Granted Patent
Utility
US 6,603,482 · App. 09/494,597
Screen space effects utilizing the alpha channel and the alpha buffer
Inventor:
Reed P. Tidwell
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Jan 31, 2000
Inventor
Reed P. Tidwell
Assignee (at issue)
Evans & Sutherland Computer 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.