Granted Patent
Utility
US 6,549,857 · App. 09/847,944
Methods for detecting leaks in pressurized piping with a pressure measurement system
Inventors:
Michael R. Fierro, Joseph W. Maresca, Jr.
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: May 2, 2001
Inventors
Michael R. Fierro
Joseph W. Maresca, Jr.
Assignee (at issue)
VISTA RESEARCH GROUP, 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.