Patents by Inventor John H. Petrik

John H. Petrik 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).

  • Hydrogen Liquefier
    Publication number: 20230175773
    Abstract: Hydrogen is liquefied through a process utilizing refrigeration from hydrogen at one, two, or three different pressures as well as a nitrogen refrigeration cycle. One or more stages of catalyst are used to convert ortho-hydrogen to para-hydrogen as the hydrogen is cooled and liquefied. Subcooled liquid hydrogen feeds the final stage of ortho-hydrogen to para-hydrogen conversion to reduce or eliminate vaporization of the hydrogen during the exothermic ortho-hydrogen to para-hydrogen conversion.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 8, 2023
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Paul Higginbotham, John H. Petrik, Christopher F. Harris
  • Lights removal from carbon dioxide
    Patent number: 11353261
    Abstract: Light gases such as helium are extracted from a carbon dioxide-containing feed stream by distillation. Costly dehydration steps are avoided by pumping the liquid bottoms stream leaving the distillation column without vaporization so as to ensure that any water present in the feed remains in solution with the bulk stream leaving the process. This prevents any liquid phase water causing corrosion or solid ice or hydrates forming to plug the flow.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: June 7, 2022
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Paul Higginbotham, John Eugene Palamara, Cory E. Sanderson, John H. Petrik
  • Lights Removal From Carbon Dioxide
    Publication number: 20210131727
    Abstract: Light gases such as helium are extacted from a carbon dioxide-containing feed stream by distillation. Costly dehydration steps are avoided by pumping the liquid bottoms stream leaving the distillation column without vaporization so as to ensure that any water present in the feed remains in solution with the bulk stream leaving the process. This prevents any liquid phase water causing corrosion or solid ice or hydrates forming to plug the flow.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Paul Higginbotham, John Eugene Palamara, Cory E. Sanderson, John H. Petrik