Granted Patent
Utility
US 6,677,286 · App. 10/191,060
Compositions for removing etching residue and use thereof
Inventors:
Roberto Rovito, David Barry Rennie, Dana L. Durham
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Jul 10, 2002
Inventors
Roberto Rovito
David Barry Rennie
Dana L. Durham
Assignee (at issue)
Air Products and Chemicals, Inc.
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.