Granted Patent
Utility
US 6,445,812 · App. 09/235,997
Illumination compensation system for industrial inspection
Inventors:
Shang-Hong Lai, Ming Fang
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Jan 22, 1999
Inventors
Shang-Hong Lai
Ming Fang
Assignee (at issue)
Siemens Corporate Research, Inc.
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.