Granted Patent
Utility
US 5,961,369 · App. 09/090,666
Methods for the in-process detection of workpieces with a monochromatic light source
Inventors:
Anthony L. Bartels, Robert F. Allen, Paul Holzapfel, Warren Lin
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Jun 4, 1998
Inventors
Anthony L. Bartels
Robert F. Allen
Paul Holzapfel
Warren Lin
Assignee (at issue)
SpeedFam-IPEC Corporation
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.