Patents by Inventor Steven Wazenkewitz

Steven Wazenkewitz 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).

  • Process for recovering methylene chloride
    Publication number: 20050133359
    Abstract: A system for recovering methylene chloride from an aqueous waste stream is disclosed. The system includes a distillation unit, at least one heat transfer unit, receptacles for methylene chloride and waste product, a temperature probe and a controller configured to selectively divert product flow from the distillation unit to either of the receptacles or to a recycle line back to the distillation unit depending upon the temperature measured by the probe. Also disclosed is a related process of recovering methylene chloride with such a system.
    Type: Application
    Filed: December 23, 2003
    Publication date: June 23, 2005
    Inventors: Thomas Glenwright, Warren Smith, Betsy Dodge, Steven Wazenkewitz, Ronald Swift