Patents by Inventor Dan Kaufman

Dan Kaufman 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).

  • Modification of Immune Cells to Increase Activity
    Publication number: 20210145883
    Abstract: Compositions, methods of making, and using modified immune cells such as NK cells to treat cancer, viral and microbial infection. The modified CISH?/? NK cells exhibit hypersensitivity to cytokines such as IL-2 and/or IL-15 and maintain expansion and anti-tumor functions.
    Type: Application
    Filed: May 13, 2019
    Publication date: May 20, 2021
    Inventors: Dan Kaufman, Huang Zhu
  • Mobile communication device with receiver speaker
    Patent number: 8699963
    Abstract: An audio subsystem in a mobile communication device has a speaker. In one implementation, the audio subsystem has a higher-gain power amplifier, a lower-gain power amplifier, and a switching system configured to route signals produced by the lower-gain power amplifier to the speaker while the device is operative in a first mode and configured to route signals produced by the higher-gain power amplifier to the speaker while the device is operative in a second mode. In another implementation, the audio subsystem has a power amplifier coupled to the speaker and a power supply control controlled to provide voltage at a first voltage level to the power amplifier while the device is operative in a first mode and controlled to provide voltage at a second, higher, voltage level to the power amplifier while the device is operative in a second mode.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: April 15, 2014
    Assignee: BlackBerry Limited
    Inventors: Chao Chen, Li Huang, Dan Kaufman
  • Mobile Communication Device with Receiver Speaker
    Publication number: 20130078930
    Abstract: An audio subsystem in a mobile communication device has a speaker. In one implementation, the audio subsystem has a higher-gain power amplifier, a lower-gain power amplifier, and a switching system configured to route signals produced by the lower-gain power amplifier to the speaker while the device is operative in a first mode and configured to route signals produced by the higher-gain power amplifier to the speaker while the device is operative in a second mode. In another implementation, the audio subsystem has a power amplifier coupled to the speaker and a power supply control controlled to provide voltage at a first voltage level to the power amplifier while the device is operative in a first mode and controlled to provide voltage at a second, higher, voltage level to the power amplifier while the device is operative in a second mode.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 28, 2013
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Chao Chen, Li Huang, Dan Kaufman