Granted Patent
Utility
US 6,538,701 · App. 09/251,366
Simulated pip window in EPG
Inventor:
Henry C. Yuen
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Feb 17, 1999
Inventor
Henry C. Yuen
Assignee (at issue)
Gemstar Development 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.