Granted Patent
Utility
US 6,375,803 · App. 09/462,821
Mechanical vapor recompression separation process
Inventors:
Minoo Razzaghi, Robert Spiering
Patented Case
View Patent ↗
Granted: Apr 23, 2002
Filed: Jan 14, 2000
Inventors
Minoo Razzaghi
Robert Spiering
Assignee (at issue)
AQUA-PURE VENTURES INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.