Granted Patent
Utility
US 6,492,989 · App. 09/553,507
Computer method and apparatus for creating visible graphics by using a graph algebra
Inventor:
Leland Wilkinson
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Apr 20, 2000
Inventor
Leland Wilkinson
Assignee (at issue)
Illumitek 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.