Patents by Inventor Julian B. Lo

Julian B. Lo 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).

  • Patent number: 8703196
    Abstract: A pharmaceutical composition comprises a dispersion comprising a low-solubility drug and a matrix combined with a concentration-enhancing polymer. At least a major portion of the drug is amorphous in the dispersion. The compositions improve the stability of the drug in the dispersion, and/or the concentration of drug in a use environment.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: April 22, 2014
    Assignee: Bend Research, Inc.
    Inventors: Walter C. Babcock, William J. Curatolo, Dwayne T. Friesen, Rodney J. Ketner, Julian B. Lo, James A. S. Nightingale, Ravi M. Shanker, James B. West
  • Publication number: 20120295988
    Abstract: A pharmaceutical composition comprises a dispersion comprising a low-solubility drug and a matrix combined with a concentration-enhancing polymer. At least a major portion of the drug is amorphous in the dispersion. The compositions improve the stability of the drug in the dispersion, and/or the concentration of drug in a use environment.
    Type: Application
    Filed: July 31, 2012
    Publication date: November 22, 2012
    Inventors: Walter C. Babcock, William J. Curatolo, Dwayne T. Friesen, Rodney J. Ketner, Julian B. Lo, James A. S. Nightingale, Ravi M. Shanker, James B. West
  • Patent number: 8236328
    Abstract: A pharmaceutical composition comprises a dispersion comprising a low-solubility drug and a matrix combined with a concentration-enhancing polymer. At least a major portion of the drug is amorphous in the dispersion. The compositions improve the stability of the drug in the dispersion, and/or the concentration of drug in a use environment.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: August 7, 2012
    Assignee: Bend Research, Inc.
    Inventors: Walter C. Babcock, William J. Curatolo, Dwayne T. Friesen, Rodney J. Ketner, Julian B. Lo, James A. S. Nightingale, Ravi M. Shanker, James B. West
  • Patent number: 7887844
    Abstract: A multiparticulate for controlled release of a drug comprises crystalline drug, a glyceride having at least one alkylate substituent of at least 16 carbon atoms, and a poloxamer, wherein at least 70 wt % of the drug in the multiparticulate is crystalline.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: February 15, 2011
    Assignee: Pfizer Inc.
    Inventors: Leah E. Appel, Roderick J. Ray, David K. Lyon, James B. West, Scott B. McCray, Marshall D. Crew, Dwayne T. Friesen, Scott M. Herbig, Julian B. Lo
  • Publication number: 20090011024
    Abstract: A pharmaceutical composition comprises a dispersion comprising a low-solubility drug and a matrix combined with a concentration-enhancing polymer. At least a major portion of the drug is amorphous in the dispersion. The compositions improve the stability of the drug in the dispersion, and/or the concentration of drug in a use environment.
    Type: Application
    Filed: July 8, 2008
    Publication date: January 8, 2009
    Inventors: Walter C. Babcock, William J. Curatolo, Dwayne T. Friesen, Rodney J. Ketner, Julian B. Lo, James A.S. Nightingale, Ravi M. Shanker, James B. West
  • Publication number: 20080199527
    Abstract: A pharmaceutical composition is disclosed which comprises multiparticulates wherein said multiparticulates further comprise an azithromycin core and an enteric coating disposed upon said azithromycin core.
    Type: Application
    Filed: December 9, 2005
    Publication date: August 21, 2008
    Applicant: Pfizer Inc.
    Inventors: William J. Curatolo, Scott M. Herbig, Steven R. LeMott, Julian B. Lo, Leah E. Appel, Dwayne T. Friesen, David K. Lyon, Scott B. McCray, James B. West
  • Patent number: 6984403
    Abstract: The present invention is related to an oral dosage form comprising an effective amount of an alkalizing agent and an azithromycin multiparticulate wherein said multiparticulate comprises azithromycin, a glyceride which comprises glyceryl monobehenate, glyceryl dibehenate, glyceryl tribehenate, or a mixture thereof and a poloxamer. Typically, the oral dosage form includes any suitable oral dosing means such as a powder for oral suspension, a unit dose packet or sachet, a tablet or a capsule.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: January 10, 2006
    Assignee: Pfizer Inc.
    Inventors: Timothy A. Hagen, Julian B. Lo, Avinash G. Thombre, Scott M. Herbig, Leah Elizabeth Appel, Marshall David Crew, Dwayne Thomas Friesen, David Keith Lyon, Scott Baldwin McCray, James Blair West
  • Publication number: 20040035876
    Abstract: An apparatus for dispensing articles is provided which comprises a housing for retaining a circular, or substantially circular, medicament container, wherein the housing comprises a dispensing aperture registerable with a single medicament cell of the medicament container; and means for locking the medicament container in a locked, non-rotating dispensing position; wherein the medicament container comprises a plurality of medicament cells containing contents to be dispensed, and is moveable between a freely rotatable, non-dispensing position and the locked, non-rotating dispensing position such that when the medicament container is in the freely rotatable, non-dispensing position, the single medicament cell is out of registry with the dispensing aperture of the housing, and when the medicament container is in the locked, non-rotating dispensing position, the single medicament cell and the dispensing aperture of the housing are in registry, such that only contents contained in the single medicament cell may be
    Type: Application
    Filed: August 21, 2003
    Publication date: February 26, 2004
    Applicant: Pfizer Inc
    Inventor: Julian B. Lo
  • Publication number: 20030104063
    Abstract: A pharmaceutical composition comprises a dispersion comprising a low-solubility drug and a matrix combined with a concentration-enhancing polymer. At least a major portion of the drug is amorphous in the dispersion. The compositions improve the stability of the drug in the dispersion, and/or the concentration of drug in a use environment.
