Granted Patent
Utility
US 6,173,584 · App. 09/390,082
Multieffect distillation
Inventor:
Rakesh Agrawal
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Sep 3, 1999
Inventor
Rakesh Agrawal
Assignee (at issue)
Air Products and Chemicals, 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.