Granted Patent
Utility
US 6,077,942 · App. 08/995,509
Process of controlling particle size of naphthoquinone diazide esters
Inventor:
Joseph E. Oberlander
Patented Case
View Patent ↗
Granted: Jun 20, 2000
Filed: Dec 22, 1997
Inventor
Joseph E. Oberlander
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.