Patents by Inventor Nils W. Ahlgren

Nils W. Ahlgren 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).

  • Analgesic tablet compositions
    Patent number: 6284274
    Abstract: An opiate analgesic composition and a non-opiate analgesic composition are disclosed for delivering an analgesic in either embodiment to a patient in need of relief from pain. The analgesics are present optionally with a nonionic surfactant and with an osmotic composition comprising a carbonate or bicarbonate for delivering the opiate analgesic and non-opiate analgesic from a dosage form.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: September 4, 2001
    Assignee: Alza Corporation
    Inventors: Sonya Merrill, Atul D. Ayer, Paul M. Hwang, Anthony L. Kuczynski, Nils W. Ahlgren, Deborah J. Johnson
  • Controlled release tablet compositions
    Patent number: 6077538
    Abstract: An opiate analgesic composition and a non-opiate analgesic composition are disclosed for delivering an analgesic in either embodiment to a patient in need of relief from pain. The analgesics are present optionally with a nonionic surfactant and with an osmotic composition comprising a carbonate or bicarbonate for delivering the opiate analgesic and non-opiate analgesic from a dosage form.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: June 20, 2000
    Assignee: Alza Corporation
    Inventors: Sonya Merrill, Atul D. Ayer, Paul M. Hwang, Anthony L. Kuczynski, Nils W. Ahlgren, Deborah J. Johnson
  • Compositions containing opiate analgesics
    Patent number: 5948787
    Abstract: An opiate analgesic composition and a non-opiate analgesic composition are disclosed for delivering an analgesic in either embodiment to a patient in need of relief from pain. The analgesics are present optionally with a nonionic surfactant and with an osmotic composition comprising a carbonate or bicarbonate for delivering the opiate analgesic and non-opiate analgesic from a dosage form.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: September 7, 1999
    Assignee: Alza Corporation
    Inventors: Sonya Merrill, Atul D. Ayer, Paul M. Hwang, Anthony L. Kuczynski, Nils W. Ahlgren, Deborah J. Johnson