Patents by Inventor Cheng H. Wu

Cheng H. Wu 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: 8578931
    Abstract: The invention provides exemplary aerosolization apparatus and methods for aerosolizing a substance. According to one exemplary method, a liquid is transferred from a first chamber into a second chamber having a substance that is in a dry state to form a solution. The solution is then transferred from the second chamber and onto an atomization member. The atomization member is operated to aerosolize the solution.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: November 12, 2013
    Assignee: Novartis AG
    Inventors: Yehuda Ivri, Linda R. De Young, Cheng H. Wu, Miro S. Cater, Vijay Kumar, Markus Flierl
  • Patent number: 8561604
    Abstract: The invention provides methods and apparatus for nebulizing liquids. In one exemplary embodiment, an apparatus is provided which comprises a thin shell member having a front surface, a rear surface, and a plurality of apertures extending therebetween. The apertures are tapered to narrow from the rear surface to the front surface. A liquid supplier is further provided which delivers a predetermined unit volume of liquid to the rear surface. A vibrator vibrates the thin shell member to eject liquid droplets from the front surface of the thin shell member.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: October 22, 2013
    Assignee: Novartis AG
    Inventors: Yehuda Ivri, Cheng H. Wu
  • Patent number: 6782886
    Abstract: An apparatus to make a certain volume of liquid available for atomization comprises a container adapted to hold a liquid, and a piston pump. The piston pump comprises a piston member and a valve body, with the piston member being slidable within the valve body. Further, the valve body functions with the piston member to define a metering chamber. In this way, the metering chamber is adapted to be filled with liquid from the container when the piston member is moved to a filling position, and the piston pump is adapted to dispense a known volume of the liquid from the metering chamber when the piston member is moved to a dispensing position.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: August 31, 2004
    Assignee: Aerogen, Inc.
    Inventors: Sharad Narayan, Yehuda Ivri, Cheng H. Wu, Miro S. Cater
  • Publication number: 20040139963
    Abstract: The invention provides methods and apparatus for nebulizing liquids. In one exemplary embodiment, an apparatus is provided which comprises a thin shell member having a front surface, a rear surface, and a plurality of apertures extending therebetween. The apertures are tapered to narrow from the rear surface to the front surface. A liquid supplier is further provided which delivers a predetermined unit volume of liquid to the rear surface. A vibrator vibrates the thin shell member to eject liquid droplets from the front surface of the thin shell member.
    Type: Application
    Filed: September 5, 2003
    Publication date: July 22, 2004
    Applicant: Aerogen, Inc.
    Inventors: Yehuda Ivri, Cheng H. Wu
  • Patent number: 6755189
    Abstract: The invention provides exemplary aerosolization apparatus and methods for aerosolizing a substance. According to one exemplary method, a liquid is transferred from a first chamber into a second chamber having a substance that is in a dry state to form a solution. The solution is then transferred from the second chamber and onto an atomization member. The atomization member is operated to aerosolize the solution.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: June 29, 2004
    Assignee: Aerogen, Inc.
    Inventors: Yehuda Ivri, Linda R. De Young, Cheng H. Wu, Miro S. Cater, Vijay Kumar, Markus Flierl
  • Patent number: 6640804
    Abstract: The invention provides methods and apparatus for nebulizing liquids. In one exemplary embodiment, an apparatus is provided which comprises a thin shell member having a front surface, a rear surface, and a plurality of apertures extending therebetween. The apertures are tapered to narrow from the rear surface to the front surface. A liquid supplier is further provided which delivers a predetermined unit volume of liquid to the rear surface. A vibrator vibrates the thin shell member to eject liquid droplets from the front surface of the thin shell member.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: November 4, 2003
    Assignee: Aerogen, Inc.
    Inventors: Yehuda Ivri, Cheng H. Wu
  • Publication number: 20030019493
    Abstract: An apparatus to make a certain volume of liquid available for atomization comprises a container adapted to hold a liquid, and a piston pump. The piston pump comprises a piston member and a valve body, with the piston member being slidable within the valve body. Further, the valve body functions with the piston member to define a metering chamber. In this way, the metering chamber is adapted to be filled with liquid from the container when the piston member is moved to a filling position, and the piston pump is adapted to dispense a known volume of the liquid from the metering chamber when the piston member is moved to a dispensing position.
    Type: Application
    Filed: March 20, 2001
    Publication date: January 30, 2003
    Inventors: Sharad Narayan, Yehuda Ivri, Cheng H. Wu, Miro S. Cater
  • Publication number: 20030000520
    Abstract: The invention provides methods and apparatus for nebulizing liquids. In one exemplary embodiment, an apparatus is provided which comprises a thin shell member having a front surface, a rear surface, and a plurality of apertures extending therebetween. The apertures are tapered to narrow from the rear surface to the front surface. A liquid supplier is further provided which delivers a predetermined unit volume of liquid to the rear surface. A vibrator vibrates the thin shell member to eject liquid droplets from the front surface of the thin shell member.
    Type: Application
    Filed: August 15, 2002
    Publication date: January 2, 2003
    Applicant: Aerogen, Inc.
    Inventors: Yehuda Ivri, Cheng H. Wu
  • Patent number: 6467476
    Abstract: The invention provides methods and apparatus for nebulizing liquids. In one exemplary embodiment, an apparatus is provided which comprises a thin shell member having a front surface, a rear surface, and a plurality of apertures extending therebetween. The apertures are tapered to narrow from the rear surface to the front surface. A liquid supplier is further provided which delivers a predetermined unit volume of liquid to the rear surface. A vibrator vibrates the thin shell member to eject liquid droplets from the front surface of the thin shell member.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: October 22, 2002
    Assignee: Aerogen, Inc.
