Granted Patent
Utility
US 6,609,870 · App. 10/035,456
Granular semiconductor material transport system and process
Inventors:
Dick S. Williams, Howard VanBooven, Jimmy D. Kurz, Timothy J. Kulage
Patented Case
View Patent ↗
Granted: Aug 26, 2003
Filed: Oct 23, 2001
Inventors
Dick S. Williams
Howard VanBooven
Jimmy D. Kurz
Timothy J. Kulage
Assignee (at issue)
MEMC Electronic Materials, 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.