Granted Patent
Utility
US 6,206,047 · App. 09/391,401
Flow duct for the passage of a two-phase flow
Inventor:
Jakob Keller
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: Sep 8, 1999
Inventor
Jakob Keller
Assignee (at issue)
Asea Brown Boveri, S.A.
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.