Patents Represented by Attorney Albert C. Nolte

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  • Production of phosphates
    Patent number: 4228140
    Abstract: Various stages of the process of producing phosphates are subject to a vacuum produced by a liquid ring pump in various materials of construction using relatively high concentrations of sulfuric acid as the compressant liquid.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: October 14, 1980
    Assignee: The Nash Engineering Company
    Inventor: Stephen J. King