Granted Patent
Utility
US 5,926,521 · App. 09/052,281
Exact region of interest cone beam imaging using 3D backprojection
Inventor:
Kwok C. Tam
Patented Case
View Patent ↗
Granted: Jul 20, 1999
Filed: Mar 31, 1998
Inventor
Kwok C. Tam
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.