Granted Patent
Utility
US 6,580,425 · App. 09/514,543
Hierarchical data structures for surface elements
Inventors:
Matthias Zwicker, Hanspeter Pfister, Markus Gross
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Feb 28, 2000
Inventors
Matthias Zwicker
Hanspeter Pfister
Markus Gross
Assignee (at issue)
Mitsubishi Electric Research Laboratories, 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.