Patents by Inventor Ravindra Fulchand Pahade

Ravindra Fulchand Pahade 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).

  • Cryogenic rectification system for producing low purity oxygen and high purity oxygen
    Patent number: 5916262
    Abstract: A cryogenic rectification system wherein low purity oxygen is recovered from a side column or the lower pressure column of a double column while a portion of the low purity oxygen is fed to an auxiliary column driven by fluid having a high nitrogen concentration wherein high purity oxygen is produced.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: June 29, 1999
    Assignee: Praxair Technology, Inc.
    Inventors: Neil Mark Prosser, James Richard Handley, Ravindra Fulchand Pahade, Brien Scott Wierzchowski
  • Cryogenic rectification apparatus for producing high purity oxygen or low purity oxygen
    Patent number: 5881570
    Abstract: A cryogenic rectification plant comprising a double column and a side column having a bottom reboiler wherein feed air is passed into the double column by way of the bottom reboiler and an auxiliary compressor is connected in parallel with the feed air line.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: March 16, 1999
    Assignee: Praxair Technology, Inc.
    Inventors: Raymond Francis Drnevich, Ravindra Fulchand Pahade, Minish Mahendra Shah