Granted Patent
Utility
US 5,438,821 · App. 08/208,830
Method and appliance for influencing the wake of combustion chamber inserts
Inventor:
Burkhard Schulte-Werning
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Mar 11, 1994
Inventor
Burkhard Schulte-Werning
Assignee (at issue)
ABB Management AG
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.