Patents Assigned to DeftIO LLC
  • Flow controlled sound generation apparatus
    Patent number: 11893974
    Abstract: A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: February 6, 2024
    Assignee: DeftIO LLC
    Inventor: Manjirnath Chatterjee
  • Flow controlled sound generation apparatus
    Patent number: 11282488
    Abstract: A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: March 22, 2022
    Assignee: DeftIO LLC
    Inventor: Manjirnath Chatterjee
  • Flow controlled sound generation apparatus
    Patent number: 10679597
    Abstract: A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: June 9, 2020
    Assignee: DeftIO LLC
    Inventor: Manjirnath Chatterjee
  • Flow controlled sound generation apparatus
    Patent number: 9818391
    Abstract: A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: November 14, 2017
    Assignee: Deftio LLC
    Inventor: Manjirnath Chatterjee
  • FLOW CONTROLLED SOUND GENERATION APPARATUS
    Publication number: 20140182965
    Abstract: A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves.
    Type: Application
    Filed: December 31, 2013
    Publication date: July 3, 2014
    Applicant: DeftIO LLC
    Inventor: Manjirnath Chatterjee