdock, Stephanus Pudjijanto