Granted Patent
Utility
US 6,348,598 · App. 09/554,072
N-oxyl compounds, process for the preparation thereof, and process for inhibiting the polymerization of vinyl monomers with the same
Inventors:
Junichi Doi, Hiroshi Sonobe, Akio Tani, Shinji Suzuki, Masafumi Akehi
Patented Case
View Patent ↗
Granted: Feb 19, 2002
Filed: May 11, 2000
Inventors
Junichi Doi
Hiroshi Sonobe
Akio Tani
Shinji Suzuki
Masafumi Akehi
Assignees (at issue)
MITSUBISHI ELECTRIC CORPORATION
Osaka Organic Chemical Ind., Ltd.
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.