Granted Patent
Utility
US 5,344,616 · App. 07/720,762
Apparatus for the separation of undesirable constituents from a waste gas
Inventor:
Hermann Bruggendick
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Jul 31, 1991
Inventor
Hermann Bruggendick
Assignee (at issue)
STEAG GmbH
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.