Granted Patent
Utility
US 5,699,799 · App. 08/622,076
Automatic determination of the curved axis of a 3-D tube-shaped object in image volume
Inventors:
Beilei Xu, Jianzhong Qian
Patented Case
View Patent ↗
Granted: Dec 23, 1997
Filed: Mar 26, 1996
Inventors
Beilei Xu
Jianzhong Qian
Assignee (at issue)
Siemens Corporate Research, 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.