Granted Patent
Utility
US 5,658,465 · App. 08/579,694
Method for inhibiting the deposition of silica and silicate compounds in water systems
Inventors:
Paul P. Nicholas, Zahid Amjad
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Dec 28, 1995
Inventors
Paul P. Nicholas
Zahid Amjad
Assignee (at issue)
B. F. Goodrich Company
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.