Patents by Inventor De Hwa Chao

De Hwa Chao 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).

  • Micronized Opioid Compositions, Formulations and Dosage Forms and Methods of Making Same
    Publication number: 20190167590
    Abstract: Novel compositions, formulations and dosage forms comprising stabilized micronized opioid particles are disclosed. Exemplary opioids include oxycodone, oxymorphone, hydrocodone, and hydromorphone, including as free bases or as salts. Stabilized micronized opioid particles having a DV90 particle size distribution of less and or equal to 10? or less than or equal to 20? are disclosed. Methods for micronizing an opioid to provide stabilized micronized opioid particles are also disclosed.
    Type: Application
    Filed: September 26, 2018
    Publication date: June 6, 2019
    Inventors: Michael Zamloot, Cherng-Chyi Fu, De-Hwa Chao, Andrei Blasko, Su Il Yum
  • Micronized opioid compositions having a specific particle size distribution
    Patent number: 9339463
    Abstract: Novel compositions, formulations and dosage forms comprising stabilized micronized opioid particles are disclosed. Exemplary opioids include oxycodone, oxymorphone, hydrocodone, and hydromorphone, including as free bases or as salts. Stabilized micronized opioid particles having a Dv90 particle size distribution of less and or equal to 10? or less than or equal to 20? are disclosed. Methods for micronizing an opioid to provide stabilized micronized opioid particles are also disclosed.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: May 17, 2016
    Inventors: Michael Zamloot, Cherng-chyi Fu, De-Hwa Chao, Andrei Blasko, Su Il Yum
  • MICRONIZED OPIOID COMPOSITIONS, FORMULATIONS AND DOSAGE FORMS AND METHODS OF MAKING SAME
    Publication number: 20090169631
    Abstract: Novel compositions, formulations and dosage forms comprising stabilized micronized opioid particles are disclosed. Exemplary opioids include oxycodone, oxymorphone, hydrocodone, and hydromorphone, including as free bases or as salts. Stabilized micronized opioid particles having a Dv90 particle size distribution of less and or equal to 10? or less than or equal to 20? are disclosed. Methods for micronizing an opioid to provide stabilized micronized opioid particles are also disclosed.
    Type: Application
    Filed: December 5, 2008
    Publication date: July 2, 2009
    Applicant: Pain Therapeutics, Inc.
    Inventors: Michael Zamloot, Cherng-chyi Fu, De-Hwa Chao, Andrei Blasko, Su ll Yum
  • DISSOLUTION TEST EQUIPMENT AND METHODS FOR TESTING
    Publication number: 20090165578
    Abstract: Dissolution test equipment (e.g., apparatus) and methods for testing are disclosed. Such methods and equipment may be advantageously used for testing of drug or active pharmaceutical ingredient (API) preparations, including drug formulations and dosage forms.
    Type: Application
    Filed: December 5, 2008
    Publication date: July 2, 2009
    Applicant: PAIN THERAPEUTICS, INC.
    Inventors: Michael Zamloot, Cherng-chyi Fu, De-Hwa Chao, Andrei Blasko
  • Compositions and methods for the prevention and treatment of oral mucositis
    Patent number: 6025326
    Abstract: The present invention provides methods and compositions suitable for treating oral mucositis in animals, including humans, with antimicrobial peptides such as protegrin peptides.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: February 15, 2000
    Assignee: IntraBiotics Pharmaceuticals, Inc.
    Inventors: Deborah A. Steinberg, De Hwa Chao, David J. Loury, Roger Cherng Fu, Chee Liang Gu, Conway C. Chang, John C. Fiddes