Granted Patent
Utility
US 6,197,129 · App. 09/564,696
Method for producing ultrafine-grained materials using repetitive corrugation and straightening
Inventors:
Yuntian T. Zhu, Terry C. Lowe, Honggang Jiang, Jianyu Huang
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: May 4, 2000
Inventors
Yuntian T. Zhu
Terry C. Lowe
Honggang Jiang
Jianyu Huang
Assignee (at issue)
United States Department of Energy
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.