Granted Patent
Utility
US 5,508,449 · App. 08/178,129
Process for the preparation of trioxane
Inventors:
Gerhard Emig, Benno Kruger, Frank Kern, Michael Hoffmockel, Karl-Friedrich Muck, Gunter Sextro
Patented Case
View Patent ↗
Granted: Apr 16, 1996
Filed: Jan 6, 1994
Inventors
Gerhard Emig
Benno Kruger
Frank Kern
Michael Hoffmockel
Karl-Friedrich Muck
Gunter Sextro
Assignee (at issue)
Hoechst GmbH
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.