    Inventors: Yehuda Ivri, Cheng H. Wu
  • Publication number: 20020023639
    Abstract: The invention provides exemplary aerosolization apparatus and methods for aerosolizing a substance. According to one exemplary method, a liquid is transferred from a first chamber into a second chamber having a substance that is in a dry state to form a solution. The solution is then transferred from the second chamber and onto an atomization member. The atomization member is operated to aerosolize the solution.
    Type: Application
    Filed: May 18, 1999
    Publication date: February 28, 2002
    Inventors: YEHUDA IVRI, LINDA R. DE YOUNG, CHENG H. WU, MIRO S. CATER, VIJAY KUMAR, MARKUS FLIERL
  • Publication number: 20020011247
    Abstract: The invention provides exemplary aerosolization apparatus and methods for aerosolizing a substance. According to one exemplary method, a liquid is transferred from a first chamber into a second chamber having a substance that is in a dry state to form a solution. The solution is then transferred from the second chamber and onto an atomization member. The atomization member is operated to aerosolize the solution.
    Type: Application
    Filed: April 18, 2000
    Publication date: January 31, 2002
    Inventors: Yehuda Ivri, Linda R. De Young, Cheng H. Wu, Miro S. Cater, Vijay Kumar, Markus Flierl
  • Patent number: 6205999
    Abstract: The invention provides exemplary aerosolization apparatus and methods for aerosolizing a substance. According to one exemplary method, a liquid is transferred from a first chamber into a second chamber having a substance that is in a dry state to form a solution. The solution is then transferred from the second chamber and onto an atomization member. The atomization member is operated to aerosolize the solution.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: March 27, 2001
    Assignee: Aerogen, Inc.
    Inventors: Yehuda Ivri, Linda R. De Young, Cheng H. Wu, Miro S. Cater, Vijay Kumar, Markus Flierl
  • Patent number: 6085740
    Abstract: The invention provides methods and apparatus for nebulizing liquids. In one exemplary embodiment, an apparatus is provided which comprises a thin shell member having a front surface, a rear surface, and a plurality of apertures extending therebetween. The apertures are tapered to narrow from the rear surface to the front surface. A liquid supplier is further provided which delivers a predetermined unit volume of liquid to the rear surface. A vibrator vibrates the thin shell member to eject liquid droplets from the front surface of the thin shell member.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: July 11, 2000
    Assignee: Aerogen, Inc.
    Inventors: Yehuda Ivri, Cheng H. Wu
  • Patent number: 6014970
    Abstract: The invention provides exemplary aerosolization apparatus and methods for aerosolizing a substance. According to one exemplary method, a cartridge is coupled to a liquid dispenser and includes a substance which is in a dry state. A liquid is dispensed from the dispenser into the cartridge so that the substance may be dissolved into the dispensed liquid to form a solution. The solution is then transferred from the cartridge and onto an atomization member which is operated to aerosolize the solution.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: January 18, 2000
    Assignee: Aerogen, Inc.
    Inventors: Yehuda Ivri, Linda R. De Young, Cheng H. Wu, Miro S. Cater, Vijay Kumar, Markus Flierl
  • Patent number: 5758637
    Abstract: The invention provides methods and apparatus for nebulizing liquids. In one exemplary embodiment, an apparatus is provided which comprises a thin shell member having a front surface, a rear surface, and a plurality of apertures extending therebetween. The apertures are tapered to narrow from the rear surface to the front surface. A liquid supplier is further provided which delivers a predetermined unit volume of liquid to the rear surface. A vibrator vibrates the thin shell member to eject liquid droplets from the front surface of the thin shell member.
    Type: Grant
    Filed: February 21, 1996
    Date of Patent: June 2, 1998
    Assignee: AeroGen, Inc.
    Inventors: Yehuda Ivri, Cheng H. Wu
  • Patent number: 5586550
    Abstract: The invention provides methods and apparatus for the delivery of therapeutic liquids to the respiratory system of a patient. In an exemplary embodiment, the apparatus includes a vibratable non-planar member having tapered apertures which produce droplets wherein about 70% of more of the droplets by weight have a size in the range from about 1 .mu.m to 6 .mu.m. The apparatus may further optionally include a breath sensor which detects the inspiratory flow rate and transmits a signal to vibrate the non-planar member at a frequency corresponding to the inspiratory flow rate. Optionally, the non-planar member may be included in a disposable mouthpiece assembly that is separate from the oscillator assembly. In this manner, the mouthpiece assembly may be discarded after use, while the oscillator assembly may be reused.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: December 24, 1996
    Assignee: Fluid Propulsion Technologies, Inc.
    Inventors: Yehuda Ivri, Cheng H. Wu
  • Patent number: 5033994
    Abstract: An apparatus for providing an automatic transmission, including at least one planetary gear, at least one braking pump, at least one flow control valve and an oil path system provided therebetween for obtaining a continuously variable transmission (CVT). Each braking member of at least one planetary gear of the present invention is connected to each rotor shaft of at least one braking pump. A sensing means is provided for sensing a rotation speed of a rear propeller shaft and to output predetermined amounts of pressurized working fluid in response to the rotation speed of the rear propeller shaft. A first flow control valve provided on an oil path system is controlled by the pressurized working fluid to be closed to various extents so as to reduce the flow within the oil path system. The rotation speed of at least one braking pump together with each braking member is also reduced, on extreme conditions the pumps even stop.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: July 23, 1991
    Inventor: Cheng H. Wu