Granted Patent
Utility
US 5,675,407 · App. 08/397,766
Color ranging method for high speed low-cost three dimensional surface profile measurement
Inventor:
Zheng Geng
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Mar 2, 1995
Inventor
Zheng Geng
Assignee (at issue)
Zheng Jason Geng
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.