Granted Patent
Utility
US 6,809,776 · App. 09/403,536
Control of video level by region and content of information displayed
Inventor:
Theodore Frederick Simpson
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Mar 6, 2000
Inventor
Theodore Frederick Simpson
Assignee (at issue)
Thomson Licensing
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.