Granted Patent
Utility
US 6,798,432 · App. 10/063,888
Printing method for interpolating gray levels
Inventors:
Yu-Fan Fang, Kuang-Huei Huang
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: May 21, 2002
Inventors
Yu-Fan Fang
Kuang-Huei Huang
Assignee (at issue)
Hi-Touch Imaging Technologies 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.