Granted Patent
Utility
US 6,534,202 · App. 09/968,500
Organic electroluminescent device and process for producing the same
Inventors:
Yoshiharu Sato, Mitsuru Tanamura
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Oct 2, 2001
Inventors
Yoshiharu Sato
Mitsuru Tanamura
Assignee (at issue)
MITSUBISHI CHEMICAL CORPORATION
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.