Granted Patent
Utility
US 6,074,532 · App. 09/186,579
Adjunct for removal of aldehydes from chemical manufacturing production streams during distillative purification
Inventors:
Natu R. Patel, Vincent E. Lewis, Margaret D. Enderson
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Nov 5, 1998
Inventors
Natu R. Patel
Vincent E. Lewis
Margaret D. Enderson
Assignee (at issue)
Nalco/Exxon Energy Chemicals, L.P.
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.