Patents by Inventor Yolanda M. Puga

Yolanda M. Puga 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).

  • Method of fabricating a banded prolonged release active agent dosage form
    Publication number: 20040067300
    Abstract: The present invention is directed to an active agent dosage form and methods of its fabrication which is useful for the prolonged delivery of an active agent formulation to a fluid environment of use. The active agent dosage form is a matrix that has on its surface one or more insoluble bands located in complementary grooves. The invention is also directed to articles of manufacture, methods and systems for fabricating the active agent dosage form.
    Type: Application
    Filed: September 26, 2003
    Publication date: April 8, 2004
    Inventors: David E. Edgren, Patrick S.-L. Wong, Francisco Jao, Yolanda M. Puga
  • Method of fabricating a banded prolonged release active agent dosage form
    Publication number: 20020155155
    Abstract: The present invention is directed to an active agent dosage form and methods of its fabrication which is useful for the prolonged delivery of an active agent formulation to a fluid environment of use. The active agent dosage form is a matrix that has on its surface one or more insoluble bands located in complementary grooves. The invention is also directed to articles of manufacture, methods and systems for fabricating the active agent dosage form.
    Type: Application
    Filed: February 15, 2002
    Publication date: October 24, 2002
    Inventors: David E. Edgren, Patrick S. L. Wong, Francisco Jao, Yolanda M. Puga
  • Method of fabricating a banded prolonged release active agent dosage form
    Patent number: 6365183
    Abstract: The present invention is directed to an active agent dosage form and methods of its fabrication which is useful for the prolonged delivery of an active agent formulation to a fluid environment of use. The active agent dosage form is a matrix that has on its surface one or more insoluble bands located in complementary grooves. The invention is also directed to articles of manufacture, methods and systems for fabricating the active agent dosage form.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: April 2, 2002
    Assignee: ALZA Corporation
    Inventors: David E. Edgren, Patrick S.-L. Wong, Francisco Jao, Yolanda M. Puga
  • Process for the preparation of 5-aryl-2,4-dialkyl-3H-1,2,4-triazole-3-thiones
    Patent number: 5723624
    Abstract: The present invention relates to a a novel process for preparing 5-aryl-2,4-dialkyl-3H-1,2,4-triazole-3-thiones which have been shown to have antidepressant activity and are useful in the treatment of Wernicke-Korsakoff syndrome and Alzheimer's disease.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: March 3, 1998
    Assignee: Merrell Pharmaceuticals Inc
    Inventors: Sandra K. Stolz-Dunn, David H. Louks, Yolanda M. Puga, Christian T. Goralski