Granted Patent
Utility
US 5,338,155 · App. 08/098,814
Multi-zone diffuser for turbomachine
Inventor:
Franz Kreitmeier
Patented Case
View Patent ↗
Granted: Aug 16, 1994
Filed: Jul 29, 1993
Inventor
Franz Kreitmeier
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.