Patents by Inventor Julian Chan

Julian Chan 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).

  • Publication number: 20060131340
    Abstract: A container and valve assembly for storing and dispensing substances including edible substances. The container is a tubular body that defines a storage chamber for storing the substance and a head portion for supports the valve assembly. The valve assembly includes a valve body and a valve seat surrounded by a flexible outer cover that includes a valve portion. A seem between the valve portion and valve seat form a one-way release valve wherein a portion of the seam remains closed when the substance is dispensed. To dispense the substance, pressure is applied to the body forcing the substance into the valve assembly, which in turn, controls the flow and release of the substance without exposing the remaining substance to the external atmosphere; thus, the sterility of the storage chamber and remaining substance is maintained, and the shelf life of the substance is increased.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 22, 2006
    Inventors: Daniel Py, Julian Chan
  • Publication number: 20060124197
    Abstract: A dispenser for holding multiple doses of fluids or other substances, and for dispensing the substances, has a vial, a flexible bladder received within the vial, and a variable volume storage chamber formed between the bladder and vial. A filling valve is coupled in fluid communication with the storage chamber and defines (1) a normally closed, fluid-tight position hermetically sealing the storage chamber from the ambient atmosphere, and (2) an open position allowing the passage of fluid through the valve both to evacuate the storage chamber and to introduce fluid through the valve to fill the storage chamber. A pump is coupled in fluid communication with the storage chamber for pumping fluids out of the storage chamber. A dispensing valve is coupled in fluid communication with the pump and defines (1) a normally closed, fluid-tight position preventing the passage of fluid out of the dispenser, and (2) an open position for dispensing pumped fluid therethrough.
    Type: Application
    Filed: February 8, 2006
    Publication date: June 15, 2006
    Applicant: Medical Instill Technologies, Inc.
    Inventors: Daniel Py, Julian Chan
  • Publication number: 20060079487
    Abstract: Bisphosphonate compounds and related methods of making and using are disclosed, including pyridinium-1-yl, quinolinium-1-yl, and related compounds. The activity of compounds is disclosed in the context of functional assays such as Leishmania major farnesyl diphosphate synthase (FPPS) inhibition, Dictyostelium discoideum growth inhibition, human gamma delta T cell activation, and bone resorption. The applicability of bisphosphonate compounds in the context of parasitic infections, for example against trypanosomes, is disclosed. Further potential applications of the invention are disclosed regarding the treatment of one or more conditions such as bone resorption disorders, cancer, bone pain, infectious diseases, and in immunotherapy.
    Type: Application
    Filed: October 7, 2005
    Publication date: April 13, 2006
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: John Sanders, Yongcheng Song, Julian Chan, Eric Oldfield, Yonghui Zhang
  • Publication number: 20060065677
    Abstract: A dispenser for dispensing a substance, such as a pharmaceutical, ophthalmic, dermatological, cosmeceutical, cosmetic or other product, has a body defining a variable-volume storage chamber for storing the product. A dispensing portion of the dispenser is connected with the body and defines a bore coupled in fluid communication with the storage chamber for receiving substance therefrom, and an outlet aperture coupled in fluid communication with the bore. A one-way valve of the dispenser includes an axially-extending valve seat and an axially-extending flexible valve cover seated on the valve seat and defining a normally-closed, axially-extending seam therebetween forming a fluid-tight seal between the valve cover and valve seat. The flexible valve cover is movable relative to the valve seat and the seam is connectable in fluid communication with the outlet aperture to allow the passage of substance through the seam and out of the dispenser.
    Type: Application
    Filed: September 27, 2005
    Publication date: March 30, 2006
    Inventors: Daniel Py, Julian Chan, David Fellows, Eric Hartman, Bing He
  • Publication number: 20050263543
    Abstract: A syringe is provided for the delivery of controlled, metered amounts of any of numerous different substances to humans or animals, such as medicaments, pharmaceuticals, cosmetics, and food products, or to deliver materials which may react upon exposure to air, such as glue. The syringes include a body and a plunger. Means are provided in the syringe body and the plunger to effect controlled movement of the plunger into the syringe to permit delivery of a pre-determined amount of the substance contained in the syringe. A one-way valve is provided at the dispensing tip of the syringe to hermetically seal the portion of the syringe containing the substance to be dispensed.
    Type: Application
    Filed: August 1, 2005
    Publication date: December 1, 2005
    Inventors: Daniel Py, Norbert Assion, Julian Chan
  • Publication number: 20050165368
    Abstract: An ophthalmic delivery device includes a body defining a fluid reservoir and a pump in fluid communication with the reservoir. The delivery device also includes a nozzle that includes a dosage chamber for holding a dosage of fluid, a valve seat, and a valve cover. The valve cover extends about the valve seat and forms an interface therebetween and the valve seat includes an outlet aperture. The interface is in fluid communication with the outlet aperture and the dosage chamber, and at least part of the valve cover is movable between (i) a closed position with the valve cover engaging the valve seat to close the interface and form a fluid-tight seal therebetween, and (ii) an open position with at least part of the valve cover spaced away from the valve seat in response to fluid flowing through the outlet aperture at a pressure greater than a valve opening pressure to allow the passage of pressurized fluid therebetween.
