Granted Patent
Utility
US 6,807,986 · App. 10/104,447
Noise reduction device for fluid flow systems
Inventor:
Henry W. Boger
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Mar 22, 2002
Inventor
Henry W. Boger
Assignee (at issue)
Dresser, LLC
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.