Patents by Inventor Lakshmi Penugonda

Lakshmi Penugonda 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).

  • Drug solution level sensor for an ultrasonic nebulizer
    Patent number: 8991389
    Abstract: A nebulizer includes a piezoelectric transducer for aerosolizing a drug solution in a disposable cup module disposed above the transducer. Acoustic waves generated by the transducer propagate sequentially through transmitting medium, a first barrier, coupling medium, and a second barrier that forms part of the cup module, and into the interior of the cup module. The transducer at least partially comprises silver. The silver fluidly contacts the transmitting medium to discourage bacteria growth in the transmitting medium. The device includes electronics components that drive the transducer and measure an electrical characteristic associated with the transducer during operation. The electronics components measures changes in the electrical characteristic to determine when the drug solution level falls below a predetermined threshold, and deactivates the device accordingly.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: March 31, 2015
    Assignee: RIC Investments, LLC
    Inventors: Mark Morrison, Eric A. Lieberman, Lakshmi Penugonda
  • Drug solution level sensor for an ultrasonic nebulizer
    Publication number: 20070277816
    Abstract: A nebulizer includes a piezoelectric transducer for aerosolizing a drug solution in a disposable cup module disposed above the transducer. Acoustic waves generated by the transducer propagate sequentially through transmitting medium, a first barrier, coupling medium, and a second barrier that forms part of the cup module, and into the interior of the cup module. The transducer at least partially comprises silver. The silver fluidly contacts the transmitting medium to discourage bacteria growth in the transmitting medium. The device includes electronics components that drive the transducer and measure an electrical characteristic associated with the transducer during operation. The electronics components measures changes in the electrical characteristic to determine when the drug solution level falls below a predetermined threshold, and deactivates the device accordingly.
    Type: Application
    Filed: April 16, 2007
    Publication date: December 6, 2007
    Inventors: Mark Morrison, Eric Lieberman, Lakshmi Penugonda