    Type: Application
    Filed: June 19, 2002
    Publication date: June 5, 2003
    Inventors: Walter C. Babcock, William J. Curatolo, Dwayne T. Friesen, Rodney J. Ketner, Julian B. Lo, James A. S. Nightingale, Ravi M. Shanker, James B. West
  • Patent number: 6503222
    Abstract: The present invention provides an apparatus for facilitating the oral delivery of an active agent to a patient in need of treatment therewith, which apparatus comprises an active agent mixing chamber, a mixture delivery tube, and at least one liquid delivery tube. A mixture formed in the mixing chamber which comprises a combination of an active agent, or a pharmaceutical formulation thereof, and a liquid diluent may be delivered into the oral cavity of the patient from the mixing chamber by suction on the mixture delivery tube.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: January 7, 2003
    Assignee: Pfizer Inc
    Inventor: Julian B. Lo
  • Patent number: 6409020
    Abstract: The invention provides a child-resistant apparatus for dispensing articles which comprises a housing for retaining a blister package wherein the, housing comprises a dispensing aperture; optionally, but preferably, a blister package comprising at least one blister cell containing an article to be dispensed; and a substantially rigid backing sheet substantially co-extensive with, and substantially blocking, the dispensing aperture wherein the backing sheet comprises exposed end portions, such that pressure applied on either exposed end portion individually, or on both exposed end portions simultaneously of the backing sheet, imparts arcuate flexure thereto and dislocation thereof from the substantially co-extensive, and substantially blocking position, to a position where the dispensing aperture is unblocked permitting the article contained in the blister cell to be dispensed.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: June 25, 2002
    Assignee: Pfizer Inc.
    Inventor: Julian B. Lo
  • Patent number: 6401926
    Abstract: A child-resistant apparatus for dispensing articles which comprises a housing for retaining a blister package wherein the housing comprises a dispensing aperture; optionally, but preferably, a blister package comprising at least one blister cell containing an article to be dispensed; and a substantially rigid backing sheet substantially co-extensive with, and substantially blocking, the dispensing aperture, such that pressure exerted on an exposed top edge of the backing sheet imparts arcuate flexure thereto and dislocation thereof from the substantially co-extensive, and substantially blocking position, to a position where the dispensing aperture is unblocked permitting the at least one article contained in the at least one blister cell to be dispensed. Release of pressure on the exposed top edge of the backing sheet relaxes flexure thereof such that the substantially co-extensive, and substantially blocking position, wherein the backing sheet substantially blocks the dispensing aperture, is restored.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: June 11, 2002
    Assignee: Pfizer Inc.
    Inventor: Julian B. Lo
  • Publication number: 20020036217
    Abstract: The present invention provides an apparatus for facilitating the oral delivery of an active agent to a patient in need of treatment therewith, which apparatus comprises an active agent mixing chamber, a mixture delivery tube, and at least one liquid delivery tube. A mixture formed in the mixing chamber which comprises a combination of an active agent, or a pharmaceutical formulation thereof, and a liquid diluent may be delivered into the oral cavity of the patient from the mixing chamber by suction on the mixture delivery tube.
    Type: Application
    Filed: September 21, 2001
    Publication date: March 28, 2002
    Inventor: Julian B. Lo
  • Patent number: 5819967
    Abstract: A child-resistant, elderly-accessible safety container designed for storage of potentially hazardous materials. The closure includes three major components: a rotatable member secured coaxially around the neck of the container and having at least one biasing member disposed along its upper surface, at least one resilient abutment member, extending outward from the neck and terminating in a tip end, and is capable of being distended or compressed by the biasing member, and a closure member having at least one closure member stop disposed along its inner surface. Turning the rotatable member in a predetermined direction causes the biasing member to contact and compress the abutment member tangentially in relation to the outer surface of the neck. Such compression interrupts contact of the tip end of the abutment member with the closure member stop allowing the closure member to be rotated in the opposite direction and removed from the container.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: October 13, 1998
    Assignee: Pfizer Inc.
    Inventor: Julian B. Lo
  • Patent number: 5529789
    Abstract: An efficient method for making high strength, highly porous, fast dissolving delivery devices. The method comprises mixing a formulation comprising menthol, a water-soluble, menthol-soluble polymer, and an active agent at a temperature such that the menthol is substantially molten. The formulation is disposed in a mold, solidified and the menthol is sublimed from the solidified molded formulation. Preferably, the solidification occurs at a temperature sufficient to provide a substantially amorphous menthol structure.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: June 25, 1996
    Assignee: Pfizer, Inc.
    Inventor: Julian B. Lo
  • Patent number: 5516530
    Abstract: High strength, high porosity delivery devices have a shaped surface and disintegrate quickly in an aqueous medium. The devices can be prepared by disposing a formulation in a die to form a frozen predevice. A second die is contacted with the frozen formulation surface at a pressure and temperature for a time sufficient to locally momentarily liquify and shape the device surface. The shaping is followed by lyophilization.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: May 14, 1996
    Assignee: Pfizer Inc.
    Inventors: Julian B. Lo, Gary G. Mackay, Michael J. Puz
  • Patent number: D444056
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: June 26, 2001
    Assignee: Pfizer Inc.
    Inventor: Julian B. Lo
  • Patent number: D392562
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: March 24, 1998
    Assignee: Pfizer Inc.
    Inventor: Julian B. Lo