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).
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Patent number: 8703196Abstract: 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: GrantFiled: July 31, 2012Date of Patent: April 22, 2014Assignee: 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
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Publication number: 20120295988Abstract: 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: ApplicationFiled: July 31, 2012Publication date: November 22, 2012Inventors: 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
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Patent number: 8236328Abstract: 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: GrantFiled: July 8, 2008Date of Patent: August 7, 2012Assignee: 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
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Patent number: 7887844Abstract: 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: GrantFiled: December 3, 2004Date of Patent: February 15, 2011Assignee: 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
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Publication number: 20090011024Abstract: 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: ApplicationFiled: July 8, 2008Publication date: January 8, 2009Inventors: 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
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Publication number: 20080199527Abstract: 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: ApplicationFiled: December 9, 2005Publication date: August 21, 2008Applicant: 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
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Patent number: 6984403Abstract: 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: GrantFiled: January 23, 2004Date of Patent: January 10, 2006Assignee: 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
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Publication number: 20040035876Abstract: 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 beType: ApplicationFiled: August 21, 2003Publication date: February 26, 2004Applicant: Pfizer IncInventor: Julian B. Lo
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Publication number: 20030104063Abstract: 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: ApplicationFiled: June 19, 2002Publication date: June 5, 2003Inventors: 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
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Patent number: 6503222Abstract: 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: GrantFiled: September 21, 2001Date of Patent: January 7, 2003Assignee: Pfizer IncInventor: Julian B. Lo
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Patent number: 6409020Abstract: 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: GrantFiled: August 4, 2000Date of Patent: June 25, 2002Assignee: Pfizer Inc.Inventor: Julian B. Lo
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Patent number: 6401926Abstract: 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: GrantFiled: August 4, 2000Date of Patent: June 11, 2002Assignee: Pfizer Inc.Inventor: Julian B. Lo
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Publication number: 20020036217Abstract: 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: ApplicationFiled: September 21, 2001Publication date: March 28, 2002Inventor: Julian B. Lo
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Patent number: 5819967Abstract: 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: GrantFiled: June 3, 1997Date of Patent: October 13, 1998Assignee: Pfizer Inc.Inventor: Julian B. Lo
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Patent number: 5529789Abstract: 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: GrantFiled: September 15, 1994Date of Patent: June 25, 1996Assignee: Pfizer, Inc.Inventor: Julian B. Lo
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Patent number: 5516530Abstract: 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: GrantFiled: June 1, 1994Date of Patent: May 14, 1996Assignee: Pfizer Inc.Inventors: Julian B. Lo, Gary G. Mackay, Michael J. Puz
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Patent number: D444056Type: GrantFiled: January 21, 2000Date of Patent: June 26, 2001Assignee: Pfizer Inc.Inventor: Julian B. Lo
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Patent number: D392562Type: GrantFiled: October 29, 1996Date of Patent: March 24, 1998Assignee: Pfizer Inc.Inventor: Julian B. Lo