Granted Patent
Utility
US 5,531,116 · App. 08/180,266
Apparatus and method for phase tomographic determination of fluid currents
Inventors:
David B. Chang, Victor Vali, Donald H. Webb
Patented Case
View Patent ↗
Granted: Jul 2, 1996
Filed: Jan 12, 1994
Inventors
David B. Chang
Victor Vali
Donald H. Webb
Assignee (at issue)
Hughes Aircraft Company
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.