Patents by Inventor Davuluri Prahlada Rao

Davuluri Prahlada Rao 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).

  • Fixed bed hypersorber and fractionation of fluids using the same
    Patent number: 7771510
    Abstract: The present invention relates to a fixed bed hypersorber having moving ports for injecting and withdrawing fluids which can be used for fractionation of gaseous mixtures in a fixed bed filled with absorbents/adsorbents, where separation is brought about by contacting gaseous mixture in a counter-current fashion. The moving ports may take the form of pistons or pairs of tubes arranged concentrically, where one of the tubes has a straight slot and the other tube has a helical slot. Rotation of the tubes with respect to each other produces the moving port.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: August 10, 2010
    Assignees: Gail (India) Limited, India Institute of Technology
    Inventors: Bojanki Satya Govinda Ramaprasad, Davuluri Prahlada Rao