Granted Patent
Utility
US 6,636,212 · App. 09/713,474
Method and apparatus for determining visibility of groups of pixels
Inventor:
Benjamin M. Zhu
Patented Case
View Patent ↗
Granted: Oct 21, 2003
Filed: Nov 14, 2000
Inventor
Benjamin M. Zhu
Assignee (at issue)
Nvidia 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.