Patents by Inventor Steven Espinal

Steven Espinal 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).

  • Dosage form comprising liquid formulation
    Patent number: 7803401
    Abstract: A sustained release dosage form includes a capsule made of a thermoplastic polymer having a softening point below 200° C. and an orifice formed or formable within the capsule, an emulsion formulation contained within the capsule, and an expandable composition within the capsule remote from the orifice. The emulsion formulation comprises a drug, an emulsifying surfactant, and an oil. The expandable composition is configured to expand and expel the emulsion formulation through the orifice.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: September 28, 2010
    Assignee: Encinal Pharmaceutical Investments, LLC
    Inventors: Liang-Chang Dong, Steven Espinal, Patrick S. L. Wong
  • DOSAGE FORM COMPRISING THERAPEUTIC FORMULATION
    Publication number: 20100159002
    Abstract: A dosage form is disclosed comprising a semipermeable walled container that houses a capsule, which capsule comprises a drug formulation, a piston, and an osmotic composition. The dosage form delivers the drug formulation through a passageway at a controlled rate over a sustained-release period of time up to 24 hours.
    Type: Application
    Filed: March 2, 2010
    Publication date: June 24, 2010
    Inventors: Liang-Chang Dong, Patrick S.L. Wong, Vincent Joseph Ferrari, Steven Espinal
  • Dosage Form Comprising Therapeutic Formulation
    Publication number: 20090130204
    Abstract: A dosage form is disclosed comprising a semipermeable walled container that houses a capsule, which capsule comprises a drug formulation, a piston, and an osmotic composition. The dosage form delivers the drug formulation through a passageway at a controlled rate over a sustained-release period of time up to 24 hours.
    Type: Application
    Filed: January 23, 2009
    Publication date: May 21, 2009
    Applicant: ENCINAL PHARMACEUTICAL INVESTMENT INC.
    Inventors: Liang-Chang Dong, Patrick S.L. Wong, Vincent Joseph Ferrari, Steven Espinal
  • Dosage Form Comprising Therapeutic Formulation
    Publication number: 20080181944
    Abstract: A dosage form is disclosed comprising a semipermeable walled container that houses a capsule, which capsule comprises a drug formulation, a piston, and an osmotic composition. The dosage form delivers the drug formulation through a passageway at a controlled rate over a sustained-release period of time up to 24 hours.
    Type: Application
    Filed: April 2, 2008
    Publication date: July 31, 2008
    Applicant: ALZA CORPORATION
    Inventors: Liang-Chang Dong, Patrick S.L. Wong, Vincent Joseph Ferrari, Steven Espinal
  • Dosage form comprising liquid formulation
    Publication number: 20070048368
    Abstract: A sustained release dosage form includes a capsule made of a thermoplastic polymer having a softening point below 200° C. and an orifice formed or formable within the capsule, an emulsion formulation contained within the capsule, and an expandable composition within the capsule remote from the orifice. The emulsion formulation comprises a drug, an emulsifying surfactant, and an oil. The expandable composition is configured to expand and expel the emulsion formulation through the orifice.
    Type: Application
    Filed: October 30, 2006
    Publication date: March 1, 2007
    Applicant: ALZA Corporation
    Inventors: Liang-Chang Dong, Steven Espinal, Patrick Wong
  • Dosage form comprising liquid formulation
    Patent number: 7147867
    Abstract: A dosage form is disclosed comprising a drug formulation that self-emulsifies in the drug formulation.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: December 12, 2006
    Assignee: Alza Corporation
    Inventors: Liang-Chang Dong, Steven Espinal, Patrick S. L. Wong
  • Dosage form comprising therapeutic formulation
    Publication number: 20030157163
    Abstract: A dosage form is disclosed comprising a semipermeable walled container that houses a capsule, which capsule comprises a drug formulation, a piston, and an osmotic composition. The dosage form delivers the drug formulation through a passageway at a controlled rate over a sustained-release period of time up to 24 hours.
    Type: Application
    Filed: February 24, 2003
    Publication date: August 21, 2003
    Inventors: Liang-Chang Dong, Patrick S.L. Wong, Vincent Joseph Ferrari, Steven Espinal
  • Dosage form comprising therapeutic formulation
    Patent number: 6551613
    Abstract: A dosage form is disclosed comprising a semipermeable walled container that houses a capsule, which capsule comprises a drug formulation, a piston, and an osmotic composition. The dosage form delivers the drug formulation through a passageway at a controlled rate over a sustained-release period of time up to 24 hours.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: April 22, 2003
    Assignee: Alza Corporation
    Inventors: Liang-Chang Dong, Patrick S. L. Wong, Vincent Joseph Ferrari, Steven Espinal
  • Dosage form comprising liquid formulation
    Publication number: 20010001280
    Abstract: A dosage form is disclosed comprising a drug formulation that self-emulsifies in said dosage form.
    Type: Application
    Filed: December 19, 2000
    Publication date: May 17, 2001
    Inventors: Liang-Chang Dong, Steven Espinal, Patrick S.L. Wong
  • Dosage form comprising liquid formulation
    Patent number: 6174547
    Abstract: A dosage form is disclosed comprising a drug formulation that self-emulsifies in said dosage form.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: January 16, 2001
    Assignee: ALZA Corporation
    Inventors: Liang-Chang Dong, Steven Espinal, Patrick S. L. Wong
  • Progesterone replacement therapy
    Patent number: 5770227
    Abstract: A hormone replacement composition, a hormone replacement dosage form, and a method of hormone replacement are disclosed and indicated for the management of hormone replacement therapy.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: June 23, 1998
    Assignee: Alza Corporation
    Inventors: Liang C. Dong, Patrick S. L. Wong, Steven Espinal
  • Progesterone replacement therapy
    Patent number: 5633011
    Abstract: A hormone replacement composition, a hormone replacement dosage form, and a method of hormone replacement are disclosed and indicated for the management of hormone replacement therapy.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: May 27, 1997
    Assignee: ALZA Corporation
    Inventors: Liang C. Dong, Patrick S.-L. Wong, Steven Espinal
  • Progestin tablet
    Patent number: 5620705
    Abstract: A hormone replacement composition, a hormone replacement dosage form, and a method of hormone replacement are disclosed and indicated for the management of hormone replacement therapy.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: April 15, 1997
    Assignee: ALZA Corporation
    Inventors: Liang C. Dong, Patrick S.-L. Wong, Steven Espinal