Patents by Inventor Douglas R. Dreisinger

Douglas R. Dreisinger 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).

  • Packed bed arrangement useful for mixing and/or oxidation
    Patent number: 5360603
    Abstract: The present invention relates to processes and apparatus for mixing oxidizable reactants with oxidant and/or oxidizing oxidizable reactants. Through using particular mixing and/or oxidizing arrangements, the risk of flammable or explosive reactions can be significantly reduced or prevented. When ammonia is used as the reactant, nitric acid can be obtained.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: November 1, 1994
    Assignee: Praxair Technology, Inc.
    Inventors: Raymond F. Drnevich, Douglas R. Dreisinger
  • Packed bed arrangement for oxidation reaction system
    Patent number: 5266291
    Abstract: The present invention relates to processes and apparatus for mixing oxidizable reactants with oxidant and oxidizing oxidizable reactants. When ammonia is used as the reactant, nitric acid can be obtained. Through using particular mixing and oxidizing arrangements, the volume of reactant oxidized can be significantly increased.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: November 30, 1993
    Assignee: Praxair Technology, Inc.
    Inventors: Raymond F. Drnevich, Douglas R. Dreisinger