    Type: Application
    Filed: November 15, 2004
    Publication date: July 28, 2005
    Inventors: Daniel Py, Julian Chan, Jeffrey Atwood
  • Publication number: 20050155987
    Abstract: A container including a nozzle and body depending therefrom. The body is preferably tubular and defines an interior which retains a product to be dispensed. A cap engages the nozzle to prevent inadvertent release of the product. In order to dispense the product, the cap is removed and pressure is applied to the body and the nozzle allows release of the product. The nozzle releases the product without exposing the remaining product to the external atmosphere, thus the sterility of the interior of the body is maintained and the shelf life of the product is increased. The nozzle includes an inner body, coupled to the tubular body, surrounded by a flexible outer cover. A seam between the inner body and flexible outer cover forms a one-way release valve wherein a portion of the seam remains closed during dispensing the product.
    Type: Application
    Filed: October 28, 2004
    Publication date: July 21, 2005
    Inventors: Daniel Py, Norbert Assion, Julian Chan
  • Publication number: 20050150903
    Abstract: A device for storing and dispensing a substance includes a container having a body defining therein a storage chamber for receiving and storing the substance. The container includes a head located at one end of the body and a first passageway that is in fluid communication with the storage chamber of the body and defines a flow path therebetween. The container also includes a pierceable wall located on an opposite side of the passageway relative to the storage chamber, and a first connecting portion for connecting another component thereto. The device also includes a one-way valve assembly that includes a valve body including a body base defining a second passageway and at least one piercing portion engageable with the pierceable wall of the container. The valve assembly includes a second connecting portion that is connectable to the first connecting portion of the container for fixedly securing the valve assembly to the container when the valve assembly and container are located in the second position.
    Type: Application
    Filed: December 9, 2004
    Publication date: July 14, 2005
    Inventors: Daniel Py, Julian Chan, Giovanni Rodriguez
  • Publication number: 20050145146
    Abstract: The invention relates to fitted tablecloth coverings that may be affixed to a table without the use of a tool or affixing devices. The object of the present invention is to provide a tablecloth that may conveniently and quickly be affixed to a table and to provide an appealing visual presentation that does not require the use of installation tools and that will not damage the table.
    Type: Application
    Filed: March 7, 2005
    Publication date: July 7, 2005
    Applicant: SMT Solutions, Inc.
    Inventors: Larry Edinger, Walter Jones, Julian Chan
  • Publication number: 20050113331
    Abstract: The present invention relates to novel compositions comprising an excision-inhibiting bisphosphonate and a nucleoside reverse transcriptase inhibitor. The present invention also relates to methods for preventing or treating retrovirus-related diseases using a composition comprising a bisphosphonate and a nucleoside reverse transcriptase inhibitor. In a specific embodiment, the invention provides methods for preventing or treating AIDS by administering a bisphosphonate-based compound in combination with 3?-azido-3?-deoxythymidine (AZT) to patients infected with AZT-resistant HIV to improve the effectiveness of AZT therapy.
    Type: Application
    Filed: September 9, 2004
    Publication date: May 26, 2005
    Inventors: Michael Prniak, John Mellors, Eric Oldfield, Zev Tovian, Julian Chan
  • Publication number: 20050089358
    Abstract: A dispenser for dispensing a substance, such as a liquid lipstick or other product, has a body defining a variable-volume storage chamber for storing the product. A dispensing portion is connected with the body and defines a bore coupled in fluid communication with the storage chamber for receiving product therefrom, and an outlet aperture coupled in fluid communication with the bore. A piston is received within the bore, and a one-way valve is mounted on the dispensing portion for dispensing metered amounts of product therethrough. The one-way valve has an axially-extending valve seat, and an axially-extending visco-elastic valve cover seated on the valve seat and defining a normally-closed, axially-extending seam therebetween forming a fluid-tight seal between the valve cover and valve seat. The flexible valve cover is movable relative to the valve seat, and the seam is connectable in fluid communication with the outlet aperture to allow the passage of product through the seam and out of the dispenser.
    Type: Application
    Filed: July 16, 2004
    Publication date: April 28, 2005
    Inventors: Daniel Py, Julian Chan, Giovanni Rodriguez
  • Publication number: 20050029307
    Abstract: An ophthalmic dispenser has a rigid housing defining a fluid-receiving chamber, a flexible bladder receivable within the fluid-receiving chamber, a pump coupled in fluid communication with the fluid-receiving chamber, and a nozzle having a valve defining an annular, axially-extending valve seat, an outlet aperture coupled in fluid communication between the valve seat and the pump, and a flexible valve cover extending about the valve seat and forming an annular, axially-extending interface therebetween.
    Type: Application
    Filed: October 21, 2003
    Publication date: February 10, 2005
    Inventors: Daniel Py, Norbert Assion, Julian Chan, Joseph Ting
  • Publication number: 20050000591
    Abstract: A dispenser for holding multiple doses of fluids or other substances, and for dispensing the substances, has a vial, a flexible bladder received within the vial, and a variable volume storage chamber formed between the bladder and vial. A filling valve is coupled in fluid communication with the storage chamber and defines (1) a normally closed, fluid-tight position hermetically sealing the storage chamber from the ambient atmosphere, and (2) an open position allowing the passage of fluid through the valve both to evacuate the storage chamber and to introduce fluid through the valve to fill the storage chamber. A pump is coupled in fluid communication with the storage chamber for pumping fluids out of the storage chamber. A dispensing valve is coupled in fluid communication with the pump and defines (1) a normally closed, fluid-tight position preventing the passage of fluid out of the dispenser, and (2) an open position for dispensing pumped fluid therethrough.
    Type: Application
    Filed: May 12, 2004
    Publication date: January 6, 2005
    Inventors: Daniel Py, Julian Chan