Patents by Inventor Richard Bruce Strait

Richard Bruce Strait 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).

  • Patent number: 5744009
    Abstract: An improved urea recovery process is presented. In the improved process, multiple vacuum rated surface condensers used to condense water vapor evolved during urea vacuum evaporation/concentration are replaced by a direct contact cooler/absorber to obtain substantial capital and utility cost savings. Improved heat exchange efficiency of the present process significantly reduces cooling water usage in comparison to the surface condensers.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: April 28, 1998
    Assignee: The M. W. Kellogg Company
    Inventors: Vishnu Deo Singh, Richard Bruce Strait, Thomas Anthony Czuppon