Granted Patent
Utility
US 6,609,415 · App. 09/801,685
Method of evaluating adsorption of contaminant on solid surface
Inventors:
Syuichi Ishiwari, Haruo Kato
Patented Case
View Patent ↗
Granted: Aug 26, 2003
Filed: Mar 9, 2001
Inventors
Syuichi Ishiwari
Haruo Kato
Assignee (at issue)
Hitachi Plant Engineering & Construction Co., Ltd.
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.