Granted Patent
Utility
US 6,236,049 · App. 09/397,585
Infrared imaging of ultrasonically excited subsurface defects in materials
Inventors:
Robert L. Thomas, Lawrence D. Favro, Xiaoyan Han, Zhong Ouyang, Hua Sui, Gang Sun
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Sep 16, 1999
Inventors
Robert L. Thomas
Lawrence D. Favro
Xiaoyan Han
Zhong Ouyang
Hua Sui
Gang Sun
Assignee (at issue)
Wayne State University
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.