Patents by Inventor Viwat Preamprasitchai

Viwat Preamprasitchai 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).

  • Dual variable inflatable safety system
    Patent number: 6139052
    Abstract: A supplemental restraint system includes dual restraints, e.g. airbags, per occupant for each collision event type, such as a front-end collision with another vehicle. A primary airbag responds to crash severity (vehicle speed and deceleration) and a secondary airbag responds to passenger specific parameters, such as weight and orientation.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: October 31, 2000
    Assignee: Viwat Preamprasitchai
    Inventor: Viwat Preamprasitchai