Granted Patent
Utility
US 5,883,173 · App. 08/771,179
Nanocomposite materials (LAW392)
Inventors:
Chester W. Elspass, Dennis G. Peiffer, Edward N. Kresge, Dong-Tsai Hsieh, James Joseph Chludzinski, KENG S. LIANG
Patented Case
View Patent ↗
Granted: Mar 16, 1999
Filed: Dec 20, 1996
Inventors
Chester W. Elspass
Dennis G. Peiffer
Edward N. Kresge
Dong-Tsai Hsieh
James Joseph Chludzinski
KENG S. LIANG
Assignee (at issue)
Exxon Research and Engineering 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.