Granted Patent
Utility
US 6,368,421 · App. 09/113,892
Composition for stripping photoresist and organic materials from substrate surfaces
Inventors:
Joseph E. Oberlander, Mark Steven Slezak, Dinesh N. Khanna, Dana L. Durham, Lawrence F. Spinicelli
Patented Case
View Patent ↗
Granted: Apr 9, 2002
Filed: Jul 10, 1998
Inventors
Joseph E. Oberlander
Mark Steven Slezak
Dinesh N. Khanna
Dana L. Durham
Lawrence F. Spinicelli
Assignee (at issue)
Clariant Finance (BVI) Limited
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.