Patents by Inventor Devendra Singhal

Devendra Singhal 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).

  • Patent number: 6099376
    Abstract: Weightless Toy Objects where the upward buoyancy force of lighter than air gas inside the Toy Object body is carefully balanced against the gravitational weight of the Toy Object using a system of balance weights and orientation weights enabling the Toy Object to stay at a height and orientation in a space where it is deposited. The Toy Object can be in generic shapes, such as cube, cylinder and sphere for building larger weightless Toy Objects or in an identifiable shape such as cloud or airplane.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: August 8, 2000
    Inventors: Tara C Singhal, Devendra Singhal