Granted Patent
Utility
US 6,291,116 · App. 09/662,078
Thermal transfer element and process for forming organic electroluminescent devices
Inventors:
Martin B. Wolk, Paul F. Baude, Fred B. McCormick, Yong Hsu
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Sep 14, 2000
Inventors
Martin B. Wolk
Paul F. Baude
Fred B. McCormick
Yong Hsu
Assignee (at issue)
3M INNOVATIVE PROPERTIES 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.