Granted Patent
Utility
US 6,788,980 · App. 09/591,604
Methods and apparatus for control using control devices that provide a virtual machine environment and that communicate via an IP network
Inventor:
Alexander Johnson
Patented Case
View Patent ↗
Granted: Sep 7, 2004
Filed: Jun 9, 2000
Inventor
Alexander Johnson
Assignee (at issue)
Invensys Systems, 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.