Patents by Inventor Sharad Narayan

Sharad Narayan 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).

  • Metering pumps for an aerosolizer
    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
  • Metering pumps for an aerosolizer
    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