Granted Patent
Utility
US 6,106,629 · App. 09/434,118
Impurity doping apparatus
Inventor:
Joon-Young Yang
Patented Case
View Patent ↗
Granted: Aug 22, 2000
Filed: Nov 5, 1999
Inventor
Joon-Young Yang
Assignee (at issue)
LG Philips LCD